Bereichsleiter IT-Sicherheit und Verbraucherinformatik

Mail: gunnar.stevens(at)uni-siegen.de

Raum: US-F 111

Telefon: +49 (0) 271/ 740 – 3993

Sprechstunde: Nach Vereinbarung.

weitere Informationen unter www.itsec.wiwi.uni-siegen.de

2024

• ---

  Dethier, E., Kern, D., Stevens, G. & Boden, A. (2024)Making Order in Household Accounting – Digital Invoices as Domestic Work Artifacts

  IN Computer Supported Cooperative Work (CSCW) doi:10.1007/s10606-024-09495-w
  [BibTeX] [Abstract] [Download PDF]

  The digitization of financial activities in consumers‘ lives is increasing, and the digitalization of invoicing processes is expected to play a significant role, although this area is not well understood regarding the private sector. Human-Computer Interaction (HCI) and Computer Supported Cooperative Work (CSCW) research have a long history of analyzing the socio-material and temporal aspects of work practices that are relevant for the domestic domain. The socio-material structuring of invoicing work and the working styles of consumers must be considered when designing effective consumer support systems. In this ethnomethodologically-informed, design-oriented interview study, we followed 17 consumers in their daily practices of dealing with invoices to make the invisible administrative work involved in this process visible. We identified and described the meaningful artifacts that were used in a spatial-temporal process within various storage locations such as input, reminding, intermediate (for postponing cases) buffers, and archive systems. Furthermore, we identified three different working styles that consumers exhibited: direct completion, at the next opportunity, and postpone as far as possible. This study contributes to our understanding of household economics and domestic workplace studies in the tradition of CSCW and has implications for the design of electronic invoicing systems.

  @article{dethier_making_2024,
  title = {Making {Order} in {Household} {Accounting} - {Digital} {Invoices} as {Domestic} {Work} {Artifacts}},
  issn = {1573-7551},
  url = {https://doi.org/10.1007/s10606-024-09495-w},
  doi = {10.1007/s10606-024-09495-w},
  abstract = {The digitization of financial activities in consumers' lives is increasing, and the digitalization of invoicing processes is expected to play a significant role, although this area is not well understood regarding the private sector. Human-Computer Interaction (HCI) and Computer Supported Cooperative Work (CSCW) research have a long history of analyzing the socio-material and temporal aspects of work practices that are relevant for the domestic domain. The socio-material structuring of invoicing work and the working styles of consumers must be considered when designing effective consumer support systems. In this ethnomethodologically-informed, design-oriented interview study, we followed 17 consumers in their daily practices of dealing with invoices to make the invisible administrative work involved in this process visible. We identified and described the meaningful artifacts that were used in a spatial-temporal process within various storage locations such as input, reminding, intermediate (for postponing cases) buffers, and archive systems. Furthermore, we identified three different working styles that consumers exhibited: direct completion, at the next opportunity, and postpone as far as possible. This study contributes to our understanding of household economics and domestic workplace studies in the tradition of CSCW and has implications for the design of electronic invoicing systems.},
  language = {en},
  urldate = {2024-04-16},
  journal = {Computer Supported Cooperative Work (CSCW)},
  author = {Dethier, Erik and Kern, Dean-Robin and Stevens, Gunnar and Boden, Alexander},
  month = apr,
  year = {2024},
  keywords = {Empirical study, Accounting practices, Administrative work, Consumer informatics, Domestic workplace studies, Financial practices, Household management},
  }

• ---

  Hahn, A., Pakusch, C. & Stevens, G. (2024)Was the low-fare public transport in Bonn a success? An evaluation of the climate ticket users and lessons for transportation companies

  IN Case Studies on Transport Policy, Vol. 15, Pages: 101158 doi:10.1016/j.cstp.2024.101158
  [BibTeX] [Abstract] [Download PDF]

  The transport sector is a major source of air pollution and thus a major contributor to the changing climate. As a result, in the recent past, driving bans have been imposed on cars with critical pollutant groups. As an international UN campus and self-proclaimed climate capital, the Federal City of Bonn declared a climate emergency in 2019 and participated in a federally funded “Lead City” project to optimise air quality. A key goal of the project is to reduce private motorised transport and strengthen public transport. Among the implemented measures, a “climate ticket” was introduced in 2019 whereby consumers could purchase an annual 365 € ticket for all local public transport. This paper reports on an analysis of that ticket’s changes in travel behavior. A quantitative survey (n = 1,315) of the climate ticket users as well as the multiple regressions confirm that the climate ticket attracted more customers to the buses and trams and that a modal shift for the period of the measure was recognisable. The multiple regressions showed that the ticket was perceived significantly more positively by full-time employed users than by unemployed people. The results also show that, in addition to the price, it is essential that travel time and reliability are ensured. Furthermore, the eligible groups of people, the area of coverage, and good connecting services should be extended. To sustainably improve air quality, this type of mobility service must be optimised and introduced on a permanent basis.

  @article{hahn_was_2024,
  title = {Was the low-fare public transport in {Bonn} a success? {An} evaluation of the climate ticket users and lessons for transportation companies},
  volume = {15},
  issn = {2213-624X},
  shorttitle = {Was the low-fare public transport in {Bonn} a success?},
  url = {https://www.sciencedirect.com/science/article/pii/S2213624X24000130},
  doi = {10.1016/j.cstp.2024.101158},
  abstract = {The transport sector is a major source of air pollution and thus a major contributor to the changing climate. As a result, in the recent past, driving bans have been imposed on cars with critical pollutant groups. As an international UN campus and self-proclaimed climate capital, the Federal City of Bonn declared a climate emergency in 2019 and participated in a federally funded “Lead City” project to optimise air quality. A key goal of the project is to reduce private motorised transport and strengthen public transport. Among the implemented measures, a “climate ticket” was introduced in 2019 whereby consumers could purchase an annual 365 € ticket for all local public transport. This paper reports on an analysis of that ticket’s changes in travel behavior. A quantitative survey (n = 1,315) of the climate ticket users as well as the multiple regressions confirm that the climate ticket attracted more customers to the buses and trams and that a modal shift for the period of the measure was recognisable. The multiple regressions showed that the ticket was perceived significantly more positively by full-time employed users than by unemployed people. The results also show that, in addition to the price, it is essential that travel time and reliability are ensured. Furthermore, the eligible groups of people, the area of coverage, and good connecting services should be extended. To sustainably improve air quality, this type of mobility service must be optimised and introduced on a permanent basis.},
  urldate = {2024-02-22},
  journal = {Case Studies on Transport Policy},
  author = {Hahn, Andreas and Pakusch, Christina and Stevens, Gunnar},
  month = mar,
  year = {2024},
  keywords = {Mobility, Modal shift, Public transport, Bonn, Environmental benefits, Quantitative survey},
  pages = {101158},
  }

• ---

  Delong Du, Paluch, R., Stevens, G. & Müller, C. (2024)Exploring patient trust in clinical advice from AI-driven LLMs like ChatGPT for self-diagnosis

  doi:10.13140/RG.2.2.10788.04486
  [BibTeX] [Download PDF]

  @article{delong_du_exploring_2024,
  title = {Exploring patient trust in clinical advice from {AI}-driven {LLMs} like {ChatGPT} for self-diagnosis},
  url = {https://rgdoi.net/10.13140/RG.2.2.10788.04486},
  doi = {10.13140/RG.2.2.10788.04486},
  language = {en},
  urldate = {2024-02-12},
  author = {{Delong Du} and Paluch, Richard and Stevens, Gunnar and Müller, Claudia},
  year = {2024},
  note = {Publisher: Unpublished},
  }

• ---

  Shajalal, M., Bohlouli, M., Das, H. P., Boden, A. & Stevens, G. (2024)Improved Thermal Comfort Model Leveraging Conditional Tabular GAN Focusing on Feature Selection

  IN IEEE Access, Vol. 12, Pages: 30039–30053 doi:10.1109/ACCESS.2024.3366453
  [BibTeX] [Abstract] [Download PDF]

  The indoor thermal comfort in both homes and workplaces significantly influences the health and productivity of inhabitants. The heating system, controlled by Artificial Intelligence (AI), can automatically calibrate the indoor thermal condition by analyzing various physiological and environmental variables. To ensure a comfortable indoor environment, smart home systems can adjust parameters related to thermal comfort based on accurate predictions of inhabitants’ preferences. Modeling personal thermal comfort preferences poses two significant challenges: the inadequacy of data and its high dimensionality. An adequate amount of data is a prerequisite for training efficient machine learning (ML) models. Additionally, high-dimensional data tends to contain multiple irrelevant and noisy features, which might hinder ML models’ performance. To address these challenges, we propose a framework for predicting personal thermal comfort preferences, combining the conditional tabular generative adversarial network (CTGAN) with multiple feature selection techniques. We first address the data inadequacy challenge by applying CTGAN to generate synthetic data samples, incorporating challenges associated with multimodal distributions and categorical features. Then, multiple feature selection techniques are employed to identify the best possible sets of features. Experimental results based on a wide range of settings on a standard dataset demonstrated state-of-the-art performance in predicting personal thermal comfort preferences. The results also indicated that ML models trained on synthetic data achieved significantly better performance than models trained on real data. Overall, our method, combining CTGAN and feature selection techniques, outperformed existing known related work in thermal comfort prediction in terms of multiple evaluation metrics, including area under the curve (AUC), Cohen’s Kappa, and accuracy. Additionally, we presented a global, model-agnostic explanation of the thermal preference prediction system, providing an avenue for thermal comfort experiment designers to consciously select the data to be collected.

  @article{shajalal_improved_2024,
  title = {Improved {Thermal} {Comfort} {Model} {Leveraging} {Conditional} {Tabular} {GAN} {Focusing} on {Feature} {Selection}},
  volume = {12},
  issn = {2169-3536},
  url = {https://ieeexplore.ieee.org/document/10436645},
  doi = {10.1109/ACCESS.2024.3366453},
  abstract = {The indoor thermal comfort in both homes and workplaces significantly influences the health and productivity of inhabitants. The heating system, controlled by Artificial Intelligence (AI), can automatically calibrate the indoor thermal condition by analyzing various physiological and environmental variables. To ensure a comfortable indoor environment, smart home systems can adjust parameters related to thermal comfort based on accurate predictions of inhabitants’ preferences. Modeling personal thermal comfort preferences poses two significant challenges: the inadequacy of data and its high dimensionality. An adequate amount of data is a prerequisite for training efficient machine learning (ML) models. Additionally, high-dimensional data tends to contain multiple irrelevant and noisy features, which might hinder ML models’ performance. To address these challenges, we propose a framework for predicting personal thermal comfort preferences, combining the conditional tabular generative adversarial network (CTGAN) with multiple feature selection techniques. We first address the data inadequacy challenge by applying CTGAN to generate synthetic data samples, incorporating challenges associated with multimodal distributions and categorical features. Then, multiple feature selection techniques are employed to identify the best possible sets of features. Experimental results based on a wide range of settings on a standard dataset demonstrated state-of-the-art performance in predicting personal thermal comfort preferences. The results also indicated that ML models trained on synthetic data achieved significantly better performance than models trained on real data. Overall, our method, combining CTGAN and feature selection techniques, outperformed existing known related work in thermal comfort prediction in terms of multiple evaluation metrics, including area under the curve (AUC), Cohen’s Kappa, and accuracy. Additionally, we presented a global, model-agnostic explanation of the thermal preference prediction system, providing an avenue for thermal comfort experiment designers to consciously select the data to be collected.},
  urldate = {2024-03-04},
  journal = {IEEE Access},
  author = {Shajalal, Md. and Bohlouli, Milad and Das, Hari Prasanna and Boden, Alexander and Stevens, Gunnar},
  year = {2024},
  note = {Conference Name: IEEE Access},
  keywords = {machine learning, feature selection, Task analysis, Buildings, data inadequacy, Data models, Feature extraction, generative adversarial network, Generative adversarial networks, Human factors, Machine learning, Personal thermal comfort, Predictive models, Synthetic data, Thermal analysis},
  pages = {30039--30053},
  }

2023

• ---

  Hahn, A., Pakusch, C. & Stevens, G. (2023)The impact of service expansion on modal shift from private car to public transport. A quantitative analysis in the Bonn/Rhein-Sieg area, Germany

  IN Journal of Urban Mobility, Vol. 4, Pages: 100064 doi:10.1016/j.urbmob.2023.100064
  [BibTeX] [Abstract] [Download PDF]

  Vehicle emissions have been identified as a cause of air pollution and one of the major reasons why air quality in many large German cities such as Berlin, Bonn, Hamburg, Cologne or Munich does not meet EU-wide limits. As a result, in the recent past, judicial driving bans on diesel vehicles have been imposed in many places since those vehicles emit critical pollutant groups. For the increasing urban population, the challenge is whether and how a change of the modal split in favor of the more environmentally and climate-friendly public transport can be achieved. This paper presents the case of the Federal City of Bonn, one of five model cities sponsored by the German federal government that are testing measures to reduce traffic-related pollutant emissions by expanding the range of public transport services on offer. We present the results of a quantitative survey (N = 14,296) performed in the Bonn/Rhein-Sieg area and the neighboring municipalities as well as the ensuing logistic regressions confirming that a change in individual mobility behavior in favor of public transport is possible through expanding services. Our results show that individual traffic could be reduced, especially on the city’s main traffic axes. To sustainably improve air quality, such services must be made permanently available.

  @article{hahn_impact_2023,
  title = {The impact of service expansion on modal shift from private car to public transport. {A} quantitative analysis in the {Bonn}/{Rhein}-{Sieg} area, {Germany}},
  volume = {4},
  issn = {2667-0917},
  url = {https://www.sciencedirect.com/science/article/pii/S2667091723000201},
  doi = {10.1016/j.urbmob.2023.100064},
  abstract = {Vehicle emissions have been identified as a cause of air pollution and one of the major reasons why air quality in many large German cities such as Berlin, Bonn, Hamburg, Cologne or Munich does not meet EU-wide limits. As a result, in the recent past, judicial driving bans on diesel vehicles have been imposed in many places since those vehicles emit critical pollutant groups. For the increasing urban population, the challenge is whether and how a change of the modal split in favor of the more environmentally and climate-friendly public transport can be achieved. This paper presents the case of the Federal City of Bonn, one of five model cities sponsored by the German federal government that are testing measures to reduce traffic-related pollutant emissions by expanding the range of public transport services on offer. We present the results of a quantitative survey (N = 14,296) performed in the Bonn/Rhein-Sieg area and the neighboring municipalities as well as the ensuing logistic regressions confirming that a change in individual mobility behavior in favor of public transport is possible through expanding services. Our results show that individual traffic could be reduced, especially on the city's main traffic axes. To sustainably improve air quality, such services must be made permanently available.},
  urldate = {2023-10-04},
  journal = {Journal of Urban Mobility},
  author = {Hahn, Andreas and Pakusch, Christina and Stevens, Gunnar},
  month = dec,
  year = {2023},
  keywords = {Sustainability, Mobility, Modal shift, Public transport, Service expansion},
  pages = {100064},
  }

• ---

  Veisi, O., Du, D., Moradi, M. A., Guasselli, F. C., Athanasoulias, S., Syed, H. A., Müller, C. & Stevens, G. (2023)Designing SafeMap Based on City Infrastructure and Empirical Approach: Modified A-Star Algorithm for Earthquake Navigation Application

  Proceedings of the 1st ACM SIGSPATIAL International Workshop on Advances in Urban-AI. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 61–70 doi:10.1145/3615900.3628788
  [BibTeX] [Abstract] [Download PDF]

  Designing routing systems for earthquakes requires frontend usability studies and backend algorithm modifications. Evaluations from subject-matter experts can enhance the design of both the front-end interface and the back-end algorithm of urban artificial intelligence (AI). Urban AI applications need to be trustworthy, responsible, and reliable against earthquakes, by assisting civilians to identify safe and fast routes to safe areas or health support stations. However, routes may become dangerous or obstructed as regular routing applications may fail to adapt responsively to city destruction caused by earthquakes. In this study, we modified the A-star algorithm and designed an interactive mobile app with the evaluation and insights of subject-matter experts including 15 UX designers, 7 urbanists, 8 quake survivors, and 4 first responders. Our findings reveal reducing application features and quickening application use time is necessary for stressful earthquake situations, as emerging features such as augmented reality and voice assistant may negatively backlash user experience in earthquake scenarios due to over-immersion, distracting users from real world condition. Additionally, we utilized expert insights to modify the A-star algorithm for earthquake scenarios using the following steps: 1) create a dataset based on the roads; 2) establish an empty dataset for weight; 3) enable the updating of weight based on infrastructure; and 4) allow the alteration of weight based on safety, related to human behavior. Our study provides empirical evidence on why urban AI applications for earthquakes need to adapt to the rapid speed to use and elucidate how and why the A-star algorithm is optimized for earthquake scenarios.

  @inproceedings{veisi_designing_2023,
  address = {New York, NY, USA},
  series = {{UrbanAI} '23},
  title = {Designing {SafeMap} {Based} on {City} {Infrastructure} and {Empirical} {Approach}: {Modified} {A}-{Star} {Algorithm} for {Earthquake} {Navigation} {Application}},
  isbn = {9798400703621},
  shorttitle = {Designing {SafeMap} {Based} on {City} {Infrastructure} and {Empirical} {Approach}},
  url = {https://dl.acm.org/doi/10.1145/3615900.3628788},
  doi = {10.1145/3615900.3628788},
  abstract = {Designing routing systems for earthquakes requires frontend usability studies and backend algorithm modifications. Evaluations from subject-matter experts can enhance the design of both the front-end interface and the back-end algorithm of urban artificial intelligence (AI). Urban AI applications need to be trustworthy, responsible, and reliable against earthquakes, by assisting civilians to identify safe and fast routes to safe areas or health support stations. However, routes may become dangerous or obstructed as regular routing applications may fail to adapt responsively to city destruction caused by earthquakes. In this study, we modified the A-star algorithm and designed an interactive mobile app with the evaluation and insights of subject-matter experts including 15 UX designers, 7 urbanists, 8 quake survivors, and 4 first responders. Our findings reveal reducing application features and quickening application use time is necessary for stressful earthquake situations, as emerging features such as augmented reality and voice assistant may negatively backlash user experience in earthquake scenarios due to over-immersion, distracting users from real world condition. Additionally, we utilized expert insights to modify the A-star algorithm for earthquake scenarios using the following steps: 1) create a dataset based on the roads; 2) establish an empty dataset for weight; 3) enable the updating of weight based on infrastructure; and 4) allow the alteration of weight based on safety, related to human behavior. Our study provides empirical evidence on why urban AI applications for earthquakes need to adapt to the rapid speed to use and elucidate how and why the A-star algorithm is optimized for earthquake scenarios.},
  urldate = {2024-02-05},
  booktitle = {Proceedings of the 1st {ACM} {SIGSPATIAL} {International} {Workshop} on {Advances} in {Urban}-{AI}},
  publisher = {Association for Computing Machinery},
  author = {Veisi, Omid and Du, Delong and Moradi, Mohammad Amin and Guasselli, Fernanda Caroline and Athanasoulias, Sotiris and Syed, Hussain Abid and Müller, Claudia and Stevens, Gunnar},
  month = nov,
  year = {2023},
  keywords = {A-star algorithm, city infrastructure, earthquake, navigation, routing, user experience},
  pages = {61--70},
  }

• ---

  Recki, L., Esau-Held, M., Lawo, D. & Stevens, G. (2023)AI said, She said – How Users Perceive Consumer Scoring in Practice

  Proceedings of Mensch und Computer 2023. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 149–160 doi:10.1145/3603555.3603562
  [BibTeX] [Abstract] [Download PDF]

  As digitization continues, consumers are increasingly exposed to AI scoring decisions. However, currently lacking is a thorough understanding of how users’ misjudgments of an AI-supported system lead to it being rejected. Therefore, investigations are needed into the appropriation of such socio-technical systems in practice and how users describe their experience with algorithm-based scoring. To address this issue, we evaluated 1,003 user reviews of an app on car insurance that calculates premiums based on the consumers’ individual driving behavior. We find evidence that users develop their own folk theories to explain the algorithms with the help of situation-related experiences and that insufficient explanations lead to power asymmetries between consumers, the system, and the company. In particular, as a result of the different needs of the stakeholders, we uncover a fundamental conflict between computational risk assessment and the perceived agency to influence the score.

  @inproceedings{recki_ai_2023,
  address = {New York, NY, USA},
  series = {{MuC} '23},
  title = {{AI} said, {She} said - {How} {Users} {Perceive} {Consumer} {Scoring} in {Practice}},
  isbn = {9798400707711},
  url = {https://dl.acm.org/doi/10.1145/3603555.3603562},
  doi = {10.1145/3603555.3603562},
  abstract = {As digitization continues, consumers are increasingly exposed to AI scoring decisions. However, currently lacking is a thorough understanding of how users’ misjudgments of an AI-supported system lead to it being rejected. Therefore, investigations are needed into the appropriation of such socio-technical systems in practice and how users describe their experience with algorithm-based scoring. To address this issue, we evaluated 1,003 user reviews of an app on car insurance that calculates premiums based on the consumers’ individual driving behavior. We find evidence that users develop their own folk theories to explain the algorithms with the help of situation-related experiences and that insufficient explanations lead to power asymmetries between consumers, the system, and the company. In particular, as a result of the different needs of the stakeholders, we uncover a fundamental conflict between computational risk assessment and the perceived agency to influence the score.},
  urldate = {2023-09-04},
  booktitle = {Proceedings of {Mensch} und {Computer} 2023},
  publisher = {Association for Computing Machinery},
  author = {Recki, Lena and Esau-Held, Margarita and Lawo, Dennis and Stevens, Gunnar},
  month = sep,
  year = {2023},
  keywords = {Algorithmic Decision Making, Empirical study, Explainable AI, Fairness, Perception},
  pages = {149--160},
  }

• ---

  Engelbutzeder, P., Randell, D., Landwehr, M., Aal, K., Stevens, G. & Wulf, V. (2023)From Surplus and Scarcity toward Abundance: Understanding the Use of ICT in Food Resource Sharing Practices

  IN ACM Transactions on Computer-Human Interaction, Vol. 30, Pages: 80:1–80:31 doi:10.1145/3589957
  [BibTeX] [Abstract] [Download PDF]

  Food practices have become an important context for questions around sustainability. Within HCI, sustainable HCI and human-food-interaction have developed as a response. We argue, nevertheless, that food practices as a social activity remain relatively under-examined, and further that sustainable food practices hinge on communal activity. We present the results of action-oriented research with a grassroots movement committed to sustainable food practices at a local, communal level, thereby demonstrating the role of ICT in making food resource sharing a viable practice. We suggest that the current focus on food sharing might usefully be supplemented by attention to food resource sharing, an approach that aligns with a paradigm shift from surplus to abundance. We argue for a design that aims to encourage food resource sharing at a local level but that also has wider ramifications. These “glocal” endeavors recognize the complexity of prosumption practices and foster aspirations for “deep change” in food systems.

  @article{engelbutzeder_surplus_2023-1,
  title = {From {Surplus} and {Scarcity} toward {Abundance}: {Understanding} the {Use} of {ICT} in {Food} {Resource} {Sharing} {Practices}},
  volume = {30},
  issn = {1073-0516},
  shorttitle = {From {Surplus} and {Scarcity} toward {Abundance}},
  url = {https://dl.acm.org/doi/10.1145/3589957},
  doi = {10.1145/3589957},
  abstract = {Food practices have become an important context for questions around sustainability. Within HCI, sustainable HCI and human-food-interaction have developed as a response. We argue, nevertheless, that food practices as a social activity remain relatively under-examined, and further that sustainable food practices hinge on communal activity. We present the results of action-oriented research with a grassroots movement committed to sustainable food practices at a local, communal level, thereby demonstrating the role of ICT in making food resource sharing a viable practice. We suggest that the current focus on food sharing might usefully be supplemented by attention to food resource sharing, an approach that aligns with a paradigm shift from surplus to abundance. We argue for a design that aims to encourage food resource sharing at a local level but that also has wider ramifications. These “glocal” endeavors recognize the complexity of prosumption practices and foster aspirations for “deep change” in food systems.},
  number = {5},
  urldate = {2024-01-09},
  journal = {ACM Transactions on Computer-Human Interaction},
  author = {Engelbutzeder, Philip and Randell, Dave and Landwehr, Marvin and Aal, Konstantin and Stevens, Gunnar and Wulf, Volker},
  month = sep,
  year = {2023},
  keywords = {HFI, Sustainability, abundance, grassroots, sharing economy, surplus, sustainable HCI},
  pages = {80:1--80:31},
  }

• ---

  Weber, J., Esau-Held, M., Schiller, M., Thaden, E. M., Manstetten, D. & Stevens, G. (2023)Designing an Interaction Concept for Assisted Cooking in Smart Kitchens: Focus on Human Agency, Proactivity, and Multimodality

  Proceedings of the 2023 ACM Designing Interactive Systems Conference. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1128–1144 doi:10.1145/3563657.3595975
  [BibTeX] [Abstract] [Download PDF]

  Connected homes and smart assistants shape the future practices of humans, but they do not yet perfectly fit their needs and processes. Our research explores how smart assistants can effectively support users during cooking. First, we completed an observational study with ten participants to understand their needs for competence and autonomy in relation to their individual cooking. Following the empirical results, we prototyped a multimodal assistant that interactively provides stepwise guidance for a multi-part recipe. We evaluated the prototype in a Wizard-of-Oz approach with ten participants. The classification according to cooking competence and need for autonomy turned out to be an efficient way to understand the different user perspectives on the prototype. We could observe under which conditions users prefer graphical or voice interaction and how proactivity of the assistant affects human agency and derived general insights for the design and co-performance of smart assistants in other domains.

  @inproceedings{weber_designing_2023,
  address = {New York, NY, USA},
  series = {{DIS} '23},
  title = {Designing an {Interaction} {Concept} for {Assisted} {Cooking} in {Smart} {Kitchens}: {Focus} on {Human} {Agency}, {Proactivity}, and {Multimodality}},
  isbn = {978-1-4503-9893-0},
  shorttitle = {Designing an {Interaction} {Concept} for {Assisted} {Cooking} in {Smart} {Kitchens}},
  url = {https://dl.acm.org/doi/10.1145/3563657.3595975},
  doi = {10.1145/3563657.3595975},
  abstract = {Connected homes and smart assistants shape the future practices of humans, but they do not yet perfectly fit their needs and processes. Our research explores how smart assistants can effectively support users during cooking. First, we completed an observational study with ten participants to understand their needs for competence and autonomy in relation to their individual cooking. Following the empirical results, we prototyped a multimodal assistant that interactively provides stepwise guidance for a multi-part recipe. We evaluated the prototype in a Wizard-of-Oz approach with ten participants. The classification according to cooking competence and need for autonomy turned out to be an efficient way to understand the different user perspectives on the prototype. We could observe under which conditions users prefer graphical or voice interaction and how proactivity of the assistant affects human agency and derived general insights for the design and co-performance of smart assistants in other domains.},
  urldate = {2023-07-25},
  booktitle = {Proceedings of the 2023 {ACM} {Designing} {Interactive} {Systems} {Conference}},
  publisher = {Association for Computing Machinery},
  author = {Weber, Johanna and Esau-Held, Margarita and Schiller, Marvin and Thaden, Eike Martin and Manstetten, Dietrich and Stevens, Gunnar},
  month = jul,
  year = {2023},
  keywords = {human-food-interaction, intelligent personal assistants, multimodality, proactive IoT, qualitative study, smart home, smart kitchen},
  pages = {1128--1144},
  }

• ---

  Esau-Held, M., Marsh, A., Krauß, V. & Stevens, G. (2023)“Foggy sounds like nothing” — enriching the experience of voice assistants with sonic overlays

  IN Personal and Ubiquitous Computing doi:10.1007/s00779-023-01722-3
  [BibTeX] [Abstract] [Download PDF]

  Although Voice Assistants are ubiquitously available for some years now, the interaction is still monotonous and utilitarian. Sound design offers conceptual and methodological research to design auditive interfaces. Our work aims to complement and supplement voice interaction with sonic overlays to enrich the user experience. Therefore, we followed a user-centered design process to develop a sound library for weather forecasts based on empirical results from a user survey of associative mapping. After analyzing the data, we created audio clips for seven weather conditions and evaluated the perceived combination of sound and speech with 15 participants in an interview study. Our findings show that supplementing speech with soundscapes is a promising concept that communicates information and induces emotions with a positive affect for the user experience of Voice Assistants. Besides a novel design approach and a collection of sound overlays, we provide four design implications to support voice interaction designers.

  @article{esau-held_foggy_2023,
  title = {“{Foggy} sounds like nothing” — enriching the experience of voice assistants with sonic overlays},
  issn = {1617-4917},
  url = {https://doi.org/10.1007/s00779-023-01722-3},
  doi = {10.1007/s00779-023-01722-3},
  abstract = {Although Voice Assistants are ubiquitously available for some years now, the interaction is still monotonous and utilitarian. Sound design offers conceptual and methodological research to design auditive interfaces. Our work aims to complement and supplement voice interaction with sonic overlays to enrich the user experience. Therefore, we followed a user-centered design process to develop a sound library for weather forecasts based on empirical results from a user survey of associative mapping. After analyzing the data, we created audio clips for seven weather conditions and evaluated the perceived combination of sound and speech with 15 participants in an interview study. Our findings show that supplementing speech with soundscapes is a promising concept that communicates information and induces emotions with a positive affect for the user experience of Voice Assistants. Besides a novel design approach and a collection of sound overlays, we provide four design implications to support voice interaction designers.},
  language = {en},
  urldate = {2023-06-12},
  journal = {Personal and Ubiquitous Computing},
  author = {Esau-Held, Margarita and Marsh, Andrew and Krauß, Veronika and Stevens, Gunnar},
  month = jun,
  year = {2023},
  keywords = {User experience, User study, Empirical design, Sonification, Sound design, Voice assistants},
  }

• ---

  Berkholz, J. & Stevens, G. (2023)Virtuelle Stilberatung als Möglichkeit der Aufforderung zur Singularität

  [BibTeX] [Download PDF]

  @article{berkholz_virtuelle_2023,
  title = {Virtuelle {Stilberatung} als {Möglichkeit} der {Aufforderung} zur {Singularität}},
  url = {https://www.verbraucherforschung.nrw/sites/default/files/2023-04/jbkv-02-2022-04-berkholz-stevens-virtuelle-stilberatung-als-moeglichkeit-der-aufforderung-zur-singularitaet.pdf},
  author = {Berkholz, Jenny and Stevens, Gunnar},
  month = jun,
  year = {2023},
  }

• ---

  Pins, D., Jakobi, T., Stevens, G., Alizadeh, F. & Krüger, J. (2023)Finding, getting and understanding: The User Journey for the GDPR’S Right to Access

  IN , Vol. 41, Pages: 2174–2200
  [BibTeX] [Download PDF]

  @article{pins_finding_2023,
  title = {Finding, getting and understanding: {The} {User} {Journey} for the {GDPR}’{S} {Right} to {Access}},
  volume = {41},
  url = {https://www.researchgate.net/publication/370490058_Finding_getting_and_understanding_The_User_Journey_for_the_GDPR'S_Right_to_Access},
  author = {Pins, Domink and Jakobi, Timo and Stevens, Gunnar and Alizadeh, Fatemeh and Krüger, Jana},
  month = may,
  year = {2023},
  pages = {2174--2200},
  }

• ---

  Walther, M., Jakobi, T., Watson, S. J. & Stevens, G. (2023)A systematic literature review about the consumers’ side of fake review detection – Which cues do consumers use to determine the veracity of online user reviews?

  IN Computers in Human Behavior Reports, Vol. 10, Pages: 100278 doi:10.1016/j.chbr.2023.100278
  [BibTeX] [Abstract] [Download PDF]

  Background Consumers rely heavily on online user reviews when shopping online and cybercriminals produce fake reviews to manipulate consumer opinion. Much prior research focuses on the automated detection of these fake reviews, which are far from perfect. Therefore, consumers must be able to detect fake reviews on their own. In this study we survey the research examining how consumers detect fake reviews online. Methods We conducted a systematic literature review over the research on fake review detection from the consumer-perspective. We included academic literature giving new empirical data. We provide a narrative synthesis comparing the theories, methods and outcomes used across studies to identify how consumers detect fake reviews online. Results We found only 15 articles that met our inclusion criteria. We classify the most often used cues identified into five categories which were (1) review characteristics (2) textual characteristics (3) reviewer characteristics (4) seller characteristics and (5) characteristics of the platform where the review is displayed. Discussion We find that theory is applied inconsistently across studies and that cues to deception are often identified in isolation without any unifying theoretical framework. Consequently, we discuss how such a theoretical framework could be developed.

  @article{walther_systematic_2023,
  title = {A systematic literature review about the consumers’ side of fake review detection – {Which} cues do consumers use to determine the veracity of online user reviews?},
  volume = {10},
  issn = {2451-9588},
  url = {https://www.sciencedirect.com/science/article/pii/S2451958823000118},
  doi = {10.1016/j.chbr.2023.100278},
  abstract = {Background
  Consumers rely heavily on online user reviews when shopping online and cybercriminals produce fake reviews to manipulate consumer opinion. Much prior research focuses on the automated detection of these fake reviews, which are far from perfect. Therefore, consumers must be able to detect fake reviews on their own. In this study we survey the research examining how consumers detect fake reviews online.
  Methods
  We conducted a systematic literature review over the research on fake review detection from the consumer-perspective. We included academic literature giving new empirical data. We provide a narrative synthesis comparing the theories, methods and outcomes used across studies to identify how consumers detect fake reviews online.
  Results
  We found only 15 articles that met our inclusion criteria. We classify the most often used cues identified into five categories which were (1) review characteristics (2) textual characteristics (3) reviewer characteristics (4) seller characteristics and (5) characteristics of the platform where the review is displayed.
  Discussion
  We find that theory is applied inconsistently across studies and that cues to deception are often identified in isolation without any unifying theoretical framework. Consequently, we discuss how such a theoretical framework could be developed.},
  language = {en},
  urldate = {2023-03-02},
  journal = {Computers in Human Behavior Reports},
  author = {Walther, Michelle and Jakobi, Timo and Watson, Steven James and Stevens, Gunnar},
  month = may,
  year = {2023},
  keywords = {Fake review cues, Fake review detection, Human review fraud detection, Opinion scam, Review scam, User-perspective},
  pages = {100278},
  }

• ---

  Engelbutzeder, P., Randell, D., Landwehr, M., Aal, K., Stevens, G. & Wulf, V. (2023)From surplus and scarcity towards abundance: Understanding the use of ICT in food resource sharing practices

  IN ACM Transactions on Computer-Human Interaction doi:10.1145/3589957
  [BibTeX] [Abstract] [Download PDF]

  Food practices have become an important context for questions around sustainability. Within HCI, Sustainable HCI and Human-Food-Interaction have developed as a response. We argue, nevertheless, that food practices as a social activity remain relatively under-examined and further that sustainable food practices hinge on communal activity. We present the results of action-oriented research with a grassroots movement committed to sustainable food practices at a local, communal level, thereby demonstrating the role of ICT in making food resource sharing a viable practice. We suggest that the current focus on food sharing might usefully be supplemented by attention to food resource sharing, an approach that aligns with a paradigm shift from surplus to abundance. We argue for design that aims to encourage food resource sharing at a local level but that also has wider ramifications. These ‘glocal’ endeavors recognize the complexity of prosumption practices and foster aspirations for ‘deep change’ in food systems.

  @article{engelbutzeder_surplus_2023,
  title = {From surplus and scarcity towards abundance: {Understanding} the use of {ICT} in food resource sharing practices},
  issn = {1073-0516},
  shorttitle = {From surplus and scarcity towards abundance},
  url = {https://dl.acm.org/doi/10.1145/3589957},
  doi = {10.1145/3589957},
  abstract = {Food practices have become an important context for questions around sustainability. Within HCI, Sustainable HCI and Human-Food-Interaction have developed as a response. We argue, nevertheless, that food practices as a social activity remain relatively under-examined and further that sustainable food practices hinge on communal activity. We present the results of action-oriented research with a grassroots movement committed to sustainable food practices at a local, communal level, thereby demonstrating the role of ICT in making food resource sharing a viable practice. We suggest that the current focus on food sharing might usefully be supplemented by attention to food resource sharing, an approach that aligns with a paradigm shift from surplus to abundance. We argue for design that aims to encourage food resource sharing at a local level but that also has wider ramifications. These ‘glocal’ endeavors recognize the complexity of prosumption practices and foster aspirations for ‘deep change’ in food systems.},
  urldate = {2023-04-11},
  journal = {ACM Transactions on Computer-Human Interaction},
  author = {Engelbutzeder, Philip and Randell, Dave and Landwehr, Marvin and Aal, Konstantin and Stevens, Gunnar and Wulf, Volker},
  month = apr,
  year = {2023},
  note = {Just Accepted},
  keywords = {Abundance, Grassroots, HFI, Sharing Economy, Surplus, Sustainability, Sustainable HCI},
  }

• ---

  Lawo, D., Neifer, T., Esau-Held, M. & Stevens, G. (2023)Digital Sovereignty: What it is and why it matters for HCI

  Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1–7 doi:10.1145/3544549.3585834
  [BibTeX] [Abstract] [Download PDF]

  In recent years, digital sovereignty has become a central term in digital policy discourses. Both authoritarian and democratic states use digital sovereignty as a base for their digital policy, although, the individual interpretation and resulting policy and power balance might be quite different. Given the importance of this term, the HCI community and the users as the core of our research would benefit from taking up the discussion by finding own definitions of human-centred digital sovereignty, contributing to policy discourses, and to strengthening the position of users under non-sovereign conditions. This paper aims to initiate and provoke such discourse within the community by (1) introducing the policy term to HCI and providing an overview of how it is used, (2) arguing for the relevancy of the term, and (3) proposing possible ways forward.

  @inproceedings{lawo_digital_2023,
  address = {New York, NY, USA},
  series = {{CHI} {EA} '23},
  title = {Digital {Sovereignty}: {What} it is and why it matters for {HCI}},
  isbn = {978-1-4503-9422-2},
  shorttitle = {Digital {Sovereignty}},
  url = {https://dl.acm.org/doi/10.1145/3544549.3585834},
  doi = {10.1145/3544549.3585834},
  abstract = {In recent years, digital sovereignty has become a central term in digital policy discourses. Both authoritarian and democratic states use digital sovereignty as a base for their digital policy, although, the individual interpretation and resulting policy and power balance might be quite different. Given the importance of this term, the HCI community and the users as the core of our research would benefit from taking up the discussion by finding own definitions of human-centred digital sovereignty, contributing to policy discourses, and to strengthening the position of users under non-sovereign conditions. This paper aims to initiate and provoke such discourse within the community by (1) introducing the policy term to HCI and providing an overview of how it is used, (2) arguing for the relevancy of the term, and (3) proposing possible ways forward.},
  urldate = {2023-04-24},
  booktitle = {Extended {Abstracts} of the 2023 {CHI} {Conference} on {Human} {Factors} in {Computing} {Systems}},
  publisher = {Association for Computing Machinery},
  author = {Lawo, Dennis and Neifer, Thomas and Esau-Held, Margarita and Stevens, Gunnar},
  month = apr,
  year = {2023},
  keywords = {Privacy, Consumer Protection, Digital Sovereignty, Individual Empowerment, Policy},
  pages = {1--7},
  }

• ---

  Berkholz, J., Esau-Held, M., Boden, A., Stevens, G. & Tolmie, P. (2023)Becoming an Online Wine Taster: An Ethnographic Study on the Digital Mediation of Taste

  IN Proceedings of the ACM on Human-Computer Interaction, Vol. 7, Pages: 26:1–26:26 doi:10.1145/3579459
  [BibTeX] [Abstract] [Download PDF]

  There has been a growing interest in taste research in the HCI and CSCW communities. However, the focus is more on stimulating the senses, while the socio-cultural aspects have received less attention. However, individual taste perception is mediated through social interaction and collective negotiation and is not only dependent on physical stimulation. Therefore, we study the digital mediation of taste by drawing on ethnographic research of four online wine tastings and one self-organized event. Hence, we investigated the materials, associated meanings, competences, procedures, and engagements that shaped the performative character of tasting practices. We illustrate how the tastings are built around the taste-making process and how online contexts differ in providing a more diverse and distributed environment. We then explore the implications of our findings for the further mediation of taste as a social and democratized phenomenon through online interaction.

  @article{berkholz_becoming_2023,
  title = {Becoming an {Online} {Wine} {Taster}: {An} {Ethnographic} {Study} on the {Digital} {Mediation} of {Taste}},
  volume = {7},
  shorttitle = {Becoming an {Online} {Wine} {Taster}},
  url = {https://dl.acm.org/doi/10.1145/3579459},
  doi = {10.1145/3579459},
  abstract = {There has been a growing interest in taste research in the HCI and CSCW communities. However, the focus is more on stimulating the senses, while the socio-cultural aspects have received less attention. However, individual taste perception is mediated through social interaction and collective negotiation and is not only dependent on physical stimulation. Therefore, we study the digital mediation of taste by drawing on ethnographic research of four online wine tastings and one self-organized event. Hence, we investigated the materials, associated meanings, competences, procedures, and engagements that shaped the performative character of tasting practices. We illustrate how the tastings are built around the taste-making process and how online contexts differ in providing a more diverse and distributed environment. We then explore the implications of our findings for the further mediation of taste as a social and democratized phenomenon through online interaction.},
  number = {CSCW1},
  urldate = {2023-04-20},
  journal = {Proceedings of the ACM on Human-Computer Interaction},
  author = {Berkholz, Jenny and Esau-Held, Margarita and Boden, Alexander and Stevens, Gunnar and Tolmie, Peter},
  month = apr,
  year = {2023},
  keywords = {ethnography, practice theory, democratization, multi-sensory, taste, wine},
  pages = {26:1--26:26},
  }

• ---

  Alizadeh, F., Stevens, G., Jakobi, T. & Krüger, J. (2023)Catch Me if You Can : „Delaying“ as a Social Engineering Technique in the Post-Attack Phase

  IN Proceedings of the ACM on Human-Computer Interaction, Vol. 7, Pages: 32:1–32:25 doi:10.1145/3579465
  [BibTeX] [Abstract] [Download PDF]

  Much is known about social engineering strategies (SE) during the attack phase, but little is known about the post-attack period. To address this gap, we conducted 17 narrative interviews with victims of cyber fraud. We found that while it was seen to be important for victims to act immediately and to take countermeasures against attack, they often did not do so. In this paper, we describe this „delay“ in victims‘ responses as entailing a period of doubt and trust in good faith. The delay in victim response is a direct consequence of various SE techniques, such as exploiting prosocial behavior with subsequent negative effects on emotional state and interpersonal relationships. Our findings contribute to shaping digital resistance by helping people identify and overcome delay techniques to combat their inaction and paralysis.

  @article{alizadeh_catch_2023,
  title = {Catch {Me} if {You} {Can} : "{Delaying}" as a {Social} {Engineering} {Technique} in the {Post}-{Attack} {Phase}},
  volume = {7},
  shorttitle = {Catch {Me} if {You} {Can}},
  url = {https://dl.acm.org/doi/10.1145/3579465},
  doi = {10.1145/3579465},
  abstract = {Much is known about social engineering strategies (SE) during the attack phase, but little is known about the post-attack period. To address this gap, we conducted 17 narrative interviews with victims of cyber fraud. We found that while it was seen to be important for victims to act immediately and to take countermeasures against attack, they often did not do so. In this paper, we describe this "delay" in victims' responses as entailing a period of doubt and trust in good faith. The delay in victim response is a direct consequence of various SE techniques, such as exploiting prosocial behavior with subsequent negative effects on emotional state and interpersonal relationships. Our findings contribute to shaping digital resistance by helping people identify and overcome delay techniques to combat their inaction and paralysis.},
  number = {CSCW1},
  urldate = {2023-04-20},
  journal = {Proceedings of the ACM on Human-Computer Interaction},
  author = {Alizadeh, Fatemeh and Stevens, Gunnar and Jakobi, Timo and Krüger, Jana},
  month = apr,
  year = {2023},
  keywords = {comping strategies, cybercrime, digital resilience, post-attack, social computing, social engineering, usable security, user behavior, victim's vulnerabilities},
  pages = {32:1--32:25},
  }

• ---

  Berkholz, J., Esau, M. & Stevens, G. (2023)Digitale Geschmacksvermittlung: Work-in-Progress Studie zur Entwicklung eines Nutzer:innen-zentrierten Designs zur Steigerung der Konsumkompetenz

  IN Mau, G., Schuhen, M. & Froitzheim, M. (Eds.), Verbraucherforschung zwischen Empowerment und Verletzlichkeit: Verbraucherrelevante Zukunftsfragen aus der Perspektive der Wissenschaft und Praxis Wiesbaden doi:10.1007/978-3-658-41247-0_6
  [BibTeX] [Abstract] [Download PDF]

  Trotz der immer weiter wachsenden Nachfrage von Online-Shopping-Möglichkeiten, ist der digitale Einkauf von frischen Lebensmitteln für viele Verbraucher:innen wenig attraktiv. Neben grundsätzlichen Barrieren, die die Nutzung des E-Commerce betreffen, stellt die fehlende Möglichkeit die tatsächlichen Produkte zu sehen und anzufassen ein Hindernis dar. Durch unsere Work-in-Progress Studie konnten wir mit Hilfe zweier Fokusgruppen und der Methode der Zukunftswerkstatt herausfinden, wie ein alternativer Ansatz unter Einbezug der Verbraucher:innen gestaltet werden könnte. Aus den prototypischen Zeichnungen der Teilnehmer:innen wurde deutlich, dass die Aspekte der Personalisierung und Transparenz im Vordergrund für sie stehen. In der Umsetzung dieser Ideen sehen wir gleichwohl eine Möglichkeit die Konsumkompetenz zu stärken und Lebensmittelverschwendung vorzubeugen.

  @incollection{berkholz_digitale_2023,
  address = {Wiesbaden},
  title = {Digitale {Geschmacksvermittlung}: {Work}-in-{Progress} {Studie} zur {Entwicklung} eines {Nutzer}:innen-zentrierten {Designs} zur {Steigerung} der {Konsumkompetenz}},
  isbn = {978-3-658-41247-0},
  shorttitle = {Digitale {Geschmacksvermittlung}},
  url = {https://doi.org/10.1007/978-3-658-41247-0_6},
  abstract = {Trotz der immer weiter wachsenden Nachfrage von Online-Shopping-Möglichkeiten, ist der digitale Einkauf von frischen Lebensmitteln für viele Verbraucher:innen wenig attraktiv. Neben grundsätzlichen Barrieren, die die Nutzung des E-Commerce betreffen, stellt die fehlende Möglichkeit die tatsächlichen Produkte zu sehen und anzufassen ein Hindernis dar. Durch unsere Work-in-Progress Studie konnten wir mit Hilfe zweier Fokusgruppen und der Methode der Zukunftswerkstatt herausfinden, wie ein alternativer Ansatz unter Einbezug der Verbraucher:innen gestaltet werden könnte. Aus den prototypischen Zeichnungen der Teilnehmer:innen wurde deutlich, dass die Aspekte der Personalisierung und Transparenz im Vordergrund für sie stehen. In der Umsetzung dieser Ideen sehen wir gleichwohl eine Möglichkeit die Konsumkompetenz zu stärken und Lebensmittelverschwendung vorzubeugen.},
  language = {de},
  urldate = {2023-09-25},
  booktitle = {Verbraucherforschung zwischen {Empowerment} und {Verletzlichkeit}: {Verbraucherrelevante} {Zukunftsfragen} aus der {Perspektive} der {Wissenschaft} und {Praxis}},
  publisher = {Springer Fachmedien},
  author = {Berkholz, Jenny and Esau, Margarita and Stevens, Gunnar},
  editor = {Mau, Gunnar and Schuhen, Michael and Froitzheim, Manuel},
  year = {2023},
  doi = {10.1007/978-3-658-41247-0_6},
  pages = {65--77},
  }

• ---

  Lawo, D., Neifer, T., Esau, M. & Stevens, G. (2023)Human-Centred Digital Sovereignty: Explorative Conceptual Model and Ways Forward

  Computer-Human Interaction Research and Applications. Cham, Publisher: Springer Nature Switzerland, Pages: 84–103 doi:10.1007/978-3-031-49368-3_6
  [BibTeX] [Abstract]

  In recent years, both authoritarian and democratic states have started using the term digital sovereignty as a basis for their digital policies. Although the interpretations and resulting policies may differ, the autonomy and sovereignty of individuals and their communities are at stake. Current political discourses mainly focus on governmental and corporate actors and their aspirations to control the digital sphere. Given the importance of this term, scholars in our community have begun to engage with the discourse. However, there is still a lack of dissemination, coming with a lack of conceptual models to explain, explore, and research human-centred digital sovereignty. Inspired by claims for human-centred digital sovereignty, this paper takes up the discourse and creates an explorative conceptual model that aims to guide early research within HCI, support an understanding of the field, and helps to identify relevant cases. Moreover, we discuss key challenges and potential ways forward.

  @inproceedings{lawo_human-centred_2023,
  address = {Cham},
  series = {Communications in {Computer} and {Information} {Science}},
  title = {Human-{Centred} {Digital} {Sovereignty}: {Explorative} {Conceptual} {Model} and {Ways} {Forward}},
  isbn = {978-3-031-49368-3},
  shorttitle = {Human-{Centred} {Digital} {Sovereignty}},
  doi = {10.1007/978-3-031-49368-3_6},
  abstract = {In recent years, both authoritarian and democratic states have started using the term digital sovereignty as a basis for their digital policies. Although the interpretations and resulting policies may differ, the autonomy and sovereignty of individuals and their communities are at stake. Current political discourses mainly focus on governmental and corporate actors and their aspirations to control the digital sphere. Given the importance of this term, scholars in our community have begun to engage with the discourse. However, there is still a lack of dissemination, coming with a lack of conceptual models to explain, explore, and research human-centred digital sovereignty. Inspired by claims for human-centred digital sovereignty, this paper takes up the discourse and creates an explorative conceptual model that aims to guide early research within HCI, support an understanding of the field, and helps to identify relevant cases. Moreover, we discuss key challenges and potential ways forward.},
  language = {en},
  booktitle = {Computer-{Human} {Interaction} {Research} and {Applications}},
  publisher = {Springer Nature Switzerland},
  author = {Lawo, Dennis and Neifer, Thomas and Esau, Margarita and Stevens, Gunnar},
  editor = {da Silva, Hugo Plácido and Cipresso, Pietro},
  year = {2023},
  keywords = {Conceptual model, Digital sovereignty, Human autonomy},
  pages = {84--103},
  }

2022

• ---

  Shajalal, M., Bohlouli, M., Das, H. P., Boden, A. & Stevens, G. (2022)Focus on what matters: improved feature selection techniques for personal thermal comfort modelling

  Proceedings of the 9th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 496–499 doi:10.1145/3563357.3567406
  [BibTeX] [Abstract] [Download PDF]

  Occupants‘ personal thermal comfort (PTC) is indispensable for their well-being, physical and mental health, and work efficiency. Predicting PTC preferences in a smart home can be a prerequisite to adjusting the indoor temperature for providing a comfortable environment. In this research, we focus on identifying relevant features for predicting PTC preferences. We propose a machine learning-based predictive framework by employing supervised feature selection techniques. We apply two feature selection techniques to select the optimal sets of features to improve the thermal preference prediction performance. The experimental results on a public PTC dataset demonstrated the efficiency of the feature selection techniques that we have applied. In turn, our PTC prediction framework with feature selection techniques achieved state-of-the-art performance in terms of accuracy, Cohen’s kappa, and area under the curve (AUC), outperforming conventional methods.

  @inproceedings{shajalal_focus_2022,
  address = {New York, NY, USA},
  series = {{BuildSys} '22},
  title = {Focus on what matters: improved feature selection techniques for personal thermal comfort modelling},
  isbn = {978-1-4503-9890-9},
  shorttitle = {Focus on what matters},
  url = {https://doi.org/10.1145/3563357.3567406},
  doi = {10.1145/3563357.3567406},
  abstract = {Occupants' personal thermal comfort (PTC) is indispensable for their well-being, physical and mental health, and work efficiency. Predicting PTC preferences in a smart home can be a prerequisite to adjusting the indoor temperature for providing a comfortable environment. In this research, we focus on identifying relevant features for predicting PTC preferences. We propose a machine learning-based predictive framework by employing supervised feature selection techniques. We apply two feature selection techniques to select the optimal sets of features to improve the thermal preference prediction performance. The experimental results on a public PTC dataset demonstrated the efficiency of the feature selection techniques that we have applied. In turn, our PTC prediction framework with feature selection techniques achieved state-of-the-art performance in terms of accuracy, Cohen's kappa, and area under the curve (AUC), outperforming conventional methods.},
  urldate = {2022-12-13},
  booktitle = {Proceedings of the 9th {ACM} {International} {Conference} on {Systems} for {Energy}-{Efficient} {Buildings}, {Cities}, and {Transportation}},
  publisher = {Association for Computing Machinery},
  author = {Shajalal, Md and Bohlouli, Milad and Das, Hari Prasanna and Boden, Alexander and Stevens, Gunnar},
  month = dec,
  year = {2022},
  keywords = {machine learning, feature selection, thermal comfort modelling},
  pages = {496--499},
  }

• ---

  Esau, M., Lawo, D., Neifer, T., Stevens, G. & Boden, A. (2022)Trust your guts: fostering embodied knowledge and sustainable practices through voice interaction

  IN Personal and Ubiquitous Computing doi:10.1007/s00779-022-01695-9
  [BibTeX] [Abstract] [Download PDF]

  Despite various attempts to prevent food waste and motivate conscious food handling, household members find it difficult to correctly assess the edibility of food. With the rise of ambient voice assistants, we did a design case study to support households’ in situ decision-making process in collaboration with our voice agent prototype, Fischer Fritz. Therefore, we conducted 15 contextual inquiries to understand food practices at home. Furthermore, we interviewed six fish experts to inform the design of our voice agent on how to guide consumers and teach food literacy. Finally, we created a prototype and discussed with 15 consumers its impact and capability to convey embodied knowledge to the human that is engaged as sensor. Our design research goes beyond current Human-Food Interaction automation approaches by emphasizing the human-food relationship in technology design and demonstrating future complementary human-agent collaboration with the aim to increase humans’ competence to sense, think, and act.

  @article{esau_trust_2022,
  title = {Trust your guts: fostering embodied knowledge and sustainable practices through voice interaction},
  issn = {1617-4917},
  shorttitle = {Trust your guts},
  url = {https://doi.org/10.1007/s00779-022-01695-9},
  doi = {10.1007/s00779-022-01695-9},
  abstract = {Despite various attempts to prevent food waste and motivate conscious food handling, household members find it difficult to correctly assess the edibility of food. With the rise of ambient voice assistants, we did a design case study to support households’ in situ decision-making process in collaboration with our voice agent prototype, Fischer Fritz. Therefore, we conducted 15 contextual inquiries to understand food practices at home. Furthermore, we interviewed six fish experts to inform the design of our voice agent on how to guide consumers and teach food literacy. Finally, we created a prototype and discussed with 15 consumers its impact and capability to convey embodied knowledge to the human that is engaged as sensor. Our design research goes beyond current Human-Food Interaction automation approaches by emphasizing the human-food relationship in technology design and demonstrating future complementary human-agent collaboration with the aim to increase humans’ competence to sense, think, and act.},
  language = {en},
  urldate = {2022-12-01},
  journal = {Personal and Ubiquitous Computing},
  author = {Esau, Margarita and Lawo, Dennis and Neifer, Thomas and Stevens, Gunnar and Boden, Alexander},
  month = nov,
  year = {2022},
  keywords = {Voice assistants, Co-performance, Embodied knowledge, Food literacy, Food waste, Human-food interaction},
  }

• ---

  Shajalal, M., Boden, A. & Stevens, G. (2022)Explainable product backorder prediction exploiting CNN: Introducing explainable models in businesses

  IN Electronic Markets doi:10.1007/s12525-022-00599-z
  [BibTeX] [Abstract] [Download PDF]

  Due to expected positive impacts on business, the application of artificial intelligence has been widely increased. The decision-making procedures of those models are often complex and not easily understandable to the company’s stakeholders, i.e. the people having to follow up on recommendations or try to understand automated decisions of a system. This opaqueness and black-box nature might hinder adoption, as users struggle to make sense and trust the predictions of AI models. Recent research on eXplainable Artificial Intelligence (XAI) focused mainly on explaining the models to AI experts with the purpose of debugging and improving the performance of the models. In this article, we explore how such systems could be made explainable to the stakeholders. For doing so, we propose a new convolutional neural network (CNN)-based explainable predictive model for product backorder prediction in inventory management. Backorders are orders that customers place for products that are currently not in stock. The company now takes the risk to produce or acquire the backordered products while in the meantime, customers can cancel their orders if that takes too long, leaving the company with unsold items in their inventory. Hence, for their strategic inventory management, companies need to make decisions based on assumptions. Our argument is that these tasks can be improved by offering explanations for AI recommendations. Hence, our research investigates how such explanations could be provided, employing Shapley additive explanations to explain the overall models’ priority in decision-making. Besides that, we introduce locally interpretable surrogate models that can explain any individual prediction of a model. The experimental results demonstrate effectiveness in predicting backorders in terms of standard evaluation metrics and outperform known related works with AUC 0.9489. Our approach demonstrates how current limitations of predictive technologies can be addressed in the business domain.

  @article{shajalal_explainable_2022,
  title = {Explainable product backorder prediction exploiting {CNN}: {Introducing} explainable models in businesses},
  issn = {1422-8890},
  shorttitle = {Explainable product backorder prediction exploiting {CNN}},
  url = {https://doi.org/10.1007/s12525-022-00599-z},
  doi = {10.1007/s12525-022-00599-z},
  abstract = {Due to expected positive impacts on business, the application of artificial intelligence has been widely increased. The decision-making procedures of those models are often complex and not easily understandable to the company’s stakeholders, i.e. the people having to follow up on recommendations or try to understand automated decisions of a system. This opaqueness and black-box nature might hinder adoption, as users struggle to make sense and trust the predictions of AI models. Recent research on eXplainable Artificial Intelligence (XAI) focused mainly on explaining the models to AI experts with the purpose of debugging and improving the performance of the models. In this article, we explore how such systems could be made explainable to the stakeholders. For doing so, we propose a new convolutional neural network (CNN)-based explainable predictive model for product backorder prediction in inventory management. Backorders are orders that customers place for products that are currently not in stock. The company now takes the risk to produce or acquire the backordered products while in the meantime, customers can cancel their orders if that takes too long, leaving the company with unsold items in their inventory. Hence, for their strategic inventory management, companies need to make decisions based on assumptions. Our argument is that these tasks can be improved by offering explanations for AI recommendations. Hence, our research investigates how such explanations could be provided, employing Shapley additive explanations to explain the overall models’ priority in decision-making. Besides that, we introduce locally interpretable surrogate models that can explain any individual prediction of a model. The experimental results demonstrate effectiveness in predicting backorders in terms of standard evaluation metrics and outperform known related works with AUC 0.9489. Our approach demonstrates how current limitations of predictive technologies can be addressed in the business domain.},
  language = {en},
  urldate = {2022-11-14},
  journal = {Electronic Markets},
  author = {Shajalal, Md and Boden, Alexander and Stevens, Gunnar},
  month = nov,
  year = {2022},
  keywords = {Backorder prediction, C80, CNN, eXplainable artificial intelligence (XAI), Global explanation, Local explanation, M1, M15, O33},
  }

• ---

  Alizadeh, F., Mniestri, A. & Stevens, G. (2022)Does Anyone Dream of Invisible A.I.? A Critique of the Making Invisible of A.I. Policing

  Nordic Human-Computer Interaction Conference. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1–6 doi:10.1145/3546155.3547282
  [BibTeX] [Abstract] [Download PDF]

  For most people, using their body to authenticate their identity is an integral part of daily life. From our fingerprints to our facial features, our physical characteristics store the information that identifies us as „us.“ This biometric information is becoming increasingly vital to the way we access and use technology. As more and more platform operators struggle with traffic from malicious bots on their servers, the burden of proof is on users, only this time they have to prove their very humanity and there is no court or jury to judge, but an invisible algorithmic system. In this paper, we critique the invisibilization of artificial intelligence policing. We argue that this practice obfuscates the underlying process of biometric verification. As a result, the new „invisible“ tests leave no room for the user to question whether the process of questioning is even fair or ethical. We challenge this thesis by offering a juxtaposition with the science fiction imagining of the Turing test in Blade Runner to reevaluate the ethical grounds for reverse Turing tests, and we urge the research community to pursue alternative routes of bot identification that are more transparent and responsive.

  @inproceedings{alizadeh_does_2022,
  address = {New York, NY, USA},
  series = {{NordiCHI} '22},
  title = {Does {Anyone} {Dream} of {Invisible} {A}.{I}.? {A} {Critique} of the {Making} {Invisible} of {A}.{I}. {Policing}},
  isbn = {978-1-4503-9699-8},
  shorttitle = {Does {Anyone} {Dream} of {Invisible} {A}.{I}.?},
  url = {https://doi.org/10.1145/3546155.3547282},
  doi = {10.1145/3546155.3547282},
  abstract = {For most people, using their body to authenticate their identity is an integral part of daily life. From our fingerprints to our facial features, our physical characteristics store the information that identifies us as "us." This biometric information is becoming increasingly vital to the way we access and use technology. As more and more platform operators struggle with traffic from malicious bots on their servers, the burden of proof is on users, only this time they have to prove their very humanity and there is no court or jury to judge, but an invisible algorithmic system. In this paper, we critique the invisibilization of artificial intelligence policing. We argue that this practice obfuscates the underlying process of biometric verification. As a result, the new "invisible" tests leave no room for the user to question whether the process of questioning is even fair or ethical. We challenge this thesis by offering a juxtaposition with the science fiction imagining of the Turing test in Blade Runner to reevaluate the ethical grounds for reverse Turing tests, and we urge the research community to pursue alternative routes of bot identification that are more transparent and responsive.},
  urldate = {2022-10-04},
  booktitle = {Nordic {Human}-{Computer} {Interaction} {Conference}},
  publisher = {Association for Computing Machinery},
  author = {Alizadeh, Fatemeh and Mniestri, Aikaterini and Stevens, Gunnar},
  month = oct,
  year = {2022},
  keywords = {Biometric data, Invisible AI, reCAPTCHA, Verification systems, Voight-Kampff test},
  pages = {1--6},
  }

• ---

  Naveed, S., Stevens, G. & Kern, D. (2022)Explainable Robo-Advisors: Empirical Investigations to Specify and Evaluate a User-Centric Taxonomy of Explanations in the Financial Domain

  Proceedings of the 9th Joint Workshop on Interfaces and Human Decision Making for Recommender Systems co-located with 16th ACM Conference on Recommender Systems (RecSys 2022). Seattle, USA, Pages: 85–103
  [BibTeX] [Abstract] [Download PDF]

  Even though Recommender Systems (RS) have been widely applied in various financial domains such as Robo-advisors (RA), these systems still operate as a black box with no or limited explanations. Even in cases, where explanations are provided, such systems are mostly designed from the developers’ perspective where the user needs and perspective of explanations are not taken into account. In this work, we aim to address the challenges of designing eXplainable Robo-Advisors (XRA) – by adopting a user-centric methodology. For this purpose, we applied a mixed-method approach, in whichwe conducted three qualitative focus group discussions (FGD) and supplemented the results with a quantitative survey insight. More specifically, we made two major contributions: 1) We extended the existing explanation categories to contextualize it for the financial domain – by identifying the user’s specific needs for explainability in the context of the financial domain, 2) We quantified the user preferences of specific explanations with regard to the financial domain and explainable RA – by evaluating the user’s personal relevance (PRE) and perceived quality (PQE) of explanations.

  @inproceedings{naveed_explainable_2022,
  address = {Seattle, USA},
  title = {Explainable {Robo}-{Advisors}: {Empirical} {Investigations} to {Specify} and {Evaluate} a {User}-{Centric} {Taxonomy} of {Explanations} in the {Financial} {Domain}},
  volume = {3222},
  url = {http://ceur-ws.org/Vol-3222/paper6.pdf},
  abstract = {Even though Recommender Systems (RS) have been widely applied in various financial domains such as Robo-advisors (RA), these systems still operate as a black box with no or limited explanations. Even in cases, where explanations are provided, such systems are mostly designed from the developers’ perspective where the user needs and perspective of explanations are not taken into account. In this work, we aim to address the challenges of designing eXplainable Robo-Advisors (XRA) – by adopting a user-centric methodology. For this purpose, we applied a mixed-method approach, in whichwe conducted three qualitative focus group discussions (FGD) and supplemented the results with a quantitative survey insight. More specifically, we made two major contributions: 1) We extended the existing explanation categories to contextualize it for the financial domain – by identifying the user’s specific needs for explainability in the context of the financial domain, 2) We quantified the user preferences of specific explanations with regard to the financial domain and explainable RA – by evaluating the user’s personal relevance (PRE) and perceived quality (PQE) of explanations.},
  booktitle = {Proceedings of the 9th {Joint} {Workshop} on {Interfaces} and {Human} {Decision} {Making} for {Recommender} {Systems} co-located with 16th {ACM} {Conference} on {Recommender} {Systems} ({RecSys} 2022)},
  author = {Naveed, Sidra and Stevens, Gunnar and Kern, Dean-Robin},
  month = sep,
  year = {2022},
  pages = {85--103},
  }

• ---

  Berkholz, J., Esau-Held, M. & Stevens, G. (2022)Negotiating Taste for Digital Depiction: Aligning Individual Concepts of Taste Perception in a Co-Design Process

  IN Mensch und Computer 2022 – Tagungsband doi:10.1145/3543758.3543781
  [BibTeX] [Abstract] [Download PDF]

  Taste is a complex phenomenon that depends on the individual experience and is a matter of collective negotiation and mediation. On the contrary, it is uncommon to include taste and its many facets in everyday design, particularly online shopping for fresh food products. To realize this unused potential, we conducted two Co-Design workshops. Based on the participants’ results in the workshops, we prototyped and evaluated a click-dummy smartphone app to explore consumers’ needs for digital taste depiction. We found that emphasizing the natural qualities of food products, external reviews, and personalizing features lead to a reflection on the individual taste experience. The self-reflection through our design enables consumers to develop their taste competencies and thus strengthen their autonomy in decision-making. Ultimately, exploring taste as a social experience adds to a broader understanding of taste beyond a sensory phenomenon.

  @article{berkholz_negotiating_2022,
  title = {Negotiating {Taste} for {Digital} {Depiction}: {Aligning} {Individual} {Concepts} of {Taste} {Perception} in a {Co}-{Design} {Process}},
  shorttitle = {Negotiating {Taste} for {Digital} {Depiction}},
  url = {http://dl.gi.de/handle/20.500.12116/39209},
  doi = {10.1145/3543758.3543781},
  abstract = {Taste is a complex phenomenon that depends on the individual experience and is a matter of collective negotiation and mediation. On the contrary, it is uncommon to include taste and its many facets in everyday design, particularly online shopping for fresh food products. To realize this unused potential, we conducted two Co-Design workshops. Based on the participants’ results in the workshops, we prototyped and evaluated a click-dummy smartphone app to explore consumers’ needs for digital taste depiction. We found that emphasizing the natural qualities of food products, external reviews, and personalizing features lead to a reflection on the individual taste experience. The self-reflection through our design enables consumers to develop their taste competencies and thus strengthen their autonomy in decision-making. Ultimately, exploring taste as a social experience adds to a broader understanding of taste beyond a sensory phenomenon.},
  language = {en},
  urldate = {2022-09-12},
  journal = {Mensch und Computer 2022 - Tagungsband},
  author = {Berkholz, Jenny and Esau-Held, Margarita and Stevens, Gunnar},
  month = sep,
  year = {2022},
  note = {Accepted: 2022-08-31T09:42:52Z
  Publisher: ACM},
  }

• ---

  von Grafenstein, M., Jakobi, T. & Stevens, G. (2022)Effective data protection by design through interdisciplinary research methods: The example of effective purpose specification by applying user-Centred UX-design methods

  IN Computer Law & Security Review, Vol. 46, Pages: 105722 doi:10.1016/j.clsr.2022.105722
  [BibTeX] [Abstract] [Download PDF]

  While the recent discussion on Art. 25 GDPR often considers the approach of data protection by design as an innovative idea, the notion of making data protection law more effective through requiring the data controller to implement the legal norms into the processing design is almost as old as the data protection debate. However, there is another, more recent shift in establishing the data protection by design approach through law, which is not yet understood to its fullest extent in the debate. Art. 25 GDPR requires the controller to not only implement the legal norms into the processing design but to do so in an effective manner. By explicitly declaring the effectiveness of the protection measures to be the legally required result, the legislator inevitably raises the question of which methods can be used to test and assure such efficacy. In our opinion, extending the legal compatibility assessment to the real effects of the required measures opens this approach to interdisciplinary methodologies. In this paper, we first summarise the current state of research on the methodology established in Art. 25 sect. 1 GDPR, and pinpoint some of the challenges of incorporating interdisciplinary research methodologies. On this premise, we present an empirical research methodology and first findings which offer one approach to answering the question on how to specify processing purposes effectively. Lastly, we discuss the implications of these findings for the legal interpretation of Art. 25 GDPR and related provisions, especially with respect to a more effective implementation of transparency and consent, and provide an outlook on possible next research steps.

  @article{von_grafenstein_effective_2022,
  title = {Effective data protection by design through interdisciplinary research methods: {The} example of effective purpose specification by applying user-{Centred} {UX}-design methods},
  volume = {46},
  issn = {0267-3649},
  shorttitle = {Effective data protection by design through interdisciplinary research methods},
  url = {https://www.sciencedirect.com/science/article/pii/S026736492200067X},
  doi = {10.1016/j.clsr.2022.105722},
  abstract = {While the recent discussion on Art. 25 GDPR often considers the approach of data protection by design as an innovative idea, the notion of making data protection law more effective through requiring the data controller to implement the legal norms into the processing design is almost as old as the data protection debate. However, there is another, more recent shift in establishing the data protection by design approach through law, which is not yet understood to its fullest extent in the debate. Art. 25 GDPR requires the controller to not only implement the legal norms into the processing design but to do so in an effective manner. By explicitly declaring the effectiveness of the protection measures to be the legally required result, the legislator inevitably raises the question of which methods can be used to test and assure such efficacy. In our opinion, extending the legal compatibility assessment to the real effects of the required measures opens this approach to interdisciplinary methodologies. In this paper, we first summarise the current state of research on the methodology established in Art. 25 sect. 1 GDPR, and pinpoint some of the challenges of incorporating interdisciplinary research methodologies. On this premise, we present an empirical research methodology and first findings which offer one approach to answering the question on how to specify processing purposes effectively. Lastly, we discuss the implications of these findings for the legal interpretation of Art. 25 GDPR and related provisions, especially with respect to a more effective implementation of transparency and consent, and provide an outlook on possible next research steps.},
  language = {en},
  urldate = {2022-08-12},
  journal = {Computer Law \& Security Review},
  author = {von Grafenstein, Max and Jakobi, Timo and Stevens, Gunnar},
  month = sep,
  year = {2022},
  keywords = {HCI, GDPR, Data protection by design, Effective purpose specification, UXD},
  pages = {105722},
  }

• ---

  Böhm, L., Peters, F., Bossauer, P., Lawo, D., Pakusch, C. & Stevens, G. (2022)Designing a Mobility Intelligence System for Decision-making with Shared Mobility Data

  , Publisher: IEEE Computer Society, Pages: 53–64 doi:10.1109/ICT4S55073.2022.00017
  [BibTeX] [Abstract] [Download PDF]

  Shared mobility has the potential to become an important driver for sustainable mobility. However, the rapid growth of services in already congested urban areas presents cities with major challenges. It becomes apparent that cities lack tools to manage mobility across all shared mobility services. We propose a mobility intelligence system for cities to leverage the vast amounts of data generated by shared fleets for decision-making. The system is designed to support cities in monitoring, regulating, and optimizing shared mobility. A dashboard provides access to data across all different services. Besides tools for regulating providers, e.g., with no-parking zones, we also provide access to mobility-specific machine learning methods, such as demand prediction. We rely on open source standards for data sharing between cities and providers to facilitate collaboration. The system is designed and implemented as a prototype based on requirements from discussions with cities, public transport agencies, and mobility researchers. As part of the evaluation, eight shared mobility experts tested the system. The results validate the system&\#x2019;s usability for three task scenarios while also revealing potential for future research and development.

  @inproceedings{bohm_designing_2022,
  title = {Designing a {Mobility} {Intelligence} {System} for {Decision}-making with {Shared} {Mobility} {Data}},
  isbn = {978-1-66548-286-8},
  url = {https://www.computer.org/csdl/proceedings-article/ict4s/2022/828600a053/1F8zr9UJ8Qg},
  doi = {10.1109/ICT4S55073.2022.00017},
  abstract = {Shared mobility has the potential to become an important driver for sustainable mobility. However, the rapid growth of services in already congested urban areas presents cities with major challenges. It becomes apparent that cities lack tools to manage mobility across all shared mobility services. We propose a mobility intelligence system for cities to leverage the vast amounts of data generated by shared fleets for decision-making. The system is designed to support cities in monitoring, regulating, and optimizing shared mobility. A dashboard provides access to data across all different services. Besides tools for regulating providers, e.g., with no-parking zones, we also provide access to mobility-specific machine learning methods, such as demand prediction. We rely on open source standards for data sharing between cities and providers to facilitate collaboration. The system is designed and implemented as a prototype based on requirements from discussions with cities, public transport agencies, and mobility researchers. As part of the evaluation, eight shared mobility experts tested the system. The results validate the system\&\#x2019;s usability for three task scenarios while also revealing potential for future research and development.},
  language = {English},
  urldate = {2022-08-09},
  publisher = {IEEE Computer Society},
  author = {Böhm, Lukas and Peters, Felix and Bossauer, Paul and Lawo, Dennis and Pakusch, Christina and Stevens, Gunnar},
  month = jun,
  year = {2022},
  pages = {53--64},
  }

• ---

  Shajalal, M., Boden, A. & Stevens, G. (2022)Towards user-centered explainable energy demand forecasting systems

  Proceedings of the Thirteenth ACM International Conference on Future Energy Systems. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 446–447 doi:10.1145/3538637.3538877
  [BibTeX] [Abstract] [Download PDF]

  In recent years, eXplainable Artificial Intelligence (XAI) has received huge attention in the area of explaining the decision-making processes of machine learning models. The aim is to increase the acceptance, trust, and transparency of AI models by providing explanations about the models‘ decisions. But most of the prior works on XAI are focused to support AI practitioners and developers in understanding and debugging. In this paper, we propose a user-centered explainable energy demand prediction and forecasting system that aims to provide explanations to end-users in the smart home. In doing so, we present an overview of the explainable system and propose a method combining Deep Learning Important FeaTures (DeepLIFT) and Shapley Additive Explanations (SHAP) to explain the prediction of an LSTM-based energy forecasting model.

  @inproceedings{shajalal_towards_2022,
  address = {New York, NY, USA},
  series = {e-{Energy} '22},
  title = {Towards user-centered explainable energy demand forecasting systems},
  isbn = {978-1-4503-9397-3},
  url = {https://doi.org/10.1145/3538637.3538877},
  doi = {10.1145/3538637.3538877},
  abstract = {In recent years, eXplainable Artificial Intelligence (XAI) has received huge attention in the area of explaining the decision-making processes of machine learning models. The aim is to increase the acceptance, trust, and transparency of AI models by providing explanations about the models' decisions. But most of the prior works on XAI are focused to support AI practitioners and developers in understanding and debugging. In this paper, we propose a user-centered explainable energy demand prediction and forecasting system that aims to provide explanations to end-users in the smart home. In doing so, we present an overview of the explainable system and propose a method combining Deep Learning Important FeaTures (DeepLIFT) and Shapley Additive Explanations (SHAP) to explain the prediction of an LSTM-based energy forecasting model.},
  urldate = {2022-06-27},
  booktitle = {Proceedings of the {Thirteenth} {ACM} {International} {Conference} on {Future} {Energy} {Systems}},
  publisher = {Association for Computing Machinery},
  author = {Shajalal, Md and Boden, Alexander and Stevens, Gunnar},
  month = jun,
  year = {2022},
  keywords = {DeepLIFT, explainable energy demand forecasting, human-centered explanation, LSTM, shapely additive explanation},
  pages = {446--447},
  }

• ---

  Esau, M., Krauß, V., Lawo, D. & Stevens, G. (2022)Losing Its Touch: Understanding User Perception of Multimodal Interaction and Smart Assistance

  Designing Interactive Systems Conference. Virtual Event Australia, Publisher: ACM, Pages: 1288–1299 doi:10.1145/3532106.3533455
  [BibTeX] [Abstract] [Download PDF]

  Intelligent Personal Assistants (IPA) are advertised as reliable companions in the everyday life to simplify household tasks. Due to speech-based usability issues, users struggle to deeply engage with current systems. The capabilities of newer generations of standalone devices are even extended by a display, also to address some weaknesses like memorizing auditive information. So far, it is unclear how the potential of a multimodal experience is realized by designers and appropriated by users. Therefore, we observed 20 participants in a controlled setting, planning a dinner with the help of an audio-visual-based IPA, namely Alexa Echo Show. Our study reveals ambiguous mental models of perceived and experienced device capabilities, leading to confusion. Meanwhile, the additional visual output channel could not counterbalance the weaknesses of voice interaction. Finally, we aim to illustrate users’ conceptual understandings of IPAs and provide implications to rethink audiovisual output for voice-frst standalone devices.

  @inproceedings{esau_losing_2022,
  address = {Virtual Event Australia},
  title = {Losing {Its} {Touch}: {Understanding} {User} {Perception} of {Multimodal} {Interaction} and {Smart} {Assistance}},
  isbn = {978-1-4503-9358-4},
  shorttitle = {Losing {Its} {Touch}},
  url = {https://dl.acm.org/doi/10.1145/3532106.3533455},
  doi = {10.1145/3532106.3533455},
  abstract = {Intelligent Personal Assistants (IPA) are advertised as reliable companions in the everyday life to simplify household tasks. Due to speech-based usability issues, users struggle to deeply engage with current systems. The capabilities of newer generations of standalone devices are even extended by a display, also to address some weaknesses like memorizing auditive information. So far, it is unclear how the potential of a multimodal experience is realized by designers and appropriated by users. Therefore, we observed 20 participants in a controlled setting, planning a dinner with the help of an audio-visual-based IPA, namely Alexa Echo Show. Our study reveals ambiguous mental models of perceived and experienced device capabilities, leading to confusion. Meanwhile, the additional visual output channel could not counterbalance the weaknesses of voice interaction. Finally, we aim to illustrate users’ conceptual understandings of IPAs and provide implications to rethink audiovisual output for voice-frst standalone devices.},
  language = {en},
  urldate = {2022-06-20},
  booktitle = {Designing {Interactive} {Systems} {Conference}},
  publisher = {ACM},
  author = {Esau, Margarita and Krauß, Veronika and Lawo, Dennis and Stevens, Gunnar},
  month = jun,
  year = {2022},
  pages = {1288--1299},
  }

• ---

  Golchinfar, D., Vaziri, D. D., Stevens, G. & Schreiber, D. (2022)Let’s Go to the Mall: Investigating the Role of User Experience in Customers’ Intention to Use Social Robots in a Shopping Mall

  Designing Interactive Systems Conference. Virtual Event Australia, Publisher: ACM, Pages: 377–386 doi:10.1145/3532106.3533490
  [BibTeX] [Abstract] [Download PDF]

  Aim of this study is to investigate the efects of user experience (UX) on shopping mall customers’ intention to use a social robot. Therefore, we used a Wizard of Oz approach that enabled data collection in situ. Quantitative data was obtained from a questionnaire completed by shopping mall customers who interacted with a social robot. Data was used in a regression analysis, where user experience factors served as predictors for robot use in retail. The regression model explains up to 23.2\% of the variance in customers’ intention to use a social robot. In addition, we collected qualitative data on human-robot-interactions and used the data to complement the interpretation of statistical results. Our fndings suggest that only hedonic qualities signifcantly contribute to the prediction of customers’ intention, that shopping mall customers are reluctant to grant pragmatic qualities to social robots, and that UX evaluation in HRI requires additional predictors.

  @inproceedings{golchinfar_lets_2022,
  address = {Virtual Event Australia},
  title = {Let's {Go} to the {Mall}: {Investigating} the {Role} of {User} {Experience} in {Customers}’ {Intention} to {Use} {Social} {Robots} in a {Shopping} {Mall}},
  isbn = {978-1-4503-9358-4},
  shorttitle = {Let's {Go} to the {Mall}},
  url = {https://dl.acm.org/doi/10.1145/3532106.3533490},
  doi = {10.1145/3532106.3533490},
  abstract = {Aim of this study is to investigate the efects of user experience (UX) on shopping mall customers’ intention to use a social robot. Therefore, we used a Wizard of Oz approach that enabled data collection in situ. Quantitative data was obtained from a questionnaire completed by shopping mall customers who interacted with a social robot. Data was used in a regression analysis, where user experience factors served as predictors for robot use in retail. The regression model explains up to 23.2\% of the variance in customers’ intention to use a social robot. In addition, we collected qualitative data on human-robot-interactions and used the data to complement the interpretation of statistical results. Our fndings suggest that only hedonic qualities signifcantly contribute to the prediction of customers’ intention, that shopping mall customers are reluctant to grant pragmatic qualities to social robots, and that UX evaluation in HRI requires additional predictors.},
  language = {en},
  urldate = {2022-06-20},
  booktitle = {Designing {Interactive} {Systems} {Conference}},
  publisher = {ACM},
  author = {Golchinfar, David and Vaziri, Daryoush Daniel and Stevens, Gunnar and Schreiber, Dirk},
  month = jun,
  year = {2022},
  pages = {377--386},
  }

• ---

  Pins, D., Jakobi, T., Stevens, G., Alizadeh, F. & Krüger, J. (2022)Finding, getting and understanding: the user journey for the GDPR’S right to access

  IN Behaviour & Information Technology, Pages: 1–27 doi:10.1080/0144929X.2022.2074894
  [BibTeX] [Abstract] [Download PDF]

  In both data protection law and research of usable privacy, awareness and control over the collection and use of personal data are understood to be cornerstones of digital sovereignty. For example, the European General Data Protection Regulation (GDPR) provides data subjects with the right to access data collected by organisations but remains unclear on the concrete process design. However, the design of data subject rights is crucial when it comes to the ability of customers to exercise their right and fulfil regulatory aims such as transparency. To learn more about user needs in implementing the right to access as per GDPR, we conducted a two-step study. First, we defined a five-phase user experience journey regarding the right to access: finding, authentication, request, access and data use. Second, and based on this model, 59 participants exercised their right to access and evaluated the usability of each phase. Drawing on 422 datasets spanning 139 organisations, our results show several interdependencies of process design and user satisfaction. Thereby, our insights inform the community of usable privacy and especially the design of the right to access with a first, yet robust, empirical body.

  @article{pins_finding_2022,
  title = {Finding, getting and understanding: the user journey for the {GDPR}’{S} right to access},
  volume = {0},
  issn = {0144-929X},
  shorttitle = {Finding, getting and understanding},
  url = {https://doi.org/10.1080/0144929X.2022.2074894},
  doi = {10.1080/0144929X.2022.2074894},
  abstract = {In both data protection law and research of usable privacy, awareness and control over the collection and use of personal data are understood to be cornerstones of digital sovereignty. For example, the European General Data Protection Regulation (GDPR) provides data subjects with the right to access data collected by organisations but remains unclear on the concrete process design. However, the design of data subject rights is crucial when it comes to the ability of customers to exercise their right and fulfil regulatory aims such as transparency. To learn more about user needs in implementing the right to access as per GDPR, we conducted a two-step study. First, we defined a five-phase user experience journey regarding the right to access: finding, authentication, request, access and data use. Second, and based on this model, 59 participants exercised their right to access and evaluated the usability of each phase. Drawing on 422 datasets spanning 139 organisations, our results show several interdependencies of process design and user satisfaction. Thereby, our insights inform the community of usable privacy and especially the design of the right to access with a first, yet robust, empirical body.},
  number = {0},
  urldate = {2022-06-01},
  journal = {Behaviour \& Information Technology},
  author = {Pins, Dominik and Jakobi, Timo and Stevens, Gunnar and Alizadeh, Fatemeh and Krüger, Jana},
  month = may,
  year = {2022},
  note = {Publisher: Taylor \& Francis
  \_eprint: https://doi.org/10.1080/0144929X.2022.2074894},
  keywords = {GDPR, usability, usable privacy, Data literacy, human and societal aspects of security and privacy, right to access, Security and privacy, usability in security and privacy, user journey},
  pages = {1--27},
  }

• ---

  Alizadeh, F., Mniestri, A., Uhde, A. & Stevens, G. (2022)On Appropriation and Nostalgic Reminiscence of Technology

  CHI ’22 Extended Abstracts. New Orleans, LA, USA, Publisher: Association for Computing Machinery, Pages: 6 doi:10.1145/3491101.3519676
  [BibTeX] [Abstract]

  Technological objects present themselves as necessary, only to become obsolete faster than ever before. This phenomenon has led to a population that experiences a plethora of technological objects and interfaces as they age, which become associated with certain stages of life and disappear thereafter. Noting the expanding body of literature within HCI about appropriation, our work pinpoints an area that needs more attention, „outdated technologies. “ In other words, we assert that design practices can profit as much from imag-inaries of the future as they can from reassessing artefacts from the past in a critical way. In a two-week fieldwork with 37 HCI students, we gathered an international collection of nostalgic devices from 14 different countries to investigate what memories people still have of older technologies and the ways in which these memories reveal normative and accidental use of technological objects. We found that participants primarily remembered older technologies with positive connotations and shared memories of how they had adapted and appropriated these technologies, rather than norma-tive uses. We refer to this phenomenon as nostalgic reminiscence. In the future, we would like to develop this concept further by discussing how nostalgic reminiscence can be operationalized to stimulate speculative design in the present.

  @inproceedings{alizadeh_appropriation_2022,
  address = {New Orleans, LA, USA},
  title = {On {Appropriation} and {Nostalgic} {Reminiscence} of {Technology}},
  isbn = {978-1-4503-9156-6},
  doi = {10.1145/3491101.3519676},
  abstract = {Technological objects present themselves as necessary, only to become obsolete faster than ever before. This phenomenon has led to a population that experiences a plethora of technological objects and interfaces as they age, which become associated with certain stages of life and disappear thereafter. Noting the expanding body of literature within HCI about appropriation, our work pinpoints an area that needs more attention, "outdated technologies. " In other words, we assert that design practices can profit as much from imag-inaries of the future as they can from reassessing artefacts from the past in a critical way. In a two-week fieldwork with 37 HCI students, we gathered an international collection of nostalgic devices from 14 different countries to investigate what memories people still have of older technologies and the ways in which these memories reveal normative and accidental use of technological objects. We found that participants primarily remembered older technologies with positive connotations and shared memories of how they had adapted and appropriated these technologies, rather than norma-tive uses. We refer to this phenomenon as nostalgic reminiscence. In the future, we would like to develop this concept further by discussing how nostalgic reminiscence can be operationalized to stimulate speculative design in the present.},
  booktitle = {{CHI} ’22 {Extended} {Abstracts}},
  publisher = {Association for Computing Machinery},
  author = {Alizadeh, Fatemeh and Mniestri, Aikaterini and Uhde, Alarith and Stevens, Gunnar},
  month = apr,
  year = {2022},
  pages = {6},
  }

• ---

  Jakobi, T., von Grafenstein, M., Smieskol, P. & Stevens, G. (2022)A Taxonomy of user-perceived privacy risks to foster accountability of data-based services

  IN Journal of Responsible Technology, Pages: 32 doi:10.1016/j.jrt.2022.100029
  [BibTeX] [Abstract] [Download PDF]

  Data protection risks play a major role in data protection laws and have shown to be suitable means for accountability in designing for usable privacy. Especially in the legal realm, risks are typically collected heuristically or deductively, e.g., by referring to fundamental right violations. Following a user-centered design credo, research on usable privacy has shown that a user-perspective on privacy risks can enhance system intelligibility and accountability. However, research on mapping the landscape of user-perceived privacy risks is still in its infancy. To extend the corpus of privacy risks as users perceive them in their daily use of technology, we conducted 9 workshops collecting 91 risks in the fields of web browsing, voice assistants and connected mobility. The body of risks was then categorized by 11 experts from the legal and HCI-domain. We find that, while existing taxonomies generally fit well, a societal dimension of risks is not yet represented. Discussing our empirically backed taxonomy including the full list of 91 risks, we demonstrate roads to use user-perceived risks as a mechanism to foster accountability for usable privacy in connected devices.

  @article{jakobi_taxonomy_2022,
  title = {A {Taxonomy} of user-perceived privacy risks to foster accountability of data-based services},
  issn = {2666-6596},
  url = {https://www.sciencedirect.com/science/article/pii/S2666659622000063},
  doi = {10.1016/j.jrt.2022.100029},
  abstract = {Data protection risks play a major role in data protection laws and have shown to be suitable means for accountability in designing for usable privacy. Especially in the legal realm, risks are typically collected heuristically or deductively, e.g., by referring to fundamental right violations. Following a user-centered design credo, research on usable privacy has shown that a user-perspective on privacy risks can enhance system intelligibility and accountability. However, research on mapping the landscape of user-perceived privacy risks is still in its infancy. To extend the corpus of privacy risks as users perceive them in their daily use of technology, we conducted 9 workshops collecting 91 risks in the fields of web browsing, voice assistants and connected mobility. The body of risks was then categorized by 11 experts from the legal and HCI-domain. We find that, while existing taxonomies generally fit well, a societal dimension of risks is not yet represented. Discussing our empirically backed taxonomy including the full list of 91 risks, we demonstrate roads to use user-perceived risks as a mechanism to foster accountability for usable privacy in connected devices.},
  language = {en},
  urldate = {2022-03-29},
  journal = {Journal of Responsible Technology},
  author = {Jakobi, Timo and von Grafenstein, Maximilian and Smieskol, Patrick and Stevens, Gunnar},
  month = mar,
  year = {2022},
  keywords = {GDPR, Usable Privacy, Accountability, Risk-Based Approach, User-perceived risks},
  pages = {32},
  }

• ---

  Stevens, G. & Boden, A. (2022)Warum wir parteiische Datentreuhänder brauchen

  IN Zu treuen Händen? Verbraucherdatenschutz und digitale Selbstbestimmung, Vol. 6, Pages: 25
  [BibTeX] [Abstract] [Download PDF]

  Der technische Fortschritt im Bereich der Erhebung, Speicherung und Verarbeitung von Daten macht es erforderlich, neue Fragen zu sozialverträglichen Datenmärkten aufzuwerfen. So gibt es sowohl eine Tendenz zur vereinfachten Datenteilung als auch die Forderung, die informationelle Selbstbestimmung besser zu schützen. Innerhalb dieses Spannungsfeldes bewegt sich die Idee von Datentreuhändern. Ziel des Beitrags ist darzulegen, dass zwischen verschiedenen Formen der Datentreuhänderschaft unterschieden werden sollte, um der Komplexität des Themas gerecht zu werden. Insbesondere bedarf es neben der mehrseitigen Treuhänderschaft, mit dem Treuhänder als neutraler Instanz, auch der einseitigen Treuhänderschaft, bei dem der Treuhänder als Anwalt der Verbraucherinteressen fungiert. Aus dieser Perspektive wird das Modell der Datentreuhänderschaft als stellvertretende Deutung der Interessen individueller und kollektiver Identitäten systematisch entwickelt.

  @article{stevens_warum_2022,
  title = {Warum wir parteiische {Datentreuhänder} brauchen},
  volume = {6},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/6117},
  abstract = {Der technische Fortschritt im Bereich der Erhebung, Speicherung und Verarbeitung von Daten macht es erforderlich, neue Fragen zu sozialverträglichen Datenmärkten aufzuwerfen. So gibt es sowohl eine Tendenz zur vereinfachten Datenteilung als auch die Forderung, die informationelle Selbstbestimmung besser zu schützen. Innerhalb dieses Spannungsfeldes bewegt sich die Idee von Datentreuhändern. Ziel des Beitrags ist darzulegen, dass zwischen verschiedenen Formen der Datentreuhänderschaft unterschieden werden sollte, um der Komplexität des Themas gerecht zu werden. Insbesondere bedarf es neben der mehrseitigen Treuhänderschaft, mit dem Treuhänder als neutraler Instanz, auch der einseitigen Treuhänderschaft, bei dem der Treuhänder als Anwalt der Verbraucherinteressen fungiert. Aus dieser Perspektive wird das Modell der Datentreuhänderschaft als stellvertretende Deutung der Interessen individueller und kollektiver Identitäten systematisch entwickelt.},
  language = {deu},
  urldate = {2022-03-07},
  journal = {Zu treuen Händen? Verbraucherdatenschutz und digitale Selbstbestimmung},
  author = {Stevens, Gunnar and Boden, Alexander},
  month = feb,
  year = {2022},
  note = {Publisher: Verbraucherzentrale NRW e.V.},
  pages = {25},
  }

• ---

  Alizadeh, F., Stevens, G., Vereschak, O., Bailly, G., Caramiaux, B. & Pins, D. (2022)Building Appropriate Trust in Human-AI Interactions

  doi:10.48340/ecscw2022_ws04
  [BibTeX] [Abstract] [Download PDF]

  AI (artificial intelligence) systems are increasingly being used in all aspects of our lives, from mundane routines to sensitive decision-making and even creative tasks. Therefore, an appropriate level of trust is required so that users know when to rely on the system and when to override it. While research has looked extensively at fostering trust in human-AI interactions, the lack of standardized procedures for human-AI trust makes it difficult to interpret results and compare across studies. As a result, the fundamental understanding of trust between humans and AI remains fragmented. This workshop invites researchers to revisit existing approaches and work toward a standardized framework for studying AI trust to answer the open questions: (1) What does trust mean between humans and AI in different contexts? (2) How can we create and convey the calibrated level of trust in interactions with AI? And (3) How can we develop a standardized framework to address new challenges?

  @article{alizadeh_building_2022,
  title = {Building {Appropriate} {Trust} in {Human}-{AI} {Interactions}},
  issn = {2510-2591},
  url = {https://dl.eusset.eu/handle/20.500.12015/4407},
  doi = {10.48340/ecscw2022_ws04},
  abstract = {AI (artificial intelligence) systems are increasingly being used in all aspects of our lives, from mundane routines to sensitive decision-making and even creative tasks. Therefore, an appropriate level of trust is required so that users know when to rely on the system and when to override it. While research has looked extensively at fostering trust in human-AI interactions, the lack of standardized procedures for human-AI trust makes it difficult to interpret results and compare across studies. As a result, the fundamental understanding of trust between humans and AI remains fragmented. This workshop invites researchers to revisit existing approaches and work toward a standardized framework for studying AI trust to answer the open questions: (1) What does trust mean between humans and AI in different contexts? (2) How can we create and convey the calibrated level of trust in interactions with AI? And (3) How can we develop a standardized framework to address new challenges?},
  language = {en},
  urldate = {2022-06-27},
  author = {Alizadeh, Fatemeh and Stevens, Gunnar and Vereschak, Oleksandra and Bailly, Gilles and Caramiaux, Baptiste and Pins, Dominik},
  year = {2022},
  note = {Accepted: 2022-06-22T04:34:50Z
  Publisher: European Society for Socially Embedded Technologies (EUSSET)},
  }

2021

• ---

  Lawo, D., Esau, M., Neifer, T. & Stevens, G. (2021)Probing Integrated Household Information Systems for Integrated Food Practices

  , Publisher: SciTePress, Science and Technology Publications, Pages: 15–23
  [BibTeX] [Abstract] [Download PDF]

  Recent publications propose concepts of systems that integrate the various services and data sources of everyday food practices. However, this research does not go beyond the conceptualization of such systems. Therefore, there is a deficit in understanding how to combine different services and data sources and which design challenges arise from building integrated Household Information Systems. In this paper, we probed the design of an Integrated Household Information System with 13 participants. The results point towards more personalization, automatization of storage administration and enabling flexible artifact ecologies. Our paper contributes to understanding the design and usage of Integrated Household Information Systems, as a new class of information systems for HCI research.

  @inproceedings{lawo_probing_2021,
  title = {Probing {Integrated} {Household} {Information} {Systems} for {Integrated} {Food} {Practices}},
  isbn = {978-989-758-538-8},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/5995},
  abstract = {Recent publications propose concepts of systems that integrate the various services and data sources of everyday food practices. However, this research does not go beyond the conceptualization of such systems. Therefore, there is a deficit in understanding how to combine different services and data sources and which design challenges arise from building integrated Household Information Systems. In this paper, we probed the design of an Integrated Household Information System with 13 participants. The results point towards more personalization, automatization of storage administration and enabling flexible artifact ecologies. Our paper contributes to understanding the design and usage of Integrated Household Information Systems, as a new class of information systems for HCI research.},
  language = {eng},
  urldate = {2021-11-16},
  publisher = {SciTePress, Science and Technology Publications},
  author = {Lawo, Dennis and Esau, Margarita and Neifer, Thomas and Stevens, Gunnar},
  month = nov,
  year = {2021},
  pages = {15--23},
  }

• ---

  Lawo, D., Böhm, L., Flügge, A., Pakusch, C. & Stevens, G. (2021)Going Car-free: Investigating Mobility Practice Transformations and the Role of ICT

  , Publisher: SciTePress, Science and Technology Publications, Pages: 36–47
  [BibTeX] [Abstract] [Download PDF]

  With the debates on climate change and sustainability, a reduction of the share of cars in the modal split has become increasingly prevalent in both public and academic discourse. Besides some motivational approaches, there is a lack of ICT artifacts that successfully raise the ability of consumers to adopt sustainable mobility patterns. To further understand the requirements and the design of these artifacts within everyday mobility adopted a practice-lens. This lens is helpful to get a broader perspective on the use of ICT artifacts along consumers’ transformational journey towards sustainable mobility practices. Based on 12 retrospective interviews with car-free mobility consumers, we argue that artifacts should not be viewed as ’magic-bullet’ solutions but should accompany the complex transformation of practices in multifaceted ways. Moreover, we highlight in particular the difficulties of appropriating shared infrastructures and aligning own practices with them. This opens up a design space to provide more support for these kinds of material-interactions, to provide access to consumption infrastructures and make them usable, rather than leaving consumers alone with increased motivation.

  @inproceedings{lawo_going_2021,
  title = {Going {Car}-free: {Investigating} {Mobility} {Practice} {Transformations} and the {Role} of {ICT}},
  isbn = {978-989-758-538-8},
  shorttitle = {Going {Car}-free},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/5996},
  abstract = {With the debates on climate change and sustainability, a reduction of the share of cars in the modal split has become increasingly prevalent in both public and academic discourse. Besides some motivational approaches, there is a lack of ICT artifacts that successfully raise the ability of consumers to adopt sustainable mobility patterns. To further understand the requirements and the design of these artifacts within everyday mobility adopted a practice-lens. This lens is helpful to get a broader perspective on the use of ICT artifacts along consumers’ transformational journey towards sustainable mobility practices. Based on 12 retrospective interviews with car-free mobility consumers, we argue that artifacts should not be viewed as ’magic-bullet’ solutions but should accompany the complex transformation of practices in multifaceted ways. Moreover, we highlight in particular the difficulties of appropriating shared infrastructures and aligning own practices with them. This opens up a design space to provide more support for these kinds of material-interactions, to provide access to consumption infrastructures and make them usable, rather than leaving consumers alone with increased motivation.},
  language = {eng},
  urldate = {2021-11-16},
  publisher = {SciTePress, Science and Technology Publications},
  author = {Lawo, Dennis and Böhm, Lukas and Flügge, Anna-Katharina and Pakusch, Christina and Stevens, Gunnar},
  month = nov,
  year = {2021},
  pages = {36--47},
  }

• ---

  Esau, M., Lawo, D., Castelli, N., Jakobi, T. & Stevens, G. (2021)Morning Routines between Calm and Engaging: Designing a Smart Mirror

  , Publisher: SciTePress, Science and Technology Publications, Pages: 58–69
  [BibTeX] [Abstract] [Download PDF]

  Frequently the main purpose of domestic artifacts equipped with smart sensors is to hide technology, like previous examples of a Smart Mirror show. However, current Smart Homes often fail to provide meaningful IoT applications for all residents’ needs. To design beyond efficiency and productivity, we propose to realize the potential of the traditional artifact for calm and engaging experiences. Therefore, we followed a design case study approach with 22 participants in total. After an initial focus group, we conducted a diary study to examine home routines and developed a conceptual design. The evaluation of our mid-fidelity prototype shows, that we need to study carefully the practices of the residents to leverage the physical material of the artifact to fit the routines. Our Smart Mirror, enhanced by digital qualities, supports meaningful activities and makes the bathroom more appealing. Thereby, we discuss domestic technology design beyond automation.

  @inproceedings{esau_morning_2021,
  title = {Morning {Routines} between {Calm} and {Engaging}: {Designing} a {Smart} {Mirror}},
  isbn = {978-989-758-538-8},
  shorttitle = {Morning {Routines} between {Calm} and {Engaging}},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/5997},
  abstract = {Frequently the main purpose of domestic artifacts equipped with smart sensors is to hide technology, like previous examples of a Smart Mirror show. However, current Smart Homes often fail to provide meaningful IoT applications for all residents’ needs. To design beyond efficiency and productivity, we propose to realize the potential of the traditional artifact for calm and engaging experiences. Therefore, we followed a design case study approach with 22 participants in total. After an initial focus group, we conducted a diary study to examine home routines and developed a conceptual design. The evaluation of our mid-fidelity prototype shows, that we need to study carefully the practices of the residents to leverage the physical material of the artifact to fit the routines. Our Smart Mirror, enhanced by digital qualities, supports meaningful activities and makes the bathroom more appealing. Thereby, we discuss domestic technology design beyond automation.},
  language = {eng},
  urldate = {2021-11-16},
  publisher = {SciTePress, Science and Technology Publications},
  author = {Esau, Margarita and Lawo, Dennis and Castelli, Nico and Jakobi, Timo and Stevens, Gunnar},
  month = nov,
  year = {2021},
  pages = {58--69},
  }

• ---

  Pakusch, C., Boden, A., Stein, M. & Stevens, G. (2021)The Automation of the Taxi Industry – Taxi Drivers’ Expectations and Attitudes Towards the Future of their Work

  IN Computer Supported Cooperative Work (CSCW) doi:10.1007/s10606-021-09408-1
  [BibTeX] [Abstract] [Download PDF]

  Advocates of autonomous driving predict that the occupation of taxi driver could be made obsolete by shared autonomous vehicles (SAV) in the long term. Conducting interviews with German taxi drivers, we investigate how they perceive the changes caused by advancing automation for the future of their business. Our study contributes insights into how the work of taxi drivers could change given the advent of autonomous driving: While the task of driving could be taken over by SAVs for standard trips, taxi drivers are certain that other areas of their work such as providing supplementary services and assistance to passengers would constitute a limit to such forms of automation, but probably involving a shifting role for the taxi drivers, one which focuses on the sociality of the work. Our findings illustrate how taxi drivers see the future of their work, suggesting design implications for tools that take various forms of assistance into account, and demonstrating how important it is to consider taxi drivers in the co-design of future taxis and SAV services.

  @article{pakusch_automation_2021,
  title = {The {Automation} of the {Taxi} {Industry} – {Taxi} {Drivers}’ {Expectations} and {Attitudes} {Towards} the {Future} of their {Work}},
  issn = {1573-7551},
  url = {https://doi.org/10.1007/s10606-021-09408-1},
  doi = {10.1007/s10606-021-09408-1},
  abstract = {Advocates of autonomous driving predict that the occupation of taxi driver could be made obsolete by shared autonomous vehicles (SAV) in the long term. Conducting interviews with German taxi drivers, we investigate how they perceive the changes caused by advancing automation for the future of their business. Our study contributes insights into how the work of taxi drivers could change given the advent of autonomous driving: While the task of driving could be taken over by SAVs for standard trips, taxi drivers are certain that other areas of their work such as providing supplementary services and assistance to passengers would constitute a limit to such forms of automation, but probably involving a shifting role for the taxi drivers, one which focuses on the sociality of the work. Our findings illustrate how taxi drivers see the future of their work, suggesting design implications for tools that take various forms of assistance into account, and demonstrating how important it is to consider taxi drivers in the co-design of future taxis and SAV services.},
  language = {en},
  urldate = {2021-09-13},
  journal = {Computer Supported Cooperative Work (CSCW)},
  author = {Pakusch, Christina and Boden, Alexander and Stein, Martin and Stevens, Gunnar},
  month = sep,
  year = {2021},
  }

• ---

  Jakobi, T., von Grafenstein, M., Legner, C., Labadie, C., Mertens, P., Öksüz, A. & Stevens, G. (2021)Correction to: The Role of IS in the Conflicting Interests Regarding GDPR

  IN Business & Information Systems Engineering doi:10.1007/s12599-021-00711-1
  [BibTeX] [Download PDF]

  @article{jakobi_correction_2021,
  title = {Correction to: {The} {Role} of {IS} in the {Conflicting} {Interests} {Regarding} {GDPR}},
  issn = {1867-0202},
  shorttitle = {Correction to},
  url = {https://doi.org/10.1007/s12599-021-00711-1},
  doi = {10.1007/s12599-021-00711-1},
  language = {en},
  urldate = {2021-08-09},
  journal = {Business \& Information Systems Engineering},
  author = {Jakobi, Timo and von Grafenstein, Maximilian and Legner, Christine and Labadie, Clément and Mertens, Peter and Öksüz, Ayten and Stevens, Gunnar},
  month = aug,
  year = {2021},
  }

• ---

  Neifer, T., Lawo, D., Stevens, G., Boden, A. & Gadatsch, A. (2021)Recommender Systems in Food Retail: Modeling Repeat Purchase Decisions on Transaction Data of a Stationary Food Retailer

  , Publisher: SCITEPRESS – Science and Technology Publications, Pages: 25–36
  [BibTeX] [Abstract] [Download PDF]

  In the course of growing online retailing, recommendation systems have become established that derive recommendations from customers’ purchase histories. Recommending suitable food products can represent a lucrative added value for food retailers, but at the same time challenges them to make good predictions for repeated food purchases. Repeat purchase recommendations have been little explored in the literature. These predict when a product will be purchased again by a customer. This is especially important for food recommendations, since it is not the frequency of the same item in the shopping basket that is relevant for determining repeat purchase intervals, but rather their difference over time. In this paper, in addition to critically reflecting classical recommendation systems on the underlying repeat purchase context, two models for online product recommendations are derived from the literature, validated and discussed for the food context using real transaction data of a German stationary food retailer.

  @inproceedings{neifer_recommender_2021,
  title = {Recommender {Systems} in {Food} {Retail}: {Modeling} {Repeat} {Purchase} {Decisions} on {Transaction} {Data} of a {Stationary} {Food} {Retailer}},
  isbn = {978-989-758-527-2},
  shorttitle = {Recommender {Systems} in {Food} {Retail}},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/5766},
  abstract = {In the course of growing online retailing, recommendation systems have become established that derive recommendations from customers’ purchase histories. Recommending suitable food products can represent a lucrative added value for food retailers, but at the same time challenges them to make good predictions for repeated food purchases. Repeat purchase recommendations have been little explored in the literature. These predict when a product will be purchased again by a customer. This is especially important for food recommendations, since it is not the frequency of the same item in the shopping basket that is relevant for determining repeat purchase intervals, but rather their difference over time. In this paper, in addition to critically reflecting classical recommendation systems on the underlying repeat purchase context, two models for online product recommendations are derived from the literature, validated and discussed for the food context using real transaction data of a German stationary food retailer.},
  language = {eng},
  urldate = {2021-08-02},
  publisher = {SCITEPRESS - Science and Technology Publications},
  author = {Neifer, Thomas and Lawo, Dennis and Stevens, Gunnar and Boden, Alexander and Gadatsch, Andreas},
  month = jul,
  year = {2021},
  pages = {25--36},
  }

• ---

  Lawo, D., Neifer, T., Esau, M., Engelbutzeder, P. & Stevens, G. (2021)Scan&Go: Understanding Adoption and Design of Smartphone-based Self-checkout

  , Publisher: SCITEPRESS – Science and Technology Publications, Pages: 183–194
  [BibTeX] [Abstract] [Download PDF]

  Since stationary self-checkout is widely introduced and well understood, previous research barely examined newer generations of smartphone-based Scan&Go. Especially from a design perspective, we know little about the factors contributing to the adoption of Scan&Go solutions and how design enables consumers to take full advantage of this development rather than being burdened with using complex and unenjoyable systems. To understand the influencing factors and the design from a consumer perspective, we conducted a mixed-methods study where we triangulated data of an online survey with 103 participants and a qualitative study with 20 participants. Based on the results, our study presents a refined and nuanced understanding of technology as well as infrastructure-related factors that influence adoption. Moreover, we present several implications for designing and implementing of Scan&Go in retail environments.

  @inproceedings{lawo_scango_2021,
  title = {Scan\&{Go}: {Understanding} {Adoption} and {Design} of {Smartphone}-based {Self}-checkout},
  isbn = {978-989-758-527-2},
  shorttitle = {Scan\&{Go}},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/5768},
  abstract = {Since stationary self-checkout is widely introduced and well understood, previous research barely examined newer generations of smartphone-based Scan\&Go. Especially from a design perspective, we know little about the factors contributing to the adoption of Scan\&Go solutions and how design enables consumers to take full advantage of this development rather than being burdened with using complex and unenjoyable systems. To understand the influencing factors and the design from a consumer perspective, we conducted a mixed-methods study where we triangulated data of an online survey with 103 participants and a qualitative study with 20 participants. Based on the results, our study presents a refined and nuanced understanding of technology as well as infrastructure-related factors that influence adoption. Moreover, we present several implications for designing and implementing of Scan\&Go in retail environments.},
  language = {eng},
  urldate = {2021-08-02},
  publisher = {SCITEPRESS - Science and Technology Publications},
  author = {Lawo, Dennis and Neifer, Thomas and Esau, Margarita and Engelbutzeder, Philip and Stevens, Gunnar},
  month = jul,
  year = {2021},
  pages = {183--194},
  }

• ---

  Lawo, D., Neifer, T., Esau, M. & Stevens, G. (2021)Buying the ‚Right‘ Thing: Designing Food Recommender Systems with Critical Consumers

  Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1–13 doi:10.1145/3411764.3445264
  [BibTeX] [Abstract] [Download PDF]

  Critical consumerism is complex as ethical values are difficult to negotiate, appropriate products are hard to find, and product information is overwhelming. Although recommender systems offer solutions to reduce such complexity, current designs are not appropriate for niche practices and use non-personalized intransparent ethics. To support critical consumption, we conducted a design case study on a personalized food recommender system. Therefore, we first conducted an empirical pre-study with 24 consumers to understand value negotiations and current practices, co-designed the recommender system, and finally evaluated it in a real-world trial with ten consumers. Our findings show how recommender systems can support the negotiation of ethical values within the context of consumption practices, reduce the complexity of finding products and stores, and strengthen consumers. In addition to providing implications for the design to support critical consumption practices, we critically reflect on the scope of such recommender systems and its appropriation.

  @inproceedings{lawo_buying_2021,
  address = {New York, NY, USA},
  series = {{CHI} '21},
  title = {Buying the '{Right}' {Thing}: {Designing} {Food} {Recommender} {Systems} with {Critical} {Consumers}},
  isbn = {978-1-4503-8096-6},
  shorttitle = {Buying the '{Right}' {Thing}},
  url = {https://dl.acm.org/doi/pdf/10.1145/3411764.3445264},
  doi = {10.1145/3411764.3445264},
  abstract = {Critical consumerism is complex as ethical values are difficult to negotiate, appropriate products are hard to find, and product information is overwhelming. Although recommender systems offer solutions to reduce such complexity, current designs are not appropriate for niche practices and use non-personalized intransparent ethics. To support critical consumption, we conducted a design case study on a personalized food recommender system. Therefore, we first conducted an empirical pre-study with 24 consumers to understand value negotiations and current practices, co-designed the recommender system, and finally evaluated it in a real-world trial with ten consumers. Our findings show how recommender systems can support the negotiation of ethical values within the context of consumption practices, reduce the complexity of finding products and stores, and strengthen consumers. In addition to providing implications for the design to support critical consumption practices, we critically reflect on the scope of such recommender systems and its appropriation.},
  urldate = {2021-05-17},
  booktitle = {Proceedings of the 2021 {CHI} {Conference} on {Human} {Factors} in {Computing} {Systems}},
  publisher = {Association for Computing Machinery},
  author = {Lawo, Dennis and Neifer, Thomas and Esau, Margarita and Stevens, Gunnar},
  month = may,
  year = {2021},
  keywords = {ethics, consumer informatics, co-design, critical consumerism, food, recommender systems},
  pages = {1--13},
  }

• ---

  Castelli, N., de Carvalho, A. F. P., Vitt, N., Taugerbeck, S., Randall, D., Tolmie, P., Stevens, G. & Wulf, V. (2021)On technology-assisted energy saving: challenges of digital plumbing in industrial settings

  IN Human–Computer Interaction, Pages: 1–29 doi:10.1080/07370024.2020.1855589
  [BibTeX] [Download PDF]

  @article{castelli_technology-assisted_2021,
  title = {On technology-assisted energy saving: challenges of digital plumbing in industrial settings},
  volume = {0},
  issn = {0737-0024},
  shorttitle = {On technology-assisted energy saving},
  url = {https://doi.org/10.1080/07370024.2020.1855589},
  doi = {10.1080/07370024.2020.1855589},
  number = {0},
  urldate = {2021-04-15},
  journal = {Human–Computer Interaction},
  author = {Castelli, Nico and Carvalho, Aparecido Fabiano Pinatti de and Vitt, Nico and Taugerbeck, Sebastian and Randall, Dave and Tolmie, Peter and Stevens, Gunnar and Wulf, Volker},
  month = jan,
  year = {2021},
  keywords = {Digital Energy Management, Digital Plumbing, Socio Informatics},
  pages = {1--29},
  annote = {Publisher: Taylor \& Francis \_eprint: https://doi.org/10.1080/07370024.2020.1855589},
  }

• ---

  Alizadeh, F., Stevens, G. & Esau, M. (2021)I Don’t Know, Is AI Also Used in Airbags?

  IN i-com, Vol. 20, Pages: 3–17 doi:doi:10.1515/icom-2021-0009
  [BibTeX] [Download PDF]

  @article{alizadeh_i_2021,
  title = {I {Don}’t {Know}, {Is} {AI} {Also} {Used} in {Airbags}?},
  volume = {20},
  url = {https://doi.org/10.1515/icom-2021-0009},
  doi = {doi:10.1515/icom-2021-0009},
  number = {1},
  journal = {i-com},
  author = {Alizadeh, Fatemeh and Stevens, Gunnar and Esau, Margarita},
  year = {2021},
  pages = {3--17},
  }

• ---

  Boden, A., Jakobi, T., Stevens, G. & Bala, C. (2021)Verbraucherdatenschutz – Hintergrund und Einführung

  IN Verbraucherdatenschutz – Technik und Regulation zur Unterstützung des Individuums, Vol. Schriften der Verbraucherinformatik Band 1, Pages: 389 KB, 7 pages doi:10.18418/978-3-96043-095-7_00
  [BibTeX] [Abstract] [Download PDF]

  An der Hochschule Bonn-Rhein-Sieg fand am Donnerstag, den 23.9.21 das erste Verbraucherforum für Verbraucherinformatik statt. Im Rahmen der OnlineTagesveranstaltung diskutierten mehr als 30 Teilnehmer:innen über Themen und Ideen rund um den Bereich Verbraucherdatenschutz. Dabei kamen sowohl Beiträge aus der Informatik, den Verbraucher- und Sozialwissenschaften sowie auch der regulatorischen Perspektive zur Sprache. Der folgende Beitrag stellt den Hintergrund der Veranstaltung dar und berichtet über Inhalte der Vorträge sowie Anknüpfungspunkte für die weitere Konstituierung der Verbraucherinformatik. Veranstalter waren das Institut für Verbraucherinformatik an der H-BRS in Zusammenarbeit mit dem Lehrstuhl IT-Sicherheit der Universität Siegen sowie dem Kompetenzzentrum Verbraucherforschung NRW der Verbraucherzentrale NRW e. V. mit Förderung des Bundesministeriums der Justiz und für Verbraucherschutz.

  @article{boden_alexander_verbraucherdatenschutz_2021,
  title = {Verbraucherdatenschutz – {Hintergrund} und {Einführung}},
  volume = {Schriften der Verbraucherinformatik Band 1},
  copyright = {Creative Commons - CC BY - Namensnennung 4.0 International},
  url = {https://pub.h-brs.de/6019},
  doi = {10.18418/978-3-96043-095-7_00},
  abstract = {An der Hochschule Bonn-Rhein-Sieg fand am Donnerstag, den 23.9.21 das erste Verbraucherforum für Verbraucherinformatik statt. Im Rahmen der OnlineTagesveranstaltung diskutierten mehr als 30 Teilnehmer:innen über Themen und Ideen rund um den Bereich Verbraucherdatenschutz. Dabei kamen sowohl Beiträge aus der Informatik, den Verbraucher- und Sozialwissenschaften sowie auch der regulatorischen Perspektive zur Sprache. Der folgende Beitrag stellt den Hintergrund der Veranstaltung dar und berichtet über Inhalte der Vorträge sowie Anknüpfungspunkte für die weitere Konstituierung der Verbraucherinformatik. Veranstalter waren das Institut für Verbraucherinformatik an der H-BRS in Zusammenarbeit mit dem Lehrstuhl IT-Sicherheit der Universität Siegen sowie dem Kompetenzzentrum Verbraucherforschung NRW der Verbraucherzentrale NRW e. V. mit Förderung des Bundesministeriums der Justiz und für Verbraucherschutz.},
  language = {de},
  urldate = {2021-12-13},
  journal = {Verbraucherdatenschutz – Technik und Regulation zur Unterstützung des Individuums},
  author = {Boden, Alexander and Jakobi, Timo and Stevens, Gunnar and Bala, Christian},
  year = {2021},
  note = {Artwork Size: 389 KB, 7 pages
  Medium: application/pdf
  Publisher: Hochschule Bonn-Rhein-Sieg},
  keywords = {005 Computerprogrammierung, Programme, Daten},
  pages = {389 KB, 7 pages},
  }

• ---

  Jakobi, T., Alizadeh, F., Marburger, M. & Stevens, G. (2021)A Consumer Perspective on Privacy Risk Awareness of Connected Car Data Use

  doi:10.1145/3473856.3473891
  [BibTeX] [Abstract] [Download PDF]

  New cars are increasingly „connected“ by default. Since not having a car is not an option for many people, understanding the privacy implications of driving connected cars and using their data-based services is an even more pressing issue than for expendable consumer products. While risk-based approaches to privacy are well established in law, they have only begun to gain traction in HCI. These approaches are understood not only to increase acceptance but also to help consumers make choices that meet their needs. To the best of our knowledge, perceived risks in the context of connected cars have not been studied before. To address this gap, our study reports on the analysis of a survey with 18 open-ended questions distributed to 1,000 households in a medium-sized German city. Our findings provide qualitative insights into existing attitudes and use cases of connected car features and, most importantly, a list of perceived risks themselves. Taking the perspective of consumers, we argue that these can help inform consumers about data use in connected cars in a user-friendly way. Finally, we show how these risks fit into and extend existing risk taxonomies from other contexts with a stronger social perspective on risks of data use.

  @article{jakobi_consumer_2021,
  title = {A {Consumer} {Perspective} on {Privacy} {Risk} {Awareness} of {Connected} {Car} {Data} {Use}},
  url = {http://dl.gi.de/handle/20.500.12116/37266},
  doi = {10.1145/3473856.3473891},
  abstract = {New cars are increasingly "connected" by default. Since not having a car is not an option for many people, understanding the privacy implications of driving connected cars and using their data-based services is an even more pressing issue than for expendable consumer products. While risk-based approaches to privacy are well established in law, they have only begun to gain traction in HCI. These approaches are understood not only to increase acceptance but also to help consumers make choices that meet their needs. To the best of our knowledge, perceived risks in the context of connected cars have not been studied before. To address this gap, our study reports on the analysis of a survey with 18 open-ended questions distributed to 1,000 households in a medium-sized German city. Our findings provide qualitative insights into existing attitudes and use cases of connected car features and, most importantly, a list of perceived risks themselves. Taking the perspective of consumers, we argue that these can help inform consumers about data use in connected cars in a user-friendly way. Finally, we show how these risks fit into and extend existing risk taxonomies from other contexts with a stronger social perspective on risks of data use.},
  language = {en},
  urldate = {2021-09-16},
  author = {Jakobi, Timo and Alizadeh, Fatemeh and Marburger, Martin and Stevens, Gunnar},
  year = {2021},
  note = {Accepted: 2021-09-03T19:10:19Z
  Publisher: ACM},
  }

2020

• ---

  Engelbutzeder, P., Cerna, K., Randall, D., Lawo, D., Müller, C., Stevens, G. & Wulf, V. (2020)Investigating the use of digital artifacts in a community project of sustainable food practices: ‚My chili blossoms‘

  Proceedings of the 11th Nordic Conference on Human-Computer Interaction: Shaping Experiences, Shaping Society. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1–4 doi:10.1145/3419249.3420089
  [BibTeX] [Abstract] [Download PDF]

  Research on food practices has become more common among scholars of HCI in recent years. Human-Food-Interaction (HFI) looks into the interplay of humans, food and technology. HFI, even so, has paid relatively little attention to the more collective elements of food practice, including social bonding [1]. The modest project we describe below aimed to say something about the use of digital artifacts to support community engagement for sustainable food practices. We participated, as action researchers (see [2]) in a grassroots movement that instigated a project around learning about food growing, using digital means to bring interested people together during times of physical distancing: In the project Vegetables seek a home, people from various backgrounds ‘adopted’ a chili-plant, they are invited to share what they like in a Telegram-Group, and to get learning-modules via a mailing-list. Through an analysis of the communal effort to actualize the project (video-calls, Telegram, wechange.de) and the content of the Telegram-Group for the chili-plant adopting parents and experts, we suggest some design implications for grassroots communities and sustainable food practice. In future research we intend an iterative design to support the community and its project, utilizing Holmgren’s 12 principles of permaculture design.

  @inproceedings{engelbutzeder_investigating_2020,
  address = {New York, NY, USA},
  series = {{NordiCHI} '20},
  title = {Investigating the use of digital artifacts in a community project of sustainable food practices: '{My} chili blossoms'},
  isbn = {978-1-4503-7579-5},
  shorttitle = {Investigating the use of digital artifacts in a community project of sustainable food practices},
  url = {https://doi.org/10.1145/3419249.3420089},
  doi = {10.1145/3419249.3420089},
  abstract = {Research on food practices has become more common among scholars of HCI in recent years. Human-Food-Interaction (HFI) looks into the interplay of humans, food and technology. HFI, even so, has paid relatively little attention to the more collective elements of food practice, including social bonding [1]. The modest project we describe below aimed to say something about the use of digital artifacts to support community engagement for sustainable food practices. We participated, as action researchers (see [2]) in a grassroots movement that instigated a project around learning about food growing, using digital means to bring interested people together during times of physical distancing: In the project Vegetables seek a home, people from various backgrounds ‘adopted’ a chili-plant, they are invited to share what they like in a Telegram-Group, and to get learning-modules via a mailing-list. Through an analysis of the communal effort to actualize the project (video-calls, Telegram, wechange.de) and the content of the Telegram-Group for the chili-plant adopting parents and experts, we suggest some design implications for grassroots communities and sustainable food practice. In future research we intend an iterative design to support the community and its project, utilizing Holmgren's 12 principles of permaculture design.},
  urldate = {2021-04-15},
  booktitle = {Proceedings of the 11th {Nordic} {Conference} on {Human}-{Computer} {Interaction}: {Shaping} {Experiences}, {Shaping} {Society}},
  publisher = {Association for Computing Machinery},
  author = {Engelbutzeder, Philip and Cerna, Katerina and Randall, Dave and Lawo, Dennis and M\üller, Claudia and Stevens, Gunnar and Wulf, Volker},
  month = oct,
  year = {2020},
  keywords = {italg, Grassroots, HFI, Sustainability, Sustainable HCI, Learning, Community, Food},
  pages = {1--4},
  }

• ---

  Pakusch, C., Meurer, J., Tolmie, P. & Stevens, G. (2020)Traditional taxis vs automated taxis – Does the driver matter for Millennials?

  IN Travel Behaviour and Society, Vol. 21, Pages: 214–225 doi:10.1016/j.tbs.2020.06.009
  [BibTeX] [Abstract] [Download PDF]

  It is anticipated that autonomous vehicles will have a huge impact on the creation of sustainable smart cities and communities. One of the key concerns regarding autonomous vehicles is how automation may threaten jobs in the transport industry, including the traditional role of taxi drivers. To begin to explore how important an actual taxi driver is to customers and the extent to which they might be happy to have autonomous taxis replace traditional taxis, we conducted qualitative interviews with 34 Millennial-aged participants. These were problem-centered narrative interviews, largely conducted face-to-face, and analyzed using thematic analysis. Millennials were focused upon because, given current figures and likely future projections of use, they form the key market for prospective future autonomous taxis. The results show that the kind of taxi rides Millennials make are particularly suitable for automated taxis because interaction with a human driver is not a high priority for this group, while the prospect of autonomous taxis being cheaper is. Meanwhile the fate of taxi drivers does not play a significant part in how Millennials reason about this. An incidental finding, here, is that, by offering a convenient and affordable alternative, the advent of automated taxis may also pose a threat to public transportation.

  @article{pakusch_traditional_2020,
  title = {Traditional taxis vs automated taxis – {Does} the driver matter for {Millennials}?},
  volume = {21},
  issn = {2214-367X},
  url = {https://www.sciencedirect.com/science/article/pii/S2214367X20301897},
  doi = {10.1016/j.tbs.2020.06.009},
  abstract = {It is anticipated that autonomous vehicles will have a huge impact on the creation of sustainable smart cities and communities. One of the key concerns regarding autonomous vehicles is how automation may threaten jobs in the transport industry, including the traditional role of taxi drivers. To begin to explore how important an actual taxi driver is to customers and the extent to which they might be happy to have autonomous taxis replace traditional taxis, we conducted qualitative interviews with 34 Millennial-aged participants. These were problem-centered narrative interviews, largely conducted face-to-face, and analyzed using thematic analysis. Millennials were focused upon because, given current figures and likely future projections of use, they form the key market for prospective future autonomous taxis. The results show that the kind of taxi rides Millennials make are particularly suitable for automated taxis because interaction with a human driver is not a high priority for this group, while the prospect of autonomous taxis being cheaper is. Meanwhile the fate of taxi drivers does not play a significant part in how Millennials reason about this. An incidental finding, here, is that, by offering a convenient and affordable alternative, the advent of automated taxis may also pose a threat to public transportation.},
  language = {en},
  urldate = {2021-04-16},
  journal = {Travel Behaviour and Society},
  author = {Pakusch, Christina and Meurer, Johanna and Tolmie, Peter and Stevens, Gunnar},
  month = oct,
  year = {2020},
  keywords = {Qualitative research, Automated taxis, Interview study, Millennials, Mobility behavior, Shared autonomous vehicles, Sharing economies, Social sustainability, Travel mode choice},
  pages = {214--225},
  }

• ---

  Pins, D., Boden, A., Essing, B. & Stevens, G. (2020)„Miss understandable“: a study on how users appropriate voice assistants and deal with misunderstandings

  Proceedings of the Conference on Mensch und Computer. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 349–359 doi:10.1145/3404983.3405511
  [BibTeX] [Abstract] [Download PDF]

  This study examines the appropriation and usage of voice assistants like Google Assistant or Amazon Alexa in private households. Our research is based on 10 in-depth interviews with users of voice assistants and a follow-up evaluation of their interaction histories. Our results illustrate situations in which the voice assistants were used at home, what strategies the users adopted to interact with them, how the interactions were performed, and what difficulties users experienced. A focus of our study is on misunderstandings, situations where interactions failed partially or completely. Our study shows that the full potential of voice assistants is often not utilized, as complex interactions are often subject to failures and users revert to simple use cases. Our participants used their voice assistant mostly for simple commands, often not even trying new functions. An analysis of their appropriation strategies resulted in implications for the design of supportive tools as well as the further development and optimization of voice interfaces.

  @inproceedings{pins_miss_2020,
  address = {New York, NY, USA},
  series = {{MuC} '20},
  title = {"{Miss} understandable": a study on how users appropriate voice assistants and deal with misunderstandings},
  isbn = {978-1-4503-7540-5},
  shorttitle = {"{Miss} understandable"},
  url = {https://doi.org/10.1145/3404983.3405511},
  doi = {10.1145/3404983.3405511},
  abstract = {This study examines the appropriation and usage of voice assistants like Google Assistant or Amazon Alexa in private households. Our research is based on 10 in-depth interviews with users of voice assistants and a follow-up evaluation of their interaction histories. Our results illustrate situations in which the voice assistants were used at home, what strategies the users adopted to interact with them, how the interactions were performed, and what difficulties users experienced. A focus of our study is on misunderstandings, situations where interactions failed partially or completely. Our study shows that the full potential of voice assistants is often not utilized, as complex interactions are often subject to failures and users revert to simple use cases. Our participants used their voice assistant mostly for simple commands, often not even trying new functions. An analysis of their appropriation strategies resulted in implications for the design of supportive tools as well as the further development and optimization of voice interfaces.},
  urldate = {2021-04-15},
  booktitle = {Proceedings of the {Conference} on {Mensch} und {Computer}},
  publisher = {Association for Computing Machinery},
  author = {Pins, Dominik and Boden, Alexander and Essing, Britta and Stevens, Gunnar},
  month = sep,
  year = {2020},
  keywords = {appropriation, breakdowns, human computer interaction, usability, voice interaction},
  pages = {349--359},
  }

• ---

  Jakobi, T., Stevens, G., von Grafenstein, M., Pins, D. & Boden, A. (2020)Die nutzerInnenfreundliche Formulierung von Zwecken der Datenverarbeitung von Sprachassistenten

  [BibTeX] [Abstract] [Download PDF]

  2019 wurde bekannt, dass mehrere Anbieter von Sprachassistenten Sprachaufnahmen ihrer NutzerInnen systematisch ausgewertet haben. Da in den Datenschutzhinweisen angegeben war, dass Daten auch zur Verbesserung des Dienstes genutzt würden, war diese Nutzung legal. Für die NutzerInnen stellte diese Auswertung jedoch einen deutlichen Bruch mit ihren Privatheitsvorstellungen dar. Das Zweckbindungsprinzip der DSGVO mit seiner Komponente der Zweckspezifizierung fordert neben Flexibilität für den Verarbeiter auch Transparenz für den Verbraucher. Vor dem Hintergrund dieses Interessenkonflikts stellt sich für die HCI die Frage, wie Verarbeitungszwecke von Sprachassistenten gestaltet sein sollten, um beide Anforderungen zu erfüllen. Für die Erhebung einer Nutzerperspektive analysiert diese Studie zunächst Zweckangaben in den Datenschutzhinweisen der dominierenden Sprachassistenten. Darauf aufbauend präsentieren wir Ergebnisse von Fokusgruppen, die sich mit der wahrgenommenen Verarbeitung von Daten von Sprachassistenten aus Nutzersicht befassen. Es zeigt sich, dass bestehende Zweckformulierungen für VerbraucherInnen kaum Transparenz über Folgen der Datenverarbeitung bieten und keine einschränkende Wirkung im Hinblick auf legale Datennutzung erzielen. Unsere Ergebnisse über von Nutzern wahrgenommene Risiken erlauben dabei Rückschlüsse auf die anwenderfreundliche Gestaltung von Verarbeitungszwecken im Sinne einer Design-Ressource.

  @article{jakobi_nutzerinnenfreundliche_2020,
  title = {Die {nutzerInnenfreundliche} {Formulierung} von {Zwecken} der {Datenverarbeitung} von {Sprachassistenten}},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/5161},
  abstract = {2019 wurde bekannt, dass mehrere Anbieter von Sprachassistenten Sprachaufnahmen ihrer NutzerInnen systematisch ausgewertet haben. Da in den Datenschutzhinweisen angegeben war, dass Daten auch zur Verbesserung des Dienstes genutzt würden, war diese Nutzung legal. Für die NutzerInnen stellte diese Auswertung jedoch einen deutlichen Bruch mit ihren Privatheitsvorstellungen dar. Das Zweckbindungsprinzip der DSGVO mit seiner Komponente der Zweckspezifizierung fordert neben Flexibilität für den Verarbeiter auch Transparenz für den Verbraucher. Vor dem Hintergrund dieses Interessenkonflikts stellt sich für die HCI die Frage, wie Verarbeitungszwecke von Sprachassistenten gestaltet sein sollten, um beide Anforderungen zu erfüllen. Für die Erhebung einer Nutzerperspektive analysiert diese Studie zunächst Zweckangaben in den Datenschutzhinweisen der dominierenden Sprachassistenten. Darauf aufbauend präsentieren wir Ergebnisse von Fokusgruppen, die sich mit der wahrgenommenen Verarbeitung von Daten von Sprachassistenten aus Nutzersicht befassen. Es zeigt sich, dass bestehende Zweckformulierungen für VerbraucherInnen kaum Transparenz über Folgen der Datenverarbeitung bieten und keine einschränkende Wirkung im Hinblick auf legale Datennutzung erzielen. Unsere Ergebnisse über von Nutzern wahrgenommene Risiken erlauben dabei Rückschlüsse auf die anwenderfreundliche Gestaltung von Verarbeitungszwecken im Sinne einer Design-Ressource.},
  language = {de},
  urldate = {2021-04-16},
  author = {Jakobi, Timo and Stevens, Gunnar and Grafenstein, Maximilian von and Pins, Dominik and Boden, Alexander},
  month = sep,
  year = {2020},
  }

• ---

  Lawo, D., Böhm, L. & Stevens, G. (2020)Veganaizer: AI-assisted Ingredient Substitution

  doi:10.13140/RG.2.2.18736.17922
  [BibTeX] [Abstract]

  Plant-based diets, once considered to be something of a fad, have now taken on an entirely new significance as the ecological consequences of diet choice have become more apparent; it is now acknowledged that dietary choices have significant consequences for sustainability. However, plant-based cooking and the veganization of recipes are things newcomers to these cuisines struggle with. Attempting to support sustainable food choices and the learning of plant-based cooking, we propose a novel end-to-end approach for AI-assisted recipe veganization called Veganaizer. To support people in finding matching plant-based substitutes for the ingredients of their favorite recipes, Veganaizer generates ranked lists of substitutes learned from their ingredient embeddings. The system is currently developed as part of an Android App. Veganaizer exploits the state-of-the-art word embedding algorithm fastText, trained on vegan and omnivorous recipes scraped from two popular German websites. In this paper, we describe the architecture of the system, conduct performance comparisons with a Word2vec-based approach to transform regional cuisine styles as well as a Singular Value Decomposition based approach, and discuss challenges of the Veganaizer model with two complementary qualitative case studies. Although the evaluation with a handcrafted validation data set shows a top-1 accuracy of 72.9\%, surpassing the best baseline model by 31\%, an expert-based evaluation identified limitations, but also capabilities, of the current approach. Based on these findings we formulate demand for future research.

  @book{lawo_veganaizer_2020,
  title = {Veganaizer: {AI}-assisted {Ingredient} {Substitution}},
  shorttitle = {Veganaizer},
  abstract = {Plant-based diets, once considered to be something of a fad, have now taken on an entirely new significance as the ecological consequences of diet choice have become more apparent; it is now acknowledged that dietary choices have significant consequences for sustainability. However, plant-based cooking and the veganization of recipes are things newcomers to these cuisines struggle with. Attempting to support sustainable food choices and the learning of plant-based cooking, we propose a novel end-to-end approach for AI-assisted recipe veganization called Veganaizer. To support people in finding matching plant-based substitutes for the ingredients of their favorite recipes, Veganaizer generates ranked lists of substitutes learned from their ingredient embeddings. The system is currently developed as part of an Android App. Veganaizer exploits the state-of-the-art word embedding algorithm fastText, trained on vegan and omnivorous recipes scraped from two popular German websites. In this paper, we describe the architecture of the system, conduct performance comparisons with a Word2vec-based approach to transform regional cuisine styles as well as a Singular Value Decomposition based approach, and discuss challenges of the Veganaizer model with two complementary qualitative case studies. Although the evaluation with a handcrafted validation data set shows a top-1 accuracy of 72.9\%, surpassing the best baseline model by 31\%, an expert-based evaluation identified limitations, but also capabilities, of the current approach. Based on these findings we formulate demand for future research.},
  author = {Lawo, Dennis and Böhm, Lukas and Stevens, Gunnar},
  month = sep,
  year = {2020},
  doi = {10.13140/RG.2.2.18736.17922},
  }

• ---

  Jakobi, T., Stevens, G., von Grafenstein, M., Pins, D. & Boden, A. (2020)User-friendly formulation of data processing purposes of voice assistants: a user perspective on the principle of purpose limitation

  Proceedings of the Conference on Mensch und Computer. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 361–372 doi:10.1145/3404983.3405588
  [BibTeX] [Abstract] [Download PDF]

  In 2019 it was revealed that several providers of voice assistants had systematically evaluated voice recordings of their users. Since the data protection notices stated that data would also be used to improve the service, this use was legal. For the users, however, this evaluation represented a clear break with their expectations of privacy. The purpose limitation principle of the GDPR with its component of purpose specification requires flexibility for the processor as well as transparency for the consumer. Against the background of this conflict of interest, the question arises for HCI as to how processing purposes of voice assistants should be designed to meet both requirements. To collect a user perspective, this study first analyzes the data protection information of the dominant voice assistants. Based on this, we present results of focus groups that deal with the perceived processing of data of voice assistants from the user perspective. The study shows that existing purpose statements offer hardly any transparency for consumers regarding the consequences of data processing and do not have any restrictive effect with regard to legal data use. Our results on risks perceived by users allow us to draw conclusions about the user-friendly design of processing purposes in terms of a design resource.

  @inproceedings{jakobi_user-friendly_2020,
  address = {New York, NY, USA},
  series = {{MuC} '20},
  title = {User-friendly formulation of data processing purposes of voice assistants: a user perspective on the principle of purpose limitation},
  isbn = {978-1-4503-7540-5},
  shorttitle = {User-friendly formulation of data processing purposes of voice assistants},
  url = {https://doi.org/10.1145/3404983.3405588},
  doi = {10.1145/3404983.3405588},
  abstract = {In 2019 it was revealed that several providers of voice assistants had systematically evaluated voice recordings of their users. Since the data protection notices stated that data would also be used to improve the service, this use was legal. For the users, however, this evaluation represented a clear break with their expectations of privacy. The purpose limitation principle of the GDPR with its component of purpose specification requires flexibility for the processor as well as transparency for the consumer. Against the background of this conflict of interest, the question arises for HCI as to how processing purposes of voice assistants should be designed to meet both requirements. To collect a user perspective, this study first analyzes the data protection information of the dominant voice assistants. Based on this, we present results of focus groups that deal with the perceived processing of data of voice assistants from the user perspective. The study shows that existing purpose statements offer hardly any transparency for consumers regarding the consequences of data processing and do not have any restrictive effect with regard to legal data use. Our results on risks perceived by users allow us to draw conclusions about the user-friendly design of processing purposes in terms of a design resource.},
  urldate = {2021-04-15},
  booktitle = {Proceedings of the {Conference} on {Mensch} und {Computer}},
  publisher = {Association for Computing Machinery},
  author = {Jakobi, Timo and Stevens, Gunnar and von Grafenstein, Maximilian and Pins, Dominik and Boden, Alexander},
  month = sep,
  year = {2020},
  keywords = {datenschutz, datenschutzerklärungen, legal design, zweckbindung, zweckspezifizierung},
  pages = {361--372},
  }

• ---

  Vaziri, D., Golchinfar, D., Stevens, G. & Schreiber, D. (2020)Exploring Future Work – Co-Designing a Human-robot Collaboration Environment for Service Domains

  Proceedings of the 2020 ACM Designing Interactive Systems Conference. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 153–164 doi:10.1145/3357236.3395483
  [BibTeX] [Abstract] [Download PDF]

  There has been increasing interest in the application of humanoid robots in service domains like retail or care homes in recent years. Here, most use cases focus on serving customer needs autonomously. Frequently, human intervention becomes necessary to support the robot in exceptional situations. However, direct intervention of service operators is often not possible and requires specialized personnel. In a co-design process with 13 service operators from a pharmacy, we designed a remote working environment for human-robot collaboration that enables first-time experiences and collaboration with robots. Five participants took part in an assessment study and reported on their experiences about the utility, usability and user experience. Results show that participants were able to control and train the robot through the remote control environment. We discuss implications of our results for future work in service domains and emphasize a shift of focus from full robot automatization to human-robot collaboration forms.

  @inproceedings{vaziri_exploring_2020,
  address = {New York, NY, USA},
  series = {{DIS} '20},
  title = {Exploring {Future} {Work} - {Co}-{Designing} a {Human}-robot {Collaboration} {Environment} for {Service} {Domains}},
  isbn = {978-1-4503-6974-9},
  url = {https://doi.org/10.1145/3357236.3395483},
  doi = {10.1145/3357236.3395483},
  abstract = {There has been increasing interest in the application of humanoid robots in service domains like retail or care homes in recent years. Here, most use cases focus on serving customer needs autonomously. Frequently, human intervention becomes necessary to support the robot in exceptional situations. However, direct intervention of service operators is often not possible and requires specialized personnel. In a co-design process with 13 service operators from a pharmacy, we designed a remote working environment for human-robot collaboration that enables first-time experiences and collaboration with robots. Five participants took part in an assessment study and reported on their experiences about the utility, usability and user experience. Results show that participants were able to control and train the robot through the remote control environment. We discuss implications of our results for future work in service domains and emphasize a shift of focus from full robot automatization to human-robot collaboration forms.},
  urldate = {2021-04-15},
  booktitle = {Proceedings of the 2020 {ACM} {Designing} {Interactive} {Systems} {Conference}},
  publisher = {Association for Computing Machinery},
  author = {Vaziri, Daryoush and Golchinfar, David and Stevens, Gunnar and Schreiber, Dirk},
  month = jul,
  year = {2020},
  keywords = {artificial intelligence, future work, human-robot collaboration, remote work, robots, teleoperation, user studies},
  pages = {153--164},
  }

• ---

  Meurer, J., Pakusch, C., Stevens, G., Randall, D. & Wulf, V. (2020)A Wizard of Oz Study on Passengers‘ Experiences of a Robo-Taxi Service in Real-Life Settings

  Proceedings of the 2020 ACM Designing Interactive Systems Conference. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1365–1377 doi:10.1145/3357236.3395465
  [BibTeX] [Abstract] [Download PDF]

  Autonomous driving enables new mobility concepts such as shared-autonomous services. Although significant re-search has been done on passenger-car interaction, work on passenger interaction with robo-taxis is still rare. In this paper, we tackle the question of how passengers experience robo-taxis as a service in real-life settings to inform the interaction design. We conducted a Wizard of Oz study with an electric vehicle where the driver was hidden from the passenger to simulate the service experience of a robo-taxi. 10 participants had the opportunity to use the simulated shared-autonomous service in real-life situations for one week. By the week’s end, 33 rides were completed and recorded on video. Also, we flanked the study conducting interviews before and after with all participants. The findings provided insights into four design themes that could inform the service design of robo-taxis along the different stages including hailing, pick-up, travel, and drop-off.

  @inproceedings{meurer_wizard_2020,
  address = {New York, NY, USA},
  series = {{DIS} '20},
  title = {A {Wizard} of {Oz} {Study} on {Passengers}' {Experiences} of a {Robo}-{Taxi} {Service} in {Real}-{Life} {Settings}},
  isbn = {978-1-4503-6974-9},
  url = {https://doi.org/10.1145/3357236.3395465},
  doi = {10.1145/3357236.3395465},
  abstract = {Autonomous driving enables new mobility concepts such as shared-autonomous services. Although significant re-search has been done on passenger-car interaction, work on passenger interaction with robo-taxis is still rare. In this paper, we tackle the question of how passengers experience robo-taxis as a service in real-life settings to inform the interaction design. We conducted a Wizard of Oz study with an electric vehicle where the driver was hidden from the passenger to simulate the service experience of a robo-taxi. 10 participants had the opportunity to use the simulated shared-autonomous service in real-life situations for one week. By the week's end, 33 rides were completed and recorded on video. Also, we flanked the study conducting interviews before and after with all participants. The findings provided insights into four design themes that could inform the service design of robo-taxis along the different stages including hailing, pick-up, travel, and drop-off.},
  urldate = {2021-04-15},
  booktitle = {Proceedings of the 2020 {ACM} {Designing} {Interactive} {Systems} {Conference}},
  publisher = {Association for Computing Machinery},
  author = {Meurer, Johanna and Pakusch, Christina and Stevens, Gunnar and Randall, Dave and Wulf, Volker},
  month = jul,
  year = {2020},
  keywords = {passengers, robo-taxi, service design, shared autonomous vehicles, wizard of oz},
  pages = {1365--1377},
  }

• ---

  Jakobi, T., von Grafenstein, M., Legner, C., Labadie, C., Mertens, P., Öksüz, A. & Stevens, G. (2020)The Role of IS in the Conflicting Interests Regarding GDPR

  IN Business & Information Systems Engineering, Vol. 62, Pages: 261–272 doi:10.1007/s12599-020-00633-4
  [BibTeX] [Download PDF]

  @article{jakobi_role_2020,
  title = {The {Role} of {IS} in the {Conflicting} {Interests} {Regarding} {GDPR}},
  volume = {62},
  issn = {2363-7005, 1867-0202},
  url = {http://link.springer.com/10.1007/s12599-020-00633-4},
  doi = {10.1007/s12599-020-00633-4},
  language = {en},
  number = {3},
  urldate = {2021-04-16},
  journal = {Business \& Information Systems Engineering},
  author = {Jakobi, Timo and von Grafenstein, Maximilian and Legner, Christine and Labadie, Clément and Mertens, Peter and Öksüz, Ayten and Stevens, Gunnar},
  month = jun,
  year = {2020},
  pages = {261--272},
  }

• ---

  Bossauer, P., Neifer, T., Stevens, G. & Pakusch, C. (2020)Trust versus Privacy: Using Connected Car Data in Peer-to-Peer Carsharing

  Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1–13 doi:10.1145/3313831.3376555
  [BibTeX] [Abstract] [Download PDF]

  Trust is the lubricant of the sharing economy. This is true especially in peer-to-peer carsharing, in which one leaves a highly valuable good to a stranger in the hope of getting it back unscathed. Nowadays, ratings of other users are major mechanisms for establishing trust. To foster uptake of peer-to-peer carsharing, connected car technology opens new possibilities to support trust-building, e.g., by adding driving behavior statistics to users‘ profiles. However, collecting such data intrudes into rentees‘ privacy. To explore the tension between the need for trust and privacy demands, we conducted three focus group and eight individual interviews. Our results show that connected car technologies can increase trust for car owners and rentees not only before but also during and after rentals. The design of such systems must allow a differentiation between information in terms of type, the context, and the negotiability of information disclosure.

  @inproceedings{bossauer_trust_2020,
  address = {New York, NY, USA},
  series = {{CHI} '20},
  title = {Trust versus {Privacy}: {Using} {Connected} {Car} {Data} in {Peer}-to-{Peer} {Carsharing}},
  isbn = {978-1-4503-6708-0},
  shorttitle = {Trust versus {Privacy}},
  url = {https://doi.org/10.1145/3313831.3376555},
  doi = {10.1145/3313831.3376555},
  abstract = {Trust is the lubricant of the sharing economy. This is true especially in peer-to-peer carsharing, in which one leaves a highly valuable good to a stranger in the hope of getting it back unscathed. Nowadays, ratings of other users are major mechanisms for establishing trust. To foster uptake of peer-to-peer carsharing, connected car technology opens new possibilities to support trust-building, e.g., by adding driving behavior statistics to users' profiles. However, collecting such data intrudes into rentees' privacy. To explore the tension between the need for trust and privacy demands, we conducted three focus group and eight individual interviews. Our results show that connected car technologies can increase trust for car owners and rentees not only before but also during and after rentals. The design of such systems must allow a differentiation between information in terms of type, the context, and the negotiability of information disclosure.},
  urldate = {2021-04-15},
  booktitle = {Proceedings of the 2020 {CHI} {Conference} on {Human} {Factors} in {Computing} {Systems}},
  publisher = {Association for Computing Machinery},
  author = {Bossauer, Paul and Neifer, Thomas and Stevens, Gunnar and Pakusch, Christina},
  month = apr,
  year = {2020},
  keywords = {a-paper, privacy, connected car, peer-to-peer carsharing, trust},
  pages = {1--13},
  }

• ---

  Pakusch, C., Bossauer, P., Meurer, J. & Stevens, G. (2020)Walking the Tightrope: Designing Autonomous Vehicles for Comfort and for Sustainability

  [BibTeX] [Abstract]

  Given current traffic problems, transport-induced air pollution and climate damaging emissions, researchers are investigating potentials of autonomous vehicles (AVs) to contribute to a more sustainable mobility. Some studies, however, indicate that the introduction of AVs may cause rebound effects that could further harm the environment such unintended modal shifts. Currently focusing on user experience design, there is an urgent need for HCI researchers to consider such negative consequences in order to responsibly design sustainable AVs.

  @book{pakusch_walking_2020,
  title = {Walking the {Tightrope}: {Designing} {Autonomous} {Vehicles} for {Comfort} and for {Sustainability}},
  shorttitle = {Walking the {Tightrope}},
  abstract = {Given current traffic problems, transport-induced air pollution and climate damaging emissions, researchers are investigating potentials of autonomous vehicles (AVs) to contribute to a more sustainable mobility. Some studies, however, indicate that the introduction of AVs may cause rebound effects that could further harm the environment such unintended modal shifts. Currently focusing on user experience design, there is an urgent need for HCI researchers to consider such negative consequences in order to responsibly design sustainable AVs.},
  author = {Pakusch, Christina and Bossauer, Paul and Meurer, Johanna and Stevens, Gunnar},
  month = apr,
  year = {2020},
  }

• ---

  Castelli, N., Taugerbeck, S., Stein, M., Jakobi, T., Stevens, G. & Wulf, V. (2020)Eco-InfoVis at Work: Role-based Eco-Visualizations for the Industrial Context

  IN Proceedings of the ACM on Human-Computer Interaction, Vol. 4, Pages: 02:1–02:27 doi:10.1145/3375182
  [BibTeX] [Abstract] [Download PDF]

  Currently, there is a broad range of studies dealing with the design and visualization of energy consumption data for the domestic and increasingly for the office context. However, studies addressing the industrial context are quite rare, and due to the diversity of machines, processes, tasks, personal motivations, teams and the specific organizational culture of companies, it is not sufficient to provide only consumption data. For an adequate consideration of these factors, detailed design guidelines and system concepts are currently missing. However, this study shows the potential that a common understanding of consumption data can emerge through suitable visualization to support everyday work and possibilities of data sharing. Therefore, we show exemplarily how a design can be derived from empirically collected requirements and how a system concept can look like that enrich current eco-feedback design research for the industrial context.

  @article{castelli_eco-infovis_2020,
  title = {Eco-{InfoVis} at {Work}: {Role}-based {Eco}-{Visualizations} for the {Industrial} {Context}},
  volume = {4},
  shorttitle = {Eco-{InfoVis} at {Work}},
  url = {https://doi.org/10.1145/3375182},
  doi = {10.1145/3375182},
  abstract = {Currently, there is a broad range of studies dealing with the design and visualization of energy consumption data for the domestic and increasingly for the office context. However, studies addressing the industrial context are quite rare, and due to the diversity of machines, processes, tasks, personal motivations, teams and the specific organizational culture of companies, it is not sufficient to provide only consumption data. For an adequate consideration of these factors, detailed design guidelines and system concepts are currently missing. However, this study shows the potential that a common understanding of consumption data can emerge through suitable visualization to support everyday work and possibilities of data sharing. Therefore, we show exemplarily how a design can be derived from empirically collected requirements and how a system concept can look like that enrich current eco-feedback design research for the industrial context.},
  number = {GROUP},
  urldate = {2021-04-15},
  journal = {Proceedings of the ACM on Human-Computer Interaction},
  author = {Castelli, Nico and Taugerbeck, Sebastian and Stein, Martin and Jakobi, Timo and Stevens, Gunnar and Wulf, Volker},
  month = jan,
  year = {2020},
  keywords = {a-paper, eco-feedback, data visualization, iiot, iot, sid},
  pages = {02:1--02:27},
  }

• ---

  Lawo, D., Esau, M., Engelbutzeder, P. & Stevens, G. (2020)Going Vegan: The Role(s) of ICT in Vegan Practice Transformation

  IN Sustainability, Vol. 12, Pages: 5184 doi:10.3390/su12125184
  [BibTeX] [Abstract] [Download PDF]

  With the debate on climate change, topics of diet change and the reduction of animal products have become increasingly important in both public and academic discourses. However, sustainable ICT studies have so far focused on individual aspects, in particular investigating the criticized persuasive design approach. We argue for a broader perspective on the role(s) of ICT, one that helps in identifying opportunities to support consumer practice transformation, beyond motivational aspects. Based on retrospective interviews with 16 vegans, we argue to understand practice transformation as co-evolution of practices and ICT artefacts, as this perspective helps to understand how tensions arising from complex entanglements of practices, socio-material contexts, and communities can be resolved. Rather than a motivational process, we observe various roles of ICT artefacts co-evolving with practices: Ranging from initial irritation, to access to information about vegan practices, to the learning of vegan food literacy, to the negotiation of a vegan identity, and vegan norms at the intersection of the ‘odd’ and the ‘norm’.

  @article{lawo_going_2020,
  title = {Going {Vegan}: {The} {Role}(s) of {ICT} in {Vegan} {Practice} {Transformation}},
  volume = {12},
  copyright = {http://creativecommons.org/licenses/by/3.0/},
  shorttitle = {Going {Vegan}},
  url = {https://www.mdpi.com/2071-1050/12/12/5184},
  doi = {10.3390/su12125184},
  abstract = {With the debate on climate change, topics of diet change and the reduction of animal products have become increasingly important in both public and academic discourses. However, sustainable ICT studies have so far focused on individual aspects, in particular investigating the criticized persuasive design approach. We argue for a broader perspective on the role(s) of ICT, one that helps in identifying opportunities to support consumer practice transformation, beyond motivational aspects. Based on retrospective interviews with 16 vegans, we argue to understand practice transformation as co-evolution of practices and ICT artefacts, as this perspective helps to understand how tensions arising from complex entanglements of practices, socio-material contexts, and communities can be resolved. Rather than a motivational process, we observe various roles of ICT artefacts co-evolving with practices: Ranging from initial irritation, to access to information about vegan practices, to the learning of vegan food literacy, to the negotiation of a vegan identity, and vegan norms at the intersection of the \‘odd\’ and the \‘norm\’.},
  language = {en},
  number = {12},
  urldate = {2021-04-16},
  journal = {Sustainability},
  author = {Lawo, Dennis and Esau, Margarita and Engelbutzeder, Philip and Stevens, Gunnar},
  month = jan,
  year = {2020},
  note = {Number: 12
  Publisher: Multidisciplinary Digital Publishing Institute},
  keywords = {sustainability, design, co-evolution, consumer informatics, ICT, practice theory, vegan},
  pages = {5184},
  }

• ---

  Weibert, A., Aal, K., Krüger, M., Ahmadi, M., Stevens, G. & Wulf, V. (2020)COMPUTATIONAL MAKING WITH, Designing Constructionist Futures: The Art, Theory, and Practice of Learning Designs

  IN Designing Constructionist Futures: The Art, Theory, and Practice of Learning Designs
  [BibTeX]

  @incollection{weibert_computational_2020,
  title = {{COMPUTATIONAL} {MAKING} {WITH}, {Designing} {Constructionist} {Futures}: {The} {Art}, {Theory}, and {Practice} of {Learning} {Designs}},
  isbn = {978-0-262-53984-5},
  language = {en},
  booktitle = {Designing {Constructionist} {Futures}: {The} {Art}, {Theory}, and {Practice} of {Learning} {Designs}},
  publisher = {MIT Press},
  author = {Weibert, Anne and Aal, Konstantin and Krüger, Maximilian and Ahmadi, Michael and Stevens, Gunnar and Wulf, Volker},
  year = {2020},
  note = {Google-Books-ID: ehUAEAAAQBAJ},
  pages = {185--191},
  }

• ---

  Lawo, D., Engelbutzeder, P., Esau, M. & Stevens, G. (2020)Networks of Practices: Exploring Design Opportunities for Interconnected Practices

  doi:10.18420/ecscw2020_ep03
  [BibTeX] [Abstract] [Download PDF]

  For over a decade, researchers from the practice-centered computing community are taking social practices as a unit of design. While the first generation focused on a social practice in isolation, more recent work argues for the (inter-)connections of mutually influencing practices as the primary unit of design. We discuss these current approaches to motivate the notion of a network of practices. Utilizing the case of food practices, we construct and analyze a network populated by the answers of 60 participants. Based on this network we suggest how to identify central elements and clusters as well as points for intervention within the overall network, but also within and in-between clusters of practices. Based on this, our work critically discusses how an understanding of practices as a network could improve practice-based research and design.

  @article{lawo_networks_2020,
  title = {Networks of {Practices}: {Exploring} {Design} {Opportunities} for {Interconnected} {Practices}},
  issn = {2510-2591},
  shorttitle = {Networks of {Practices}},
  url = {https://dl.eusset.eu/handle/20.500.12015/3408},
  doi = {10.18420/ecscw2020_ep03},
  abstract = {For over a decade, researchers from the practice-centered computing community are taking social practices as a unit of design. While the first generation focused on a social practice in isolation, more recent work argues for the (inter-)connections of mutually influencing practices as the primary unit of design. We discuss these current approaches to motivate the notion of a network of practices. Utilizing the case of food practices, we construct and analyze a network populated by the answers of 60 participants. Based on this network we suggest how to identify central elements and clusters as well as points for intervention within the overall network, but also within and in-between clusters of practices. Based on this, our work critically discusses how an understanding of practices as a network could improve practice-based research and design.},
  language = {en},
  urldate = {2021-04-16},
  author = {Lawo, Dennis and Engelbutzeder, Philip and Esau, Margarita and Stevens, Gunnar},
  year = {2020},
  note = {Accepted: 2020-06-05T23:52:34Z
  Publisher: European Society for Socially Embedded Technologies (EUSSET)},
  }

• ---

  Bossauer, P., Schreiber, D., Neifer, T., Pakusch, C. & Stevens, G. (2020)Dezentralisierung der Sharing Economy – Potentiale Blockchain-basierter Sharing-Plattformen

  Wirtschaftsinformatik. doi:10.30844/wi_2020_b3-bossauer
  [BibTeX] [Abstract]

  Bei genauer Betrachtung heutiger Sharing Plattformen wie AirBnB, Uber, Drivy oder Fairleihen fallt auf, dass diese eines gemein haben. Als Plattformokonomien basieren sie auf mindestens zwei Nutzergruppen, Anbietern und Nachfragern fur Guter oder Dienstleistungen. Ein Problem solcher zweioder mehrseitigen Markte ist jedoch haufig, dass der Wertezuwachs, der durch die Nutzer generiert wird, nicht gleichmasig unter der Plattform und den aktiven Nutzern verteilt wird, sondern meist ausschlieslich als Gewinn an die Plattformen geht. Mit der Blockchain-Technologie konnte dieses Problem gelost werden, indem der Informations- und Wertetransfer sicher und dezentral organisiert wird und viele Funktionen traditioneller Intermediare dadurch obsolet werden. Diese Arbeit bietet einen Uberblick uber Anwendungsfelder und das Grundkonzept der Sharing Economy. Wir zeigen auf, wie sich Geschaftsmodelle und Infrastrukturen in einer Blockchain abbilden lassen, welche Potentiale eine Blockchain-basierte Infrastruktur bietet, wann diese in der Sharing Economy sinnvoll sein kann und welche Probleme dadurch gelost werden konnen.

  @inproceedings{bossauer_dezentralisierung_2020,
  title = {Dezentralisierung der {Sharing} {Economy} - {Potentiale} {Blockchain}-basierter {Sharing}-{Plattformen}},
  doi = {10.30844/wi_2020_b3-bossauer},
  abstract = {Bei genauer Betrachtung heutiger Sharing Plattformen wie AirBnB, Uber, Drivy oder Fairleihen fallt auf, dass diese eines gemein haben. Als Plattformokonomien basieren sie auf mindestens zwei Nutzergruppen, Anbietern und Nachfragern fur Guter oder Dienstleistungen. Ein Problem solcher zweioder mehrseitigen Markte ist jedoch haufig, dass der Wertezuwachs, der durch die Nutzer generiert wird, nicht gleichmasig unter der Plattform und den aktiven Nutzern verteilt wird, sondern meist ausschlieslich als Gewinn an die Plattformen geht. Mit der Blockchain-Technologie konnte dieses Problem gelost werden, indem der Informations- und Wertetransfer sicher und dezentral organisiert wird und viele Funktionen traditioneller Intermediare dadurch obsolet werden. Diese Arbeit bietet einen Uberblick uber Anwendungsfelder und das Grundkonzept der Sharing Economy. Wir zeigen auf, wie sich Geschaftsmodelle und Infrastrukturen in einer Blockchain abbilden lassen, welche Potentiale eine Blockchain-basierte Infrastruktur bietet, wann diese in der Sharing Economy sinnvoll sein kann und welche Probleme dadurch gelost werden konnen.},
  booktitle = {Wirtschaftsinformatik},
  author = {Bossauer, Paul and Schreiber, D. and Neifer, Thomas and Pakusch, Christina and Stevens, Gunnar},
  year = {2020},
  }

• ---

  Alizadeh, F., Esau, M., Stevens, G. & Cassens, L. (2020)eXplainable AI: Take one Step Back, Move two Steps forward

  doi:10.18420/muc2020-ws111-369
  [BibTeX] [Abstract] [Download PDF]

  In 1991 the researchers at the center for the Learning Sciences of Carnegie Mellon University were confronted with the confusing question of “where is AI” from the users, who were interacting with AI but did not realize it. Three decades of research and we are still facing the same issue with the AItechnology users. In the lack of users’ awareness and mutual understanding of AI-enabled systems between designers and users, informal theories of the users about how a system works (“Folk theories”) become inevitable but can lead to misconceptions and ineffective interactions. To shape appropriate mental models of AI-based systems, explainable AI has been suggested by AI practitioners. However, a profound understanding of the current users’ perception of AI is still missing. In this study, we introduce the term “Perceived AI” as “AI defined from the perspective of its users”. We then present our preliminary results from deep-interviews with 50 AItechnology users, which provide a framework for our future research approach towards a better understanding of PAI and users’ folk theories.

  @article{alizadeh_explainable_2020,
  title = {{eXplainable} {AI}: {Take} one {Step} {Back}, {Move} two {Steps} forward},
  shorttitle = {{eXplainable} {AI}},
  url = {http://dl.gi.de/handle/20.500.12116/33513},
  doi = {10.18420/muc2020-ws111-369},
  abstract = {In 1991 the researchers at the center for the Learning Sciences of Carnegie Mellon University were confronted with the confusing question of “where is AI” from the users, who were interacting with AI but did not realize it. Three decades of research and we are still facing the same issue with the AItechnology users. In the lack of users’ awareness and mutual understanding of AI-enabled systems between designers and users, informal theories of the users about how a system works (“Folk theories”) become inevitable but can lead to misconceptions and ineffective interactions. To shape appropriate mental models of AI-based systems, explainable AI has been suggested by AI practitioners. However, a profound understanding of the current users’ perception of AI is still missing. In this study, we introduce the term “Perceived AI” as “AI defined from the perspective of its users”. We then present our preliminary results from deep-interviews with 50 AItechnology users, which provide a framework for our future research approach towards a better understanding of PAI and users’ folk theories.},
  language = {en},
  urldate = {2021-04-15},
  author = {Alizadeh, Fatemeh and Esau, Margarita and Stevens, Gunnar and Cassens, Lena},
  year = {2020},
  note = {Accepted: 2020-08-18T15:19:49Z
  Publisher: Gesellschaft für Informatik e.V.},
  }

• ---

  Pakusch, C., Bossauer, P. & Stevens, G. (2020)The Unintended Social Consequences of Driverless Mobility Services – How will Taxi Drivers and their Customers Be Affected?

  , Bristol, UK doi:10.1145/3401335.3401346
  [BibTeX] [Download PDF]

  @book{pakusch_unintended_2020,
  address = {Bristol, UK},
  title = {The {Unintended} {Social} {Consequences} of {Driverless} {Mobility} {Services} – {How} will {Taxi} {Drivers} and their {Customers} {Be} {Affected}?},
  url = {https://www.wineme.uni-siegen.de/wp-content/uploads/2020/06/Social-Consequences_Preprint.pdf},
  author = {Pakusch, Christina and Bossauer, Paul and Stevens, Gunnar},
  year = {2020},
  doi = {10.1145/3401335.3401346},
  annote = {Publication Title: ICT4S2020},
  }

• ---

  Pins, D., Boden, A., Essing, B. & Stevens, G. (2020)„Miss Understandable“ – Eine Studie zur Aneignung von Sprachassistenten und dem Umgang mit Fehlinteraktionen

  doi:10.1145/3404983.3405511
  [BibTeX] [Abstract] [Download PDF]

  Diese Studie untersucht die Aneignung und Nutzung von Sprachassistenten wie Google Assistant oder Amazon Alexa in Privathaushalten. Unsere Forschung basiert auf zehn Tiefeninterviews mit Nutzern von Sprachassistenten sowie der Evaluation bestimmter Interaktionen in der Interaktions-historie. Unsere Ergebnisse illustrieren, zu welchen Anlässen Sprachassistenten im heimischen Umfeld genutzt werden, welche Strategien sich die Nutzer in der Interaktion mit Sprachassistenten angeeignet haben, wie die Interaktion abläuft und welche Schwierigkeiten sich bei der Einrichtung und Nutzung des Sprachassistenten ergeben haben. Ein besonderer Fokus der Studie liegt auf Fehlinteraktionen, also Situationen, in denen die Interaktion scheitert oder zu scheitern droht. Unsere Studie zeigt, dass das Nutzungspotenzial der Assistenten häufig nicht ausgeschöpft wird, da die Interaktion in komplexeren Anwendungsfällen häufig misslingt. Die Nutzer verwenden daher den Sprachassistenten eher in einfachen Anwendungsfällen und neue Apps und Anwendungsfälle werden gar nicht erst ausprobiert. Eine Analyse der Aneignungsstrategien, beispielsweise durch eine selbst erstellte Liste mit Befehlen, liefert Erkenntnisse für die Gestaltung von Unterstützungswerkzeugen sowie die Weiterentwicklung und Optimierung von sprachbasierten Mensch-Maschine-Interfaces.

  @article{pins_miss_2020-1,
  title = {„{Miss} {Understandable}“ - {Eine} {Studie} zur {Aneignung} von {Sprachassistenten} und dem {Umgang} mit {Fehlinteraktionen}},
  url = {http://dl.gi.de/handle/20.500.12116/34282},
  doi = {10.1145/3404983.3405511},
  abstract = {Diese Studie untersucht die Aneignung und Nutzung von Sprachassistenten wie Google Assistant oder Amazon Alexa in Privathaushalten. Unsere Forschung basiert auf zehn Tiefeninterviews mit Nutzern von Sprachassistenten sowie der Evaluation bestimmter Interaktionen in der Interaktions-historie. Unsere Ergebnisse illustrieren, zu welchen Anlässen Sprachassistenten im heimischen Umfeld genutzt werden, welche Strategien sich die Nutzer in der Interaktion mit Sprachassistenten angeeignet haben, wie die Interaktion abläuft und welche Schwierigkeiten sich bei der Einrichtung und Nutzung des Sprachassistenten ergeben haben. Ein besonderer Fokus der Studie liegt auf Fehlinteraktionen, also Situationen, in denen die Interaktion scheitert oder zu scheitern droht. Unsere Studie zeigt, dass das Nutzungspotenzial der Assistenten häufig nicht ausgeschöpft wird, da die Interaktion in komplexeren Anwendungsfällen häufig misslingt. Die Nutzer verwenden daher den Sprachassistenten eher in einfachen Anwendungsfällen und neue Apps und Anwendungsfälle werden gar nicht erst ausprobiert. Eine Analyse der Aneignungsstrategien, beispielsweise durch eine selbst erstellte Liste mit Befehlen, liefert Erkenntnisse für die Gestaltung von Unterstützungswerkzeugen sowie die Weiterentwicklung und Optimierung von sprachbasierten Mensch-Maschine-Interfaces.},
  language = {de},
  urldate = {2021-04-16},
  author = {Pins, Dominik and Boden, Alexander and Essing, Britta and Stevens, Gunnar},
  year = {2020},
  note = {Accepted: 2020-09-16T07:52:33Z
  Publisher: ACM},
  }

• ---

  Stevens, G. & Bossauer, P. (2020)Who do you trust: Peers or Technology? A conjoint analysis about computational reputation mechanisms

  doi:10.18420/ecscw2020_ep01
  [BibTeX] [Abstract] [Download PDF]

  Peer-to-peer sharing platforms are taking over an increasingly important role in the platform economy due to their sustainable business model. By sharing private goods and services, the challenge arises to build trust between peers online mostly without any kind of physical presence. Peer rating has been proven as an important mechanism. In this paper, we explore the concept called Trust Score, a computational rating mechanism adopted from car telematics, which can play a similar role in carsharing. For this purpose, we conducted a conjoint analysis where 77 car owners chose between fictitious user profiles. Our results show that in our experiment the telemetric-based score slightly outperforms the peer rating in the decision process, while the participants perceived the peer rating more helpful in retrospect. Further, we discuss potential benefits with regard to existing shortcomings of user rating, but also various concerns that should be considered in concepts like telemetric-based reputation mechanism that supplements existing trust factors such as user ratings.

  @article{stevens_who_2020,
  title = {Who do you trust: {Peers} or {Technology}? {A} conjoint analysis about computational reputation mechanisms},
  issn = {2510-2591},
  shorttitle = {Who do you trust},
  url = {https://dl.eusset.eu/handle/20.500.12015/3402},
  doi = {10.18420/ecscw2020_ep01},
  abstract = {Peer-to-peer sharing platforms are taking over an increasingly important role in the platform economy due to their sustainable business model. By sharing private goods and services, the challenge arises to build trust between peers online mostly without any kind of physical presence. Peer rating has been proven as an important mechanism. In this paper, we explore the concept called Trust Score, a computational rating mechanism adopted from car telematics, which can play a similar role in carsharing. For this purpose, we conducted a conjoint analysis where 77 car owners chose between fictitious user profiles. Our results show that in our experiment the telemetric-based score slightly outperforms the peer rating in the decision process, while the participants perceived the peer rating more helpful in retrospect. Further, we discuss potential benefits with regard to existing shortcomings of user rating, but also various concerns that should be considered in concepts like telemetric-based reputation mechanism that supplements existing trust factors such as user ratings.},
  language = {en},
  urldate = {2021-04-16},
  author = {Stevens, Gunnar and Bossauer, Paul},
  year = {2020},
  note = {Accepted: 2020-06-05T23:52:33Z
  Publisher: European Society for Socially Embedded Technologies (EUSSET)},
  }

• ---

  Hahn, A., Pakusch, C. & Stevens, G. (2020)Die Zukunft der Bushaltestelle vor dem Hintergrund von Mobility-as-a-Service – Eine qualitative Betrachtung des öffentlichen Personennahverkehrs in Deutschland

  IN HMD Praxis der Wirtschaftsinformatik, Pages: 18
  [BibTeX] [Abstract]

  In the recent past, the Federal Republic of Germany has experienced an increase in diesel driving bans in large cities. At the same time, large cities are becoming increasingly popular as the centre of life. Transport companies need to offer the population sustainable mobility solutions that enable maximum flexibility. Modern Mobility-as-a-Service-concepts and innovations in mobility are questioning the classic, plan-oriented, local public transport system and thus also the existence of bus stops. Qualitative expert interviews show that bus stops in city centres will change: One reason being the increasing digital networking of mobility providers and the resulting modern Mobility-as-a-Service-concepts. The results indicate that the bus stop in the inner cities will remain in the future and will be supplemented by on-demand traffic. A radical change, such as the nationwide adoption of autonomous buses, could lead to a complete renewal of the bus stop in the long term.

  @article{hahn_zukunft_2020,
  title = {Die {Zukunft} der {Bushaltestelle} vor dem {Hintergrund} von {Mobility}-as-a-{Service} – {Eine} qualitative {Betrachtung} des öffentlichen {Personennahverkehrs} in {Deutschland}},
  abstract = {In the recent past, the Federal Republic of Germany has experienced an increase in diesel driving bans in large cities. At the same time, large cities are becoming increasingly popular as the centre of life. Transport companies need to offer the population sustainable mobility solutions that enable maximum flexibility. Modern Mobility-as-a-Service-concepts and innovations in mobility are questioning the classic, plan-oriented, local public transport system and thus also the existence of bus stops. Qualitative expert interviews show that bus stops in city centres will change: One reason being the increasing digital networking of mobility providers and the resulting modern Mobility-as-a-Service-concepts. The results indicate that the bus stop in the inner cities will remain in the future and will be supplemented by on-demand traffic. A radical change, such as the nationwide adoption of autonomous buses, could lead to a complete renewal of the bus stop in the long term.},
  language = {de},
  journal = {HMD Praxis der Wirtschaftsinformatik},
  author = {Hahn, Andreas and Pakusch, Christina and Stevens, Gunnar},
  year = {2020},
  pages = {18},
  }

• ---

  Winter, D. & Stevens, G. (2020)Maßnahmen zur Steigerung der organisationalen UX-Kompetenz

  doi:10.18420/muc2020-ws03-002
  [BibTeX] [Abstract] [Download PDF]

  Usability und User Experience (UX) haben als Design-Aspekte in der Produktentwicklung zunehmend an Bedeutung gewonnen. Daher ist es sinnvoll, die organisationale Kompetenz zur Ent-wicklung von Produkten mit einer positiven UX zu stärken. Ver-änderungen in Organisationen sind jedoch mit großem Aufwand verbunden. Deshalb müssen Organisationen entscheiden, welche Aktivitäten zur Veränderung der eigenen Kompetenz durchge-führt werden sollen und welche nicht. Die bisherige Forschung hat sich weitgehend auf die Anwendbarkeit bestimmter Metho-den im Projekt- und Produktkontext konzentriert. Um geeignete Aktivitäten zur Verbesserung der organisationalen UX-Kompetenz zu identifizieren, wurden 17 UX-Professionals be-fragt. Diese UX-Professionals haben mindestens zehn Jahre Er-fahrung durch die Arbeit in mehreren Unternehmen und durch die Übernahme einer Führungsrolle im Bereich UX gesammelt. Aus diesen Interviews wurden 13 mögliche Maßnahmen zur Steigerung der UX-Kompetenz von Organisationen abgeleitet. Dazu gehören beispielsweise die Erhöhung der Kompetenz ein-zelner Mitarbeiter, das Teilen von UX-Erfolgsgeschichten oder das Ermöglichen von User Research.

  @article{winter_masnahmen_2020,
  title = {Maßnahmen zur {Steigerung} der organisationalen {UX}-{Kompetenz}},
  url = {http://dl.gi.de/handle/20.500.12116/34208},
  doi = {10.18420/muc2020-ws03-002},
  abstract = {Usability und User Experience (UX) haben als Design-Aspekte in der Produktentwicklung zunehmend an Bedeutung gewonnen. Daher ist es sinnvoll, die organisationale Kompetenz zur Ent-wicklung von Produkten mit einer positiven UX zu stärken. Ver-änderungen in Organisationen sind jedoch mit großem Aufwand verbunden. Deshalb müssen Organisationen entscheiden, welche Aktivitäten zur Veränderung der eigenen Kompetenz durchge-führt werden sollen und welche nicht. Die bisherige Forschung hat sich weitgehend auf die Anwendbarkeit bestimmter Metho-den im Projekt- und Produktkontext konzentriert. Um geeignete Aktivitäten zur Verbesserung der organisationalen UX-Kompetenz zu identifizieren, wurden 17 UX-Professionals be-fragt. Diese UX-Professionals haben mindestens zehn Jahre Er-fahrung durch die Arbeit in mehreren Unternehmen und durch die Übernahme einer Führungsrolle im Bereich UX gesammelt. Aus diesen Interviews wurden 13 mögliche Maßnahmen zur Steigerung der UX-Kompetenz von Organisationen abgeleitet. Dazu gehören beispielsweise die Erhöhung der Kompetenz ein-zelner Mitarbeiter, das Teilen von UX-Erfolgsgeschichten oder das Ermöglichen von User Research.},
  language = {de},
  urldate = {2021-04-16},
  author = {Winter, Dominique and Stevens, Gunnar},
  year = {2020},
  note = {Accepted: 2020-09-09T15:02:15Z
  Publisher: Gesellschaft für Informatik e.V.},
  }

2019

• ---

  Lawo, D., Engelbutzeder, P., Esau, M. & Stevens, G. (2019)Towards a Network of Practices: Identifying Central Elements to Inform Design

  Proceedings of the Halfway to the Future Symposium 2019. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 1–4 doi:10.1145/3363384.3363470
  [BibTeX] [Abstract] [Download PDF]

  For over a decade researchers from the HCI community are taking social practices as a unit of design. While the first generation focused on social practice in isolation, more recent work argues for the interrelatedness of mutually influencing practices as the primary unit of analysis. We discuss these current approaches to motivate the notion of a network of practices. We argue that network theory presents a promising method to create more detailed and sophisticated models of social practices, that raise awareness about central elements and their connecting characteristics. Further on, our work identifies open questions that should be addressed in future work, to increase the benefits of the method.

  @inproceedings{lawo_towards_2019,
  address = {New York, NY, USA},
  series = {{HTTF} 2019},
  title = {Towards a {Network} of {Practices}: {Identifying} {Central} {Elements} to {Inform} {Design}},
  isbn = {978-1-4503-7203-9},
  shorttitle = {Towards a {Network} of {Practices}},
  url = {https://doi.org/10.1145/3363384.3363470},
  doi = {10.1145/3363384.3363470},
  abstract = {For over a decade researchers from the HCI community are taking social practices as a unit of design. While the first generation focused on social practice in isolation, more recent work argues for the interrelatedness of mutually influencing practices as the primary unit of analysis. We discuss these current approaches to motivate the notion of a network of practices. We argue that network theory presents a promising method to create more detailed and sophisticated models of social practices, that raise awareness about central elements and their connecting characteristics. Further on, our work identifies open questions that should be addressed in future work, to increase the benefits of the method.},
  urldate = {2021-04-16},
  booktitle = {Proceedings of the {Halfway} to the {Future} {Symposium} 2019},
  publisher = {Association for Computing Machinery},
  author = {Lawo, Dennis and Engelbutzeder, Philip and Esau, Margarita and Stevens, Gunnar},
  month = nov,
  year = {2019},
  keywords = {Consumption, Food Lifecycle, Network of Practices, Practice Theory, Third Wave of HCI},
  pages = {1--4},
  }

• ---

  Lawo, D., Litz, K., Gromov, C., Schwärzer, H. & Stevens, G. (2019)Going Vegan: The Use of digital Media in vegan Diet Transition

  Proceedings of Mensch und Computer 2019. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 503–507 doi:10.1145/3340764.3344447
  [BibTeX] [Abstract] [Download PDF]

  Previous attempts of the HCI community to reduce food waste or the carbon footprint, primarily relied on persuasive design. However, these approaches are criticized for not paying enough attention to everyday consumption practices and hence for not being successful in the long term. Therefore, we argue for a broader perspective on studying the role(s) of digital media supporting people in their transition towards more sustainable food consumption. To understand such roles, we conducted semi-structured interviews with 9 vegans. Our findings highlight an intensive use of (digital) media, especially in the early phase of changing consumption practices. Instead of gamification or persuasive design, media triggers initial irritation, provides information to develop a vegan-specific consumption knowledge and connects like-minded people.

  @inproceedings{lawo_going_2019,
  address = {New York, NY, USA},
  series = {{MuC}'19},
  title = {Going {Vegan}: {The} {Use} of digital {Media} in vegan {Diet} {Transition}},
  isbn = {978-1-4503-7198-8},
  shorttitle = {Going {Vegan}},
  url = {https://doi.org/10.1145/3340764.3344447},
  doi = {10.1145/3340764.3344447},
  abstract = {Previous attempts of the HCI community to reduce food waste or the carbon footprint, primarily relied on persuasive design. However, these approaches are criticized for not paying enough attention to everyday consumption practices and hence for not being successful in the long term. Therefore, we argue for a broader perspective on studying the role(s) of digital media supporting people in their transition towards more sustainable food consumption. To understand such roles, we conducted semi-structured interviews with 9 vegans. Our findings highlight an intensive use of (digital) media, especially in the early phase of changing consumption practices. Instead of gamification or persuasive design, media triggers initial irritation, provides information to develop a vegan-specific consumption knowledge and connects like-minded people.},
  urldate = {2021-04-16},
  booktitle = {Proceedings of {Mensch} und {Computer} 2019},
  publisher = {Association for Computing Machinery},
  author = {Lawo, Dennis and Litz, Katharina and Gromov, Christina and Schwärzer, Hannah and Stevens, Gunnar},
  month = sep,
  year = {2019},
  keywords = {Human Food Interaction, Sustainable Interaction Design, Vegan},
  pages = {503--507},
  }

• ---

  Golchinfar, D., Vaziri, D. D., Schreiber, D. & Stevens, G. (2019)Assisting Service Robots on their Journey to Become Autonomous Agents: From Apprentice to Master by Participatory Observation

  Proceedings of Mensch und Computer 2019. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 889–891 doi:10.1145/3340764.3345374
  [BibTeX] [Abstract] [Download PDF]

  Natural and reliable application of service robots (SR) in service domains, for instance health service or elderly care, is currently not possible and full autonomy and automatization of SR is still in far distance. Hence, methodologies are needed that promote human-robot collaboration and allow the robot to learn from its human mentor to become more autonomous and reliable. This demo illustrates an environment for such human-robot collaboration that provides an infrastructure for SR manipulation and teaching. The basic idea is that the robot becomes an apprentice that learns new skills by observing a trained human mentor that performs relevant tasks in the service domain by operating the robot. By observation and collaboration, the SR gradually becomes more autonomous and capable to carry out relevant healthcare tasks.

  @inproceedings{golchinfar_assisting_2019,
  address = {New York, NY, USA},
  series = {{MuC}'19},
  title = {Assisting {Service} {Robots} on their {Journey} to {Become} {Autonomous} {Agents}: {From} {Apprentice} to {Master} by {Participatory} {Observation}},
  isbn = {978-1-4503-7198-8},
  shorttitle = {Assisting {Service} {Robots} on their {Journey} to {Become} {Autonomous} {Agents}},
  url = {https://doi.org/10.1145/3340764.3345374},
  doi = {10.1145/3340764.3345374},
  abstract = {Natural and reliable application of service robots (SR) in service domains, for instance health service or elderly care, is currently not possible and full autonomy and automatization of SR is still in far distance. Hence, methodologies are needed that promote human-robot collaboration and allow the robot to learn from its human mentor to become more autonomous and reliable. This demo illustrates an environment for such human-robot collaboration that provides an infrastructure for SR manipulation and teaching. The basic idea is that the robot becomes an apprentice that learns new skills by observing a trained human mentor that performs relevant tasks in the service domain by operating the robot. By observation and collaboration, the SR gradually becomes more autonomous and capable to carry out relevant healthcare tasks.},
  urldate = {2021-04-16},
  booktitle = {Proceedings of {Mensch} und {Computer} 2019},
  publisher = {Association for Computing Machinery},
  author = {Golchinfar, David and Vaziri, Daryoush Daniel and Schreiber, Dirk and Stevens, Gunnar},
  month = sep,
  year = {2019},
  keywords = {healthcare, autonomous systems, design, evolutionary development, machine learning, Service robot},
  pages = {889--891},
  }

• ---

  Alizadeh, F., Jakobi, T., Boldt, J. & Stevens, G. (2019)GDPR-Reality Check on the Right to Access Data: Claiming and Investigating Personally Identifiable Data from Companies

  Proceedings of Mensch und Computer 2019. New York, NY, USA, Publisher: Association for Computing Machinery, Pages: 811–814 doi:10.1145/3340764.3344913
  [BibTeX] [Abstract] [Download PDF]

  Loyalty programs are early examples of companies commercially collecting and processing personal data. Today, more than ever before, personal information is being used by companies of all types for a wide variety of purposes. To limit this, the General Data Protection Regulation (GDPR) aims to provide consumers with tools to control data collection and processing. What this right concretely means, which types of tools companies have to provide to their customers and in which way, is currently uncertain because precedents from case law are missing. Contributing to closing this gap, we turn to the example of loyalty cards to supplement current implementations of the right to claim data with a user perspective. In our hands-on approach, we had 13 households request their personal data from their respective loyalty program. We investigate expectations of GDPR in general and the right to access in particular, observe the process of claiming and receiving, and discuss the provided data takeouts. One year after the GDPR has come into force, our findings highlight the consumer’s expectations and knowledge of the GDPR and in particular the right to access to inform design of more usable privacy enhancing technologies.

  @inproceedings{alizadeh_gdpr-reality_2019,
  address = {New York, NY, USA},
  series = {{MuC}'19},
  title = {{GDPR}-{Reality} {Check} on the {Right} to {Access} {Data}: {Claiming} and {Investigating} {Personally} {Identifiable} {Data} from {Companies}},
  isbn = {978-1-4503-7198-8},
  shorttitle = {{GDPR}-{Reality} {Check} on the {Right} to {Access} {Data}},
  url = {https://doi.org/10.1145/3340764.3344913},
  doi = {10.1145/3340764.3344913},
  abstract = {Loyalty programs are early examples of companies commercially collecting and processing personal data. Today, more than ever before, personal information is being used by companies of all types for a wide variety of purposes. To limit this, the General Data Protection Regulation (GDPR) aims to provide consumers with tools to control data collection and processing. What this right concretely means, which types of tools companies have to provide to their customers and in which way, is currently uncertain because precedents from case law are missing. Contributing to closing this gap, we turn to the example of loyalty cards to supplement current implementations of the right to claim data with a user perspective. In our hands-on approach, we had 13 households request their personal data from their respective loyalty program. We investigate expectations of GDPR in general and the right to access in particular, observe the process of claiming and receiving, and discuss the provided data takeouts. One year after the GDPR has come into force, our findings highlight the consumer's expectations and knowledge of the GDPR and in particular the right to access to inform design of more usable privacy enhancing technologies.},
  urldate = {2021-04-16},
  booktitle = {Proceedings of {Mensch} und {Computer} 2019},
  publisher = {Association for Computing Machinery},
  author = {Alizadeh, Fatemeh and Jakobi, Timo and Boldt, Jens and Stevens, Gunnar},
  month = sep,
  year = {2019},
  keywords = {Claim personal data, Data takeout, GDPR, Usable Privacy},
  pages = {811--814},
  }

• ---

  Vonholdt, S., Stevens, G. & Becker, D. (2019)Stakeholder-Analyse zum Einsatz IIoT-basierter Frischeinformationen in der Lebensmittelindustrie

  IN Wirtschaftsinformatik 2019 Proceedings
  [BibTeX] [Download PDF]

  @article{vonholdt_stakeholder-analyse_2019,
  title = {Stakeholder-{Analyse} zum {Einsatz} {IIoT}-basierter {Frischeinformationen} in der {Lebensmittelindustrie}},
  url = {https://aisel.aisnet.org/wi2019/track01/papers/6},
  journal = {Wirtschaftsinformatik 2019 Proceedings},
  author = {Vonholdt, Stephanie and Stevens, Gunnar and Becker, Darius},
  month = mar,
  year = {2019},
  }

• ---

  Vonholdt, S., Stevens, G., Kleih, K. & Boden, A. (2019)Digitale Rückverfolgbarkeit von Lebensmitteln: Eine verbraucherinformatische Studie

  IN Wirtschaftsinformatik 2019 Proceedings
  [BibTeX] [Download PDF]

  @article{vonholdt_digitale_2019,
  title = {Digitale {Rückverfolgbarkeit} von {Lebensmitteln}: {Eine} verbraucherinformatische {Studie}},
  shorttitle = {Digitale {Rückverfolgbarkeit} von {Lebensmitteln}},
  url = {https://aisel.aisnet.org/wi2019/track12/papers/11},
  journal = {Wirtschaftsinformatik 2019 Proceedings},
  author = {Vonholdt, Stephanie and Stevens, Gunnar and Kleih, Karoline and Boden, Alexander},
  month = feb,
  year = {2019},
  }

• ---

  Stevens, G., Boden, A., Winterberg, L., Gómez, J. & Bala, C. (2019)Digitaler Konsum: Herausforderungen und Chancen der Verbraucherinformatik

  IN Wirtschaftsinformatik 2019 Proceedings
  [BibTeX] [Download PDF]

  @article{stevens_digitaler_2019,
  title = {Digitaler {Konsum}: {Herausforderungen} und {Chancen} der {Verbraucherinformatik}},
  shorttitle = {Digitaler {Konsum}},
  url = {https://aisel.aisnet.org/wi2019/workshops/papers/6},
  journal = {Wirtschaftsinformatik 2019 Proceedings},
  author = {Stevens, Gunnar and Boden, Alexander and Winterberg, Lars and Gómez, Jorge and Bala, Christian},
  month = feb,
  year = {2019},
  }

• ---

  Stevens, G., Meurer, J., Pakusch, C. & Bossauer, P. (2019)Investigating Car Futures from Different Angles

  doi:10.18420/muc2019-ws-453
  [BibTeX] [Abstract] [Download PDF]

  The design of self-driving cars is one of the most exciting and ambitious challenges of our days and every day, new research work is published. In order to give an orientation, this article will present an overview of various methods used to study the human side of autonomous driving. Simplifying roughly, you can distinguish between design science-oriented methods (such as Research through Design, Wizard of Oz or driving simulator ) and behavioral science methods (such as survey, interview, and observation). We show how these methods are adopted in the context of autonomous driving research and dis-cuss their strengths and weaknesses. Due to the complexity of the topic, we will show that mixed method approaches will be suitable to explore the impact of autonomous driving on different levels: the individual, the social interaction and society.

  @article{stevens_investigating_2019,
  title = {Investigating {Car} {Futures} from {Different} {Angles}},
  url = {http://dl.gi.de/handle/20.500.12116/25194},
  doi = {10.18420/muc2019-ws-453},
  abstract = {The design of self-driving cars is one of the most exciting and ambitious challenges of our days and every day, new research work is published. In order to give an orientation, this article will present an overview of various methods used to study the human side of autonomous driving. Simplifying roughly, you can distinguish between design science-oriented methods (such as Research through Design, Wizard of Oz or driving simulator ) and behavioral science methods (such as survey, interview, and observation). We show how these methods are adopted in the context of autonomous driving research and dis-cuss their strengths and weaknesses. Due to the complexity of the topic, we will show that mixed method approaches will be suitable to explore the impact of autonomous driving on different levels: the individual, the social interaction and society.},
  language = {en},
  urldate = {2021-04-16},
  author = {Stevens, Gunnar and Meurer, Johanna and Pakusch, Christina and Bossauer, Paul},
  year = {2019},
  note = {Accepted: 2019-09-05T01:05:23Z
  Publisher: Gesellschaft für Informatik e.V.},
  }

• ---

  Lawo, D., Litz, K., Gromov, C., Schwärzer, H. & Stevens, G. (2019)Vegan werden: Nutzung digitaler Medien im Übergang zu einer nachhaltigen Ernährung

  doi:10.1145/3340764.3344447
  [BibTeX] [Abstract] [Download PDF]

  Bisherige Versuche der HCI-Community die Lebensmittelverschwendung oder den CO2-Fußabdruck zu reduzieren, basierten meist auf Persuasive Design Ansätzen. Diese werden jedoch kritisiert, die Alltagswelten und Konsumpraktiken für eine Langzeitwirkung nur unzureichend zu berücksichtigen. Das Problem aufgreifend, untersucht dieser Beitrag die Rolle (digitaler) Medien im Übergang zu einer veganen Ernährungspraktik. Hierfür wurden semi-strukturierte Interviews mit 9 VeganerInnen geführt und vor dem Hintergrund der Praxistheorie analysiert. Die Ergebnisse deuten dabei auf eine intensive Nutzung (digitaler) Medien, insbesondere in der frühen Phase der Änderung der Konsumpraktik. Statt Gamification oder Persuasive Design, zeigt sich Mediennutzung in Form von Irritation, Informationsbereitstellung zur Ausbildung eines vegan-spezifischen Konsumwissens sowie als Vermittler zwischen Gleichgesinnten.

  @article{lawo_vegan_2019,
  title = {Vegan werden: {Nutzung} digitaler {Medien} im Übergang zu einer nachhaltigen {Ernährung}},
  shorttitle = {Vegan werden},
  url = {http://dl.gi.de/handle/20.500.12116/24623},
  doi = {10.1145/3340764.3344447},
  abstract = {Bisherige Versuche der HCI-Community die Lebensmittelverschwendung oder den CO2-Fußabdruck zu reduzieren, basierten meist auf Persuasive Design Ansätzen. Diese werden jedoch kritisiert, die Alltagswelten und Konsumpraktiken für eine Langzeitwirkung nur unzureichend zu berücksichtigen. Das Problem aufgreifend, untersucht dieser Beitrag die Rolle (digitaler) Medien im Übergang zu einer veganen Ernährungspraktik. Hierfür wurden semi-strukturierte Interviews mit 9 VeganerInnen geführt und vor dem Hintergrund der Praxistheorie analysiert. Die Ergebnisse deuten dabei auf eine intensive Nutzung (digitaler) Medien, insbesondere in der frühen Phase der Änderung der Konsumpraktik. Statt Gamification oder Persuasive Design, zeigt sich Mediennutzung in Form von Irritation, Informationsbereitstellung zur Ausbildung eines vegan-spezifischen Konsumwissens sowie als Vermittler zwischen Gleichgesinnten.},
  language = {de},
  urldate = {2021-04-16},
  author = {Lawo, Dennis and Litz, Katharina and Gromov, Christina and Schwärzer, Hannah and Stevens, Gunnar},
  year = {2019},
  note = {Accepted: 2019-08-22T04:36:38Z
  Publisher: ACM},
  }

• ---

  Jakobi, T., Seufert, A., Stevens, G. & Becker, M. (2019)Webtracking im neuen Datenschutzrecht – Gestaltungspotentiale an der Schnittstelle von Rechtswissenschaften und HCI

  doi:10.1145/3340764.3340790
  [BibTeX] [Abstract] [Download PDF]

  Die DSGVO regelt derzeit den Umgang mit personenbezogenen Daten grundlegend neu und eröffnet dadurch neue Spielräume. Gleichzeitig erzeugt sie große Unsicherheit unter den Betroffenen. Ein Beispiel hierfür sind Webtracker, die Gestaltern auf Basis zum Teil umfangreicher (personenbezogener) Datenerhebung helfen, die Utility und Usability ihrer Webseiten zu verbessern, oder Betreiber deren Finanzierung ermöglichen. Vor diesem Hintergrund zeigen wir in diesem Beitrag zunächst die praktische Relevanz von Webtracking durch die Sammlung der Webtracker der jeweils 100 populärsten Seiten der 28 EU-Mitglieder. Darauf aufbauend zeigen wir, welche Daten diese Tracker sammeln und analysieren Rechtsgrundlagen. Schließlich diskutieren wir mögliche gestalterische und architektonische Konsequenzen zur Erfüllung der rechtlich skizzierten Anforderungen unter Berücksichtigung der Benutzerperspektive.

  @article{jakobi_webtracking_2019,
  title = {Webtracking im neuen {Datenschutzrecht} - {Gestaltungspotentiale} an der {Schnittstelle} von {Rechtswissenschaften} und {HCI}},
  url = {http://dl.gi.de/handle/20.500.12116/24598},
  doi = {10.1145/3340764.3340790},
  abstract = {Die DSGVO regelt derzeit den Umgang mit personenbezogenen Daten grundlegend neu und eröffnet dadurch neue Spielräume. Gleichzeitig erzeugt sie große Unsicherheit unter den Betroffenen. Ein Beispiel hierfür sind Webtracker, die Gestaltern auf Basis zum Teil umfangreicher (personenbezogener) Datenerhebung helfen, die Utility und Usability ihrer Webseiten zu verbessern, oder Betreiber deren Finanzierung ermöglichen. Vor diesem Hintergrund zeigen wir in diesem Beitrag zunächst die praktische Relevanz von Webtracking durch die Sammlung der Webtracker der jeweils 100 populärsten Seiten der 28 EU-Mitglieder. Darauf aufbauend zeigen wir, welche Daten diese Tracker sammeln und analysieren Rechtsgrundlagen. Schließlich diskutieren wir mögliche gestalterische und architektonische Konsequenzen zur Erfüllung der rechtlich skizzierten Anforderungen unter Berücksichtigung der Benutzerperspektive.},
  language = {de},
  urldate = {2021-04-16},
  author = {Jakobi, Timo and Seufert, Anna-Magdalena and Stevens, Gunnar and Becker, Max},
  year = {2019},
  note = {Accepted: 2019-08-22T04:36:34Z
  Publisher: ACM},
  }

• ---

  Alizadeh, F., Jakobi, T., Boldt, J. & Stevens, G. (2019)GDPR-Realitycheck on the right to access data

  doi:10.1145/3340764.3344913
  [BibTeX] [Abstract] [Download PDF]

  Loyalty programs are early examples of companies commercially collecting and processing personal data. Today, more than ever before, personal information is being used by companies of all types for a wide variety of purposes. To limit this, the General Data Protection Regulation (GDPR) aims to provide consumers with tools to control data collection and processing. What this right concretely means, which types of tools companies have to provide to their customers and in which way, is currently uncertain because precedents from case law are missing. Contributing to closing this gap, we turn to the example of loyalty cards to supplement current implementations of the right to claim data with a user perspective. In our hands-on approach, we had 13 households request their personal data from their respective loyalty program. We investigate expectations of GDPR in general and the right to access in particular, observe the process of claiming and receiving, and discuss the provided data takeouts. One year after the GDPR has come into force, our findings highlight the consumer’s expectations and knowledge of the GDPR and in particular the right to access to inform design of more usable privacy enhancing technologies.

  @article{alizadeh_gdpr-realitycheck_2019,
  title = {{GDPR}-{Realitycheck} on the right to access data},
  url = {http://dl.gi.de/handle/20.500.12116/24564},
  doi = {10.1145/3340764.3344913},
  abstract = {Loyalty programs are early examples of companies
  commercially collecting and processing personal data. Today,
  more than ever before, personal information is being used by
  companies of all types for a wide variety of purposes. To limit
  this, the General Data Protection Regulation (GDPR) aims to
  provide consumers with tools to control data collection and
  processing. What this right concretely means, which types of
  tools companies have to provide to their customers and in
  which way, is currently uncertain because precedents from
  case law are missing. Contributing to closing this gap, we turn
  to the example of loyalty cards to supplement current
  implementations of the right to claim data with a user
  perspective. In our hands-on approach, we had 13 households
  request their personal data from their respective loyalty
  program. We investigate expectations of GDPR in general and
  the right to access in particular, observe the process of claiming
  and receiving, and discuss the provided data takeouts. One year
  after the GDPR has come into force, our findings highlight the
  consumer's expectations and knowledge of the GDPR and in
  particular the right to access to inform design of more usable
  privacy enhancing technologies.},
  language = {en},
  urldate = {2021-04-16},
  author = {Alizadeh, Fatemeh and Jakobi, Timo and Boldt, Jens and Stevens, Gunnar},
  year = {2019},
  note = {Accepted: 2019-08-22T04:36:27Z
  Publisher: ACM},
  }

• ---

  Jakobi, T., Patil, S., Randall, D., Stevens, G. & Wulf, V. (2019)It Is About What They Could Do with the Data: A User Perspective on Privacy in Smart Metering

  IN ACM Trans. Comput.-Hum. Interact., Vol. 26, Pages: 2:1–2:44 doi:10.1145/3281444
  [BibTeX] [Download PDF]

  @article{jakobi_it_2019,
  title = {It {Is} {About} {What} {They} {Could} {Do} with the {Data}: {A} {User} {Perspective} on {Privacy} in {Smart} {Metering}},
  volume = {26},
  issn = {1073-0516},
  url = {http://doi.acm.org/10.1145/3281444},
  doi = {10.1145/3281444},
  number = {1},
  journal = {ACM Trans. Comput.-Hum. Interact.},
  author = {Jakobi, Timo and Patil, Sameer and Randall, Dave and Stevens, Gunnar and Wulf, Volker},
  year = {2019},
  keywords = {design probe, privacy preferences, privacy settings, Smart metering, smart meters, usable privacy},
  pages = {2:1--2:44},
  annote = {Place: New York, NY, USA Publisher: ACM},
  }

• ---

  Jakobi, T., Stevens, G., Seufert, A. & Becker, M. (2019)Webtracking Under the New Data Protection Law: Design Potentials at the Intersection of Jurisprudence and HCI

  Proceedings of Mensch Und Computer 2019. New York, NY, USA, Publisher: ACM, Pages: 309–319 doi:10.1145/3340764.3340790
  [BibTeX] [Download PDF]

  @inproceedings{jakobi_webtracking_2019-1,
  address = {New York, NY, USA},
  series = {{MuC}'19},
  title = {Webtracking {Under} the {New} {Data} {Protection} {Law}: {Design} {Potentials} at the {Intersection} of {Jurisprudence} and {HCI}},
  isbn = {978-1-4503-7198-8},
  url = {http://doi.acm.org/10.1145/3340764.3340790},
  doi = {10.1145/3340764.3340790},
  booktitle = {Proceedings of {Mensch} {Und} {Computer} 2019},
  publisher = {ACM},
  author = {Jakobi, Timo and Stevens, Gunnar and Seufert, Anna-Magdalena and Becker, Max},
  year = {2019},
  keywords = {HCI, DSGVO, Privatsphäre, Web-Tracking},
  pages = {309--319},
  }

• ---

  Stevens, G., Bossauer, P., Vonholdt, S. & Pakusch, C. (2019)Using Time and Space Efficiently in Driverless Cars: Findings of a Co-Design Study

  Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems., Pages: 1–14
  [BibTeX]

  @inproceedings{stevens_using_2019,
  title = {Using {Time} and {Space} {Efficiently} in {Driverless} {Cars}: {Findings} of a {Co}-{Design} {Study}},
  booktitle = {Proceedings of the 2019 {CHI} {Conference} on {Human} {Factors} in {Computing} {Systems}},
  author = {Stevens, Gunnar and Bossauer, Paul and Vonholdt, Stephanie and Pakusch, Christina},
  year = {2019},
  keywords = {a-paper},
  pages = {1--14},
  }

• ---

  Castelli, N., Stevens, G. & Jakobi, T. (2019)Information Visualization at Home: A literature survey of consumption feedback design

  [BibTeX]

  @article{castelli_information_2019,
  title = {Information {Visualization} at {Home}: {A} literature survey of consumption feedback design},
  author = {Castelli, Nico and Stevens, Gunnar and Jakobi, Timo},
  year = {2019},
  }

2018

• ---

  Berkholz, J. & Stevens, G. (2018)Bourdieu Reloaded: On the Social Construction of Digital Taste

  IN Woodstock ’18: ACM Symposium on Neural Gaze Detection, Pages: 5
  [BibTeX] [Abstract] [Download PDF]

  Despite the growing research of taste interfaces, the focus of the HCI community seems to be on the manipulation and stimulation of taste. Our literature search in the ACM Library on a total of 262 titles using the keywords food and taste shows that taste is not considered as a socio-cultural approach, but more as a sensory phenomenon. In this work-in-progress paper, we address and discuss this gap in taste research within the sphere of Smell, and Temperature Interfaces

  @article{berkholz_bourdieu_2018,
  title = {Bourdieu {Reloaded}: {On} the {Social} {Construction} of {Digital} {Taste}},
  url = {https://stt21.plopes.org/wp-content/uploads/2021/05/STT2021_Bourdieu-Reloaded.pdf},
  abstract = {Despite the growing research of taste interfaces, the focus of the HCI community seems to be on the manipulation and stimulation
  of taste. Our literature search in the ACM Library on a total of 262 titles using the keywords food and taste shows that taste is not
  considered as a socio-cultural approach, but more as a sensory phenomenon. In this work-in-progress paper, we address and discuss
  this gap in taste research within the sphere of Smell, and Temperature Interfaces},
  language = {en},
  journal = {Woodstock ’18: ACM Symposium on Neural Gaze Detection},
  author = {Berkholz, Jenny and Stevens, Gunnar},
  month = jun,
  year = {2018},
  pages = {5},
  }

• ---

  Wulf, V., Pipek, V., Randall, D., Rohde, M., Schmidt, K. & Stevens, G. (2018)Socio-Informatics – A Practice-based Perspective on the Design and Use of IT Artefacts

  Wulf, V., Pipek, V., Randall, D., Rohde, M., Schmidt, K. & Stevens, G. (Eds.), Publisher: Oxford University Press
  [BibTeX]

  @book{wulf_socio-informatics_2018,
  title = {Socio-{Informatics} - {A} {Practice}-based {Perspective} on the {Design} and {Use} of {IT} {Artefacts}},
  isbn = {978-0-19-873324-9},
  publisher = {Oxford University Press},
  author = {Wulf, Volker and Pipek, Volkmar and Randall, David and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar},
  editor = {Wulf, Volker and Pipek, Volkmar and Randall, David and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar},
  year = {2018},
  keywords = {CSCW, PRAXLABS, MdK},
  }

• ---

  Wulf, V., Stevens, G., Rohde, M. & Korn, M. (2018)Grounded Design: A Research Paradigm in Practice-based Computing

  IN Wulf, V., Pipek, V., Randall, D., Rohde, M., Schmidt, K. & Stevens, G. (Eds.), Socio-Informatics – A Practice-based Perspective on the Design and Use of IT Artefacts
  [BibTeX] [Download PDF]

  @incollection{wulf_grounded_2018,
  title = {Grounded {Design}: {A} {Research} {Paradigm} in {Practice}-based {Computing}},
  isbn = {978-0-19-873324-9},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2018/04/Chapter-1-Wulf-et-al-Grounded-Design-edited-DR2.pdf},
  booktitle = {Socio-{Informatics} - {A} {Practice}-based {Perspective} on the {Design} and {Use} of {IT} {Artefacts}},
  publisher = {Oxford University Press},
  author = {Wulf, Volker and Stevens, Gunnar and Rohde, Markus and Korn, Matthias},
  editor = {Wulf, Volker and Pipek, Volkmar and Randall, David and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar},
  year = {2018},
  keywords = {CSCW, PRAXLABS, MdK},
  pages = {23--46},
  }

• ---

  Pipek, V. & Stevens, G. (2018)Making Use: Understanding, Studying, and Supporting Appropriation

  IN Wulf, V., Pipek, V., Randall, D., Rohde, M., Schmidt, K. & Stevens, G. (Eds.), Socio-Informatics – A Practice-based Perspective on the Design and Use of IT Artefacts
  [BibTeX] [Download PDF]

  @incollection{pipek_making_2018,
  title = {Making {Use}: {Understanding}, {Studying}, and {Supporting} {Appropriation}},
  isbn = {978-0-19-873324-9},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2018/04/Chapter-4-Making-Use1.pdf},
  booktitle = {Socio-{Informatics} - {A} {Practice}-based {Perspective} on the {Design} and {Use} of {IT} {Artefacts}},
  publisher = {Oxford University Press},
  author = {Pipek, Volkmar and Stevens, Gunnar},
  editor = {Wulf, Volker and Pipek, Volkmar and Randall, David and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar},
  year = {2018},
  keywords = {CSCW, PRAXLABS, MdK},
  pages = {139--176},
  }

• ---

  Randall, D., Dachtera, J., Dyrks, T., Nett, B., Pipek, V., Ramirez, L., Stevens, G., Wagner, I. & Wulf, V. (2018)Research into Design Research Practices: Supporting an Agenda towards Self-Reflectivity and Transferability

  IN Wulf, V., Pipek, V., Randall, D., Rohde, M., Schmidt, K. & Stevens, G. (Eds.), Socio-Informatics – A Practice-based Perspective on the Design and Use of IT Artefacts
  [BibTeX] [Download PDF]

  @incollection{randall_research_2018,
  title = {Research into {Design} {Research} {Practices}: {Supporting} an {Agenda} towards {Self}-{Reflectivity} and {Transferability}},
  isbn = {978-0-19-873324-9},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2018/04/Section-4-Meta-Analysis.pdf},
  booktitle = {Socio-{Informatics} - {A} {Practice}-based {Perspective} on the {Design} and {Use} of {IT} {Artefacts}},
  publisher = {Oxford University Press},
  author = {Randall, Dave and Dachtera, Juri and Dyrks, Tobias and Nett, Bernhard and Pipek, Volkmar and Ramirez, Leonardo and Stevens, Gunnar and Wagner, Ina and Wulf, Volker},
  editor = {Wulf, Volker and Pipek, Volkmar and Randall, David and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar},
  year = {2018},
  keywords = {CSCW, PRAXLABS, MdK},
  pages = {491--540},
  }

• ---

  Jakobi, T., Stevens, G., Castelli, N., Ogonowski, C., Schaub, F., Vindice, N., Randall, D., Tolmie, P. & Wulf, V. (2018)Evolving Needs in IoT Control and Accountability: A Longitudinal Study on Smart Home Intelligibility

  IN Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Vol. 2, Pages: 28 doi:https://doi.org/10.1145/3287049
  [BibTeX]

  @article{jakobi_evolving_2018,
  title = {Evolving {Needs} in {IoT} {Control} and {Accountability}: {A} {Longitudinal} {Study} on {Smart} {Home} {Intelligibility}},
  volume = {2},
  doi = {https://doi.org/10.1145/3287049},
  number = {4},
  journal = {Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies},
  author = {Jakobi, Timo and Stevens, Gunnar and Castelli, Nico and Ogonowski, Corinna and Schaub, Florian and Vindice, Nils and Randall, Dave and Tolmie, Peter and Wulf, Volker},
  year = {2018},
  pages = {28},
  }

• ---

  Jakobi, T., Stevens, G. & Seufert, A. (2018)Privacy-By-Design für das Connected Car: Architekturen aus Verbrauchersicht

  IN Datenschutz und Datensicherheit-DuD, Vol. 42, Pages: 704–707
  [BibTeX]

  @article{jakobi_privacy-by-design_2018,
  title = {Privacy-{By}-{Design} für das {Connected} {Car}: {Architekturen} aus {Verbrauchersicht}},
  volume = {42},
  issn = {1614-0702},
  number = {11},
  journal = {Datenschutz und Datensicherheit-DuD},
  author = {Jakobi, Timo and Stevens, Gunnar and Seufert, Anna-Magdalena},
  year = {2018},
  pages = {704--707},
  }

• ---

  Stevens, G., Bossauer, P., Jakobi, T. & Pakusch, C. (2018)Mehrseitiges Vertrauen bei IoT-basierten Reputationssystemen

  IN Mensch und Computer 2018-Workshopband
  [BibTeX]

  @article{stevens_mehrseitiges_2018,
  title = {Mehrseitiges {Vertrauen} bei {IoT}-basierten {Reputationssystemen}},
  journal = {Mensch und Computer 2018-Workshopband},
  author = {Stevens, Gunnar and Bossauer, Paul and Jakobi, Timo and Pakusch, Christina},
  year = {2018},
  }

• ---

  Pakusch, C., Neifer, T., Bossauer, P. & Stevens, G. (2018)P2P-Carsharing. Motive, Ängste und Barrieren bei der Teilnahme-eine explorative Studie

  IN Internationales Verkehrswesen, Vol. 70
  [BibTeX]

  @article{pakusch_p2p-carsharing_2018,
  title = {{P2P}-{Carsharing}. {Motive}, Ängste und {Barrieren} bei der {Teilnahme}-eine explorative {Studie}},
  volume = {70},
  number = {4},
  journal = {Internationales Verkehrswesen},
  author = {Pakusch, Christina and Neifer, Thomas and Bossauer, Paul and Stevens, Gunnar},
  year = {2018},
  }

• ---

  Pakusch, C., Weber, T., Stevens, G. & Bossauer, P. (2018)Akzeptanz autonomer Verkehrsmittel: Eine Analyse relativer Mehrwerte selbstfahrender Autos im Vergleich zu heutigen Verkehrsmitteln

  IN Proceedings of the Tagungsband Wirtschaftsinformatik, Pages: 938–949
  [BibTeX]

  @article{pakusch_akzeptanz_2018,
  title = {Akzeptanz autonomer {Verkehrsmittel}: {Eine} {Analyse} relativer {Mehrwerte} selbstfahrender {Autos} im {Vergleich} zu heutigen {Verkehrsmitteln}},
  journal = {Proceedings of the Tagungsband Wirtschaftsinformatik},
  author = {Pakusch, Christina and Weber, Tobias and Stevens, Gunnar and Bossauer, Paul},
  year = {2018},
  pages = {938--949},
  }

• ---

  Pakusch, C., Stevens, G., Bossauer, P. & Weber, T. (2018)The Users‘ Perspective on Autonomous Driving

  [BibTeX]

  @article{pakusch_users_2018,
  title = {The {Users}' {Perspective} on {Autonomous} {Driving}},
  author = {Pakusch, Christina and Stevens, Gunnar and Bossauer, Paul and Weber, Tobias},
  year = {2018},
  }

• ---

  Pakusch, C., Stevens, G. & Bossauer, P. (2018)Shared Autonomous Vehicles: Potentials for a Sustainable Mobility and Risks of Unintended Effects.

  ICT4S., Pages: 258–269
  [BibTeX]

  @inproceedings{pakusch_shared_2018,
  title = {Shared {Autonomous} {Vehicles}: {Potentials} for a {Sustainable} {Mobility} and {Risks} of {Unintended} {Effects}.},
  booktitle = {{ICT4S}},
  author = {Pakusch, Christina and Stevens, Gunnar and Bossauer, Paul},
  year = {2018},
  pages = {258--269},
  }

2017

• ---

  Rohde, M., Brödner, P., Stevens, G., Betz, M. & Wulf, V. (2017)Grounded Design – a praxeological IS research perspective

  IN Journal of Information Technology, Vol. 32, Pages: 163–179 doi:10.1057/jit.2016.5
  [BibTeX] [Abstract] [Download PDF]

  In this paper, we propose Grounded Design – a particular design research (DR) approach rooted in a practice-theoretical tradition. It assesses the quality of information technology (IT) design through evaluation of emerging changes in social practices, which result from the appropriation and use of IT artifacts. The paper starts with a systematic analysis of the reasons for persistent limitations of traditional information systems DR, specifically in coping with problems of contingency and self-referentiality. Following this critique, the principles of Grounded Design are presented. Grounded Design is applied in case studies where we reconstruct the social practices observed before and during the design and appropriation of innovative IT artifacts. We call these context-specific research endeavors ‘design case studies.’ In conducting these case studies, Grounded Design builds upon well-established research methods such as ethnographical field studies, participatory design and action research. To support the transferability of its situated findings, Grounded Design suggests documenting increasing numbers of design case studies to create an extended, comparative knowledge base. Comparing cases allows for the emergence of bottom-up concepts dealing with the design and appropriation of innovative IT artifacts in social practice.

  @article{rohde_grounded_2017-1,
  title = {Grounded {Design} - a praxeological {IS} research perspective},
  volume = {32},
  issn = {0268-3962},
  url = {https://doi.org/10.1057/jit.2016.5},
  doi = {10.1057/jit.2016.5},
  abstract = {In this paper, we propose Grounded Design - a particular design research (DR) approach rooted in a practice-theoretical tradition. It assesses the quality of information technology (IT) design through evaluation of emerging changes in social practices, which result from the appropriation and use of IT artifacts. The paper starts with a systematic analysis of the reasons for persistent limitations of traditional information systems DR, specifically in coping with problems of contingency and self-referentiality. Following this critique, the principles of Grounded Design are presented. Grounded Design is applied in case studies where we reconstruct the social practices observed before and during the design and appropriation of innovative IT artifacts. We call these context-specific research endeavors ‘design case studies.’ In conducting these case studies, Grounded Design builds upon well-established research methods such as ethnographical field studies, participatory design and action research. To support the transferability of its situated findings, Grounded Design suggests documenting increasing numbers of design case studies to create an extended, comparative knowledge base. Comparing cases allows for the emergence of bottom-up concepts dealing with the design and appropriation of innovative IT artifacts in social practice.},
  language = {en},
  number = {2},
  urldate = {2021-04-16},
  journal = {Journal of Information Technology},
  author = {Rohde, Markus and Brödner, Peter and Stevens, Gunnar and Betz, Matthias and Wulf, Volker},
  month = jun,
  year = {2017},
  note = {Publisher: SAGE Publications Ltd},
  keywords = {design case study, grounded theory, IS design research, praxeology, socio-technical systems},
  pages = {163--179},
  }

• ---

  Stevens, G. & Bossauer, P. (2017)Dealing with Personal Data in the Age of Big Data Economies

  IN Zeitschrift fuer Geistiges Eigentum / Intellectual Property Journal, Vol. 9, Pages: 266–278 doi:https://doi.org/10.1628/186723717X15069451170856
  [BibTeX] [Abstract]

  The technological development of the digital computer and new options to collect, store and transfer mass data have changed the world in the last 40 years. Moreover, due to the ongoing progress of computer power, the establishment of the Internet as critical infrastructure and the options of ubiquitous sensor systems will have a dramatic impact on economies and societies in the future. We give a brief overview about the technological basics especially with regard to the exponential growth of big data and current turn towards sensor-based data collection. From this stance, we reconsider the various dimensions of personal data and and market mechanisms that have an impact of data usage and protection.

  @article{stevens_dealing_2017,
  title = {Dealing with {Personal} {Data} in the {Age} of {Big} {Data} {Economies}},
  volume = {9},
  doi = {https://doi.org/10.1628/186723717X15069451170856},
  abstract = {The technological development of the digital computer and new options to collect, store and transfer mass data have changed the world in the last 40 years. Moreover, due to the ongoing progress of computer power, the establishment of the Internet as critical infrastructure and the options of ubiquitous sensor systems will have a dramatic impact on economies and societies in the future. We give a brief overview about the technological basics especially with regard to the exponential growth of big data and current turn towards sensor-based data collection. From this stance, we reconsider the various dimensions of personal data and and market mechanisms that have an impact of data usage and protection.},
  number = {3},
  journal = {Zeitschrift fuer Geistiges Eigentum / Intellectual Property Journal},
  author = {Stevens, Gunnar and Bossauer, Paul},
  year = {2017},
  pages = {266--278},
  }

• ---

  Jakobi, T., Ogonowski, C., Castelli, N., Stevens, G. & Wulf, V. (2017)The Catch(es) with Smart Home – Experiences of a Living Lab Field Study

  Proceedings of the Conference on Human Factors in Computing Systems (CHI).
  [BibTeX]

  @inproceedings{jakobi_catches_2017,
  title = {The {Catch}(es) with {Smart} {Home} – {Experiences} of a {Living} {Lab} {Field} {Study}},
  booktitle = {Proceedings of the {Conference} on {Human} {Factors} in {Computing} {Systems} ({CHI})},
  author = {Jakobi, Timo and Ogonowski, Corinna and Castelli, Nico and Stevens, Gunnar and Wulf, Volker},
  year = {2017},
  keywords = {A-Paper, CSCW, PRAXLABS, SMARTLIVE, UUIS},
  }

• ---

  Rohde, M., Brödner, P., Stevens, G., Betz, M. & Wulf, V. (2017)Grounded Design – a praxeological \IS\ research perspective

  IN JIT, Vol. 32, Pages: 163–179 doi:10.1057/jit.2016.5
  [BibTeX] [Download PDF]

  @article{rohde_grounded_2017,
  title = {Grounded {Design} - a praxeological \{{IS}\} research perspective},
  volume = {32},
  url = {https://doi.org/10.1057/jit.2016.5},
  doi = {10.1057/jit.2016.5},
  number = {2},
  journal = {JIT},
  author = {Rohde, Markus and Brödner, Peter and Stevens, Gunnar and Betz, Matthias and Wulf, Volker},
  year = {2017},
  pages = {163--179},
  }

• ---

  Stevens, G., Bossauer, P., Neifer, T. & Hanschke, S. (2017)Using Shopping Data to Design Sustainable Consumer Apps

  IN Proceedings of SustainIT 2017
  [BibTeX]

  @article{stevens_using_2017,
  title = {Using {Shopping} {Data} to {Design} {Sustainable} {Consumer} {Apps}},
  journal = {Proceedings of SustainIT 2017},
  author = {Stevens, Gunnar and Bossauer, Paul and Neifer, T. and Hanschke, S.},
  year = {2017},
  }

• ---

  Woedl, S., Pakusch, C., Bossauer, P. & Stevens, G. (2017)Auswirkung vollautomatisierter PKWs auf die Verkehrsmittelwahl

  IN Internationales Verkehrswesen, Pages: 68–72
  [BibTeX]

  @article{woedl_auswirkung_2017,
  title = {Auswirkung vollautomatisierter {PKWs} auf die {Verkehrsmittelwahl}},
  number = {3},
  journal = {Internationales Verkehrswesen},
  author = {Woedl, Sebastian and Pakusch, Christina and Bossauer, Paul and Stevens, Gunnar},
  year = {2017},
  keywords = {PRAXLABS},
  pages = {68--72},
  }

• ---

  Wulf, V., Pipek, V., Rohde, M., Stevens, G. & Randall, D. (2017)Socio Informatics – A practice‐based perspective Proposed Table of Contents

  [BibTeX] [Abstract] [Download PDF]

  The book will propose a practice‐based approach to socio‐ informatics, a research paradigm in applied CS which suggests building a corpus of contextually situated design case studies. This practice‐based approach builds substantially on work in CSCW, but notably on the socio‐ technical approaches sometimes associated with European CSCW. Our position is that a major lacuna in CSCW thus far has been the absence of adequate means to deal with the problem of transferability of insight across different case studies. That is, although a growing corpus of studies has demonstrated the importance of socio‐ technical insights, conceptual and theoretical competition has restricted their value. We aim to begin the process of rectifying this situation by proposing a systematic approach to the problem of interdisciplinarity. The last twenty five years have seen a small revolution in our approach to the understanding of new technology. It has become a founding assumption of CSCW that in the future, if not already, most computer applications will be socially embedded in the sense that they will become infrastructures for the development of the social practices which they are designed to support. This will be true in an ever increasing variety of domains and living conditions. Assuming that IT artifacts have to be understood in this socio‐technical way, traditional design criteria in CS (performance, correctness, stability or usability) need to be supplemented by methods and perspectives which illuminate the way in which technology and practice are mutually elaborating. This has involved, inter alia, new methodologies for the investigation of patterns of use and the gathering of requirements (including ethnographic work; ‚living labs‘ and so on); new methodologies for design (methodologies which place flexibility and user involvement at the centre) and new approaches to the product lifecycle (which recognize the complex and long term nature of appropriation of technology by users and hence implicate a different understanding of evaluation). Nevertheless, these developments remain piecemeal. In our view, the field has to a degree been restricted in its development by a competition between theoretical perspectives largely founded in their disciplinary origins in sociology and psychology. The growth of a systematic and rigorous approach to practice‐ based, or human‐centred, computing requires new foundations. These foundations, we suggest, will be predicated on the resolution of a number of issues: 1. A clearer understanding of what we mean by practice and how it is socially embedded. 2. A more nuanced view of the different ways in which processes of empirical investigation and of construction may be linked to each other. 3. A better understanding of the way in which new design methodologies link to investigative approaches and of effective mechanisms for supporting stakeholder involvement. 4. A systematic approach to the use of technology which extends from early investigation into domains of practice through to investigation of the ways in which practices become embedded in social and organizational life. Our proposal, then, is for an edited book structured to reflect these issues and concerns. More specifically, this will be done by linking key methodological chapters to empirical chapters which illustrate these themes. To elaborate on this, the book will be divided into four parts. The first one elaborates on the theoretical foundations of design‐related work, specifically on the concepts of practice, design and appropriation. In the second part, different methodological approaches and how best to utilize them in design‐related enquiry will be presented and discussed. Again, the focus will be on the tailoring of investigative strategies for specific kinds of design problem (business ethnography, grounded design, integrated organization and technology development, mobility, cross‐ cultural work, inter‐organizational collaboration). The third part presents a sample of design case studies originated in different social and organizational contexts which can be understood as exemplars of more general problems. That is, each will orient in turn to the problem of comparability and ways in which cross‐cutting issues can be identified. Design case studies are understood as investigations into the practices before and after introducing the IT artifacts and the design process in support of these practices. They develop on a three phase research model, linking: empirical prestudy, the IT design and the investigation into its appropriation. We argue that design case studies or fractals of them should become a key element in Socio Informatics. In this sense, ‚Socio Informatics‘ is epistemologically distinct from traditional approaches to CS in the sense that it creates highly context specific results and its findings are only valid in the context of their emergence. CS and even the traditional approaches to Human Centered Computing assume a context‐independent validity for these formal, algorithmic and design‐oriented findings. If research‐ findings are context‐specific we need to find new ways to reason about their transferability.

  @article{wulf_socio_2017,
  title = {Socio {Informatics} – {A} practice‐based perspective {Proposed} {Table} of {Contents}},
  url = {https://www.uni-siegen.de/infme/start_ifm/downloads/tagungen/eusset/book_proposal_socio.pdf},
  abstract = {The book will propose a practice‐based approach to socio‐ informatics, a research paradigm in applied CS which suggests building a corpus of contextually situated design case studies. This practice‐based approach builds substantially on work in CSCW, but notably on the socio‐ technical approaches sometimes associated with European CSCW. Our position is that a major lacuna in CSCW thus far has been the absence of adequate means to deal with the problem of transferability of insight across different case studies. That is, although a growing corpus of studies has demonstrated the importance of socio‐ technical insights, conceptual and theoretical competition has restricted their value. We aim to begin the process of rectifying this situation by proposing a systematic approach to the problem of interdisciplinarity. The last twenty five years have seen a small revolution in our approach to the understanding of new technology. It has become a founding assumption of CSCW that in the future, if not already, most computer applications will be socially embedded in the sense that they will become infrastructures for the development of the social practices which they are designed to support. This will be true in an ever increasing variety of domains and living conditions. Assuming that IT artifacts have to be understood in this socio‐technical way, traditional design criteria in CS (performance, correctness, stability or usability) need to be supplemented by methods and perspectives which illuminate the way in which technology and practice are mutually elaborating. This has involved, inter alia, new methodologies for the investigation of patterns of use and the gathering of requirements (including ethnographic work; 'living labs' and so on); new methodologies for design (methodologies which place flexibility and user involvement at the centre) and new approaches to the product lifecycle (which recognize the complex and long term nature of appropriation of technology by users and hence implicate a different understanding of evaluation). Nevertheless, these developments remain piecemeal. In our view, the field has to a degree been restricted in its development by a competition between theoretical perspectives largely founded in their disciplinary origins in sociology and psychology. The growth of a systematic and rigorous approach to practice‐ based, or human‐centred, computing requires new foundations. These foundations, we suggest, will be predicated on the resolution of a number of issues: 1. A clearer understanding of what we mean by practice and how it is socially embedded. 2. A more nuanced view of the different ways in which processes of empirical investigation and of construction may be linked to each other. 3. A better understanding of the way in which new design methodologies link to investigative approaches and of effective mechanisms for supporting stakeholder involvement. 4. A systematic approach to the use of technology which extends from early investigation into domains of practice through to investigation of the ways in which practices become embedded in social and organizational life. Our proposal, then, is for an edited book structured to reflect these issues and concerns. More specifically, this will be done by linking key methodological chapters to empirical chapters which illustrate these themes. To elaborate on this, the book will be divided into four parts. The first one elaborates on the theoretical foundations of design‐related work, specifically on the concepts of practice, design and appropriation. In the second part, different methodological approaches and how best to utilize them in design‐related enquiry will be presented and discussed. Again, the focus will be on the tailoring of investigative strategies for specific kinds of design problem (business ethnography, grounded design, integrated organization and technology development, mobility, cross‐ cultural work, inter‐organizational collaboration). The third part presents a sample of design case studies originated in different social and organizational contexts which can be understood as exemplars of more general problems. That is, each will orient in turn to the problem of comparability and ways in which cross‐cutting issues can be identified. Design case studies are understood as investigations into the practices before and after introducing the IT artifacts and the design process in support of these practices. They develop on a three phase research model, linking: empirical prestudy, the IT design and the investigation into its appropriation. We argue that design case studies or fractals of them should become a key element in Socio Informatics. In this sense, 'Socio Informatics' is epistemologically distinct from traditional approaches to CS in the sense that it creates highly context specific results and its findings are only valid in the context of their emergence. CS and even the traditional approaches to Human Centered Computing assume a context‐independent validity for these formal, algorithmic and design‐oriented findings. If research‐ findings are context‐specific we need to find new ways to reason about their transferability.},
  author = {Wulf, Volker and Pipek, Volkmar and Rohde, Markus and Stevens, Gunnar and Randall, Dave},
  year = {2017},
  }

• ---

  Stevens, G., Bossauer, P., Jakobi, T. & Pakusch, C. (2017)Second Dashboard: Information Demands in a Connected Car

  IN Mensch und Computer 2017-Tagungsband
  [BibTeX]

  @article{stevens_second_2017,
  title = {Second {Dashboard}: {Information} {Demands} in a {Connected} {Car}},
  journal = {Mensch und Computer 2017-Tagungsband},
  author = {Stevens, Gunnar and Bossauer, Paul and Jakobi, Timo and Pakusch, Christina},
  year = {2017},
  annote = {Publisher: Gesellschaft f\{ü\}r Informatik eV},
  }

• ---

  Castelli, N., Ogonowski, C., Jakobi, T., Stein, M., Stevens, G. & Wulf, V. (2017)What happened in my home?: An End-User Development Approach for Smart Home Data Visualization

  Proceedings of the Conference on Human Factors in Computing Systems (CHI).
  [BibTeX] [Abstract]

  Smart home systems change the way we experience the home. While there are established research fields within HCI for visualizing specific use cases of a smart home, studies targeting user demands on visualizations spanning across multiple use cases are rare. Especially, individual data-related demands pose a challenge for usable visualizations. To investigate potentials of an end-user development (EUD) approach for flexibly supporting such demands, we developed a smart home system featuring both pre-defined visualizations and a visualization creation tool. To evaluate our concept, we installed our prototype in 12 households as part of a Living Lab study. Results are based on three interview studies, a design workshop and system log data. We identified eight overarching interests in home data and show how participants used pre-defined visualizations to get an overview and the creation tool to not only address specific use cases but also to answer questions by creating temporary visualizations.

  @inproceedings{castelli_what_2017,
  title = {What happened in my home?: {An} {End}-{User} {Development} {Approach} for {Smart} {Home} {Data} {Visualization}},
  abstract = {Smart home systems change the way we experience the home. While there are established research fields within HCI for visualizing specific use cases of a smart home, studies targeting user demands on visualizations spanning across multiple use cases are rare. Especially, individual data-related demands pose a challenge for usable visualizations. To investigate potentials of an end-user development (EUD) approach for flexibly supporting such demands, we developed a smart home system featuring both pre-defined visualizations and a visualization creation tool. To evaluate our concept, we installed our prototype in 12 households as part of a Living Lab study. Results are based on three interview studies, a design workshop and system log data. We identified eight overarching interests in home data and show how participants used pre-defined visualizations to get an overview and the creation tool to not only address specific use cases but also to answer questions by creating temporary visualizations.},
  booktitle = {Proceedings of the {Conference} on {Human} {Factors} in {Computing} {Systems} ({CHI})},
  author = {Castelli, Nico and Ogonowski, Corinna and Jakobi, Timo and Stein, Martin and Stevens, Gunnar and Wulf, Volker},
  year = {2017},
  keywords = {a-paper, PRAXLABS, SMARTLIVE},
  }

2016

• ---

  Meurer, J., Ogonowski, C., Stevens, G. & Wulf, V. (2016)Nachhaltiges Innovationsmanagement in KMU : Eine empirische Untersuchung zu Living Labs as a Service

  Multikonferenz Wirtschaftsinformatik (MKWI)., Pages: 917–928
  [BibTeX] [Download PDF]

  @inproceedings{meurer_nachhaltiges_2016,
  title = {Nachhaltiges {Innovationsmanagement} in {KMU} : {Eine} empirische {Untersuchung} zu {Living} {Labs} as a {Service}},
  url = {http://www.mittelstand-digital.de/MD/Redaktion/DE/PDF/nachhaltiges-innovaionsmarketing,property=pdf,bereich=md,sprache=de,rwb=true.pdf},
  booktitle = {Multikonferenz {Wirtschaftsinformatik} ({MKWI})},
  author = {Meurer, Johanna and Ogonowski, Corinna and Stevens, Gunnar and Wulf, Volker},
  year = {2016},
  keywords = {PRAXLABS, SMARTLIVE, DBL},
  pages = {917--928},
  }

• ---

  Stickel, O., Ogonowski, C., Jakobi, T., Gunnar, S., Pipek, V., Wulf, V., Stevens, G., Pipek, V., Wulf, V., Gunnar, S., Pipek, V. & Wulf, V. (2016)User Integration in Agile Software Development Processes: Practices and Challenges in Small and Medium Sized Enterprises

  IN Cockton, G., Gregory, P., Lárusdóttir, M. & Cajander, A. (Eds.), Integrating User-Centred Design in Agile Development doi:10.1007/978-3-319-32165-3_1
  [BibTeX] [Download PDF]

  @incollection{stickel_user_2016,
  title = {User {Integration} in {Agile} {Software} {Development} {Processes}: {Practices} and {Challenges} in {Small} and {Medium} {Sized} {Enterprises}},
  isbn = {978-3-319-32163-9},
  url = {http://link.springer.com/10.1007/978-3-319-32165-3_1 http://link.springer.com/10.1007/978-3-319-32165-3%7B_%7D1},
  booktitle = {Integrating {User}-{Centred} {Design} in {Agile} {Development}},
  publisher = {Springer International Publishing AG Switzerland},
  author = {Stickel, Oliver and Ogonowski, Corinna and Jakobi, Timo and Gunnar, Stevens and Pipek, Volkmar and Wulf, Volker and Stevens, Gunnar and Pipek, Volkmar and Wulf, Volker and Gunnar, Stevens and Pipek, Volkmar and Wulf, Volker},
  editor = {Cockton, Gilbert and Gregory, Peggy and Lárusdóttir, Marta and Cajander, Asa},
  year = {2016},
  doi = {10.1007/978-3-319-32165-3_1},
  keywords = {CSCW, PRAXLABS, SMARTLIVE, CUBES},
  pages = {49--76},
  annote = {Section: 2},
  }

• ---

  Jakobi, T., Ogonowski, C., Castelli, N., Stevens, G. & Wulf, V. (2016)Das Zuhause smart machen – Erfahrungen aus Nutzersicht

  Mensch & Computer: Tagungsband., Publisher: accepted, Pages: 1–10
  [BibTeX] [Download PDF]

  @inproceedings{jakobi_zuhause_2016,
  title = {Das {Zuhause} smart machen – {Erfahrungen} aus {Nutzersicht}},
  url = {https://www.researchgate.net/profile/Corinna_Ogonowski/publication/307935722_Das_Zuhause_smart_machen_Erfahrungen_aus_Nutzersicht/links/57d2933508ae5f03b48caac4.pdf},
  booktitle = {Mensch \& {Computer}: {Tagungsband}},
  publisher = {accepted},
  author = {Jakobi, Timo and Ogonowski, Corinna and Castelli, Nico and Stevens, Gunnar and Wulf, Volker},
  year = {2016},
  keywords = {PRAXLABS, SMARTLIVE, DBL, Smart Live},
  pages = {1--10},
  }

• ---

  Jakobi, T., Ogonowski, C., Castelli, N., Stevens, G. & Wulf, V. (2016)Smart Home Experience Journey: Über den Einsatz und die Wahrnehmung von Smart Home-Technologien im Alltag

  IN WISSENSCHAFT TRIFFT PRAXIS, Pages: 12
  [BibTeX] [Download PDF]

  @article{jakobi_smart_2016,
  title = {Smart {Home} {Experience} {Journey}: Über den {Einsatz} und die {Wahrnehmung} von {Smart} {Home}-{Technologien} im {Alltag}},
  url = {http://www.connected-living.org/content/4-information/4-downloads/4-studien/1-wissenschaft-trifft-praxis-neue-formen-des-home-experience-design-juli-2016-quelle-mittelstand-digital/wissenschaft-trifft-praxis_neue-formen-des-home-experience-designs.pdf},
  journal = {WISSENSCHAFT TRIFFT PRAXIS},
  author = {Jakobi, Timo and Ogonowski, Corinna and Castelli, Nico and Stevens, Gunnar and Wulf, Volker},
  year = {2016},
  keywords = {SMARTLIVE, DBL},
  pages = {12},
  }

• ---

  Pakusch, C., Bossauer, P., Meurer, J. & Stevens, G. (2016)Computergestuetzte Mobilitaetsforschung. Fragestellungen, Daten und Methoden

  IN Internationales Verkehrswesen, Pages: 57–60
  [BibTeX]

  @article{pakusch_computergestuetzte_2016,
  title = {Computergestuetzte {Mobilitaetsforschung}. {Fragestellungen}, {Daten} und {Methoden}},
  issn = {0020-9511},
  number = {4},
  journal = {Internationales Verkehrswesen},
  author = {Pakusch, Christina and Bossauer, Paul and Meurer, Johanna and Stevens, Gunnar},
  year = {2016},
  pages = {57--60},
  }

• ---

  Castelli, N. & Stevens, G. (2016)Das Zuhause verstehen: Eine Literaturstudie zur Visualisierung von Verbrauchsdaten

  IN WISSENSCHAFT TRIFFT PRAXIS, Pages: 58
  [BibTeX]

  @article{castelli_zuhause_2016,
  title = {Das {Zuhause} verstehen: {Eine} {Literaturstudie} zur {Visualisierung} von {Verbrauchsdaten}},
  journal = {WISSENSCHAFT TRIFFT PRAXIS},
  author = {Castelli, Nico and Stevens, Gunnar},
  year = {2016},
  keywords = {SMARTLIVE, DBL},
  pages = {58},
  }

• ---

  Pakusch, C., Bossauer, P., Shakoor, M. & Stevens, G. (2016)Using, Sharing, and Owning Smart Cars-A Future Scenario Analysis Taking General Socio-Technical Trends into Account

  [BibTeX] [Download PDF]

  @article{pakusch_using_2016,
  title = {Using, {Sharing}, and {Owning} {Smart} {Cars}-{A} {Future} {Scenario} {Analysis} {Taking} {General} {Socio}-{Technical} {Trends} into {Account}},
  url = {https://pub.h-brs.de/frontdoor/index/index/docId/2739},
  author = {Pakusch, Christina and Bossauer, Paul and Shakoor, Markus and Stevens, Gunnar},
  year = {2016},
  keywords = {DBL},
  }

• ---

  Castelli, N., Stevens, G., Jakobi, T. & Schönau, N. (2016)Beyond Eco-feedback: Using Room as a Context to Design New Eco-support Features at Home

  IN Advances and \New\ \Trends\ in \Environmental\ and \Energy\ \Informatics\
  [BibTeX]

  @incollection{castelli_beyond_2016,
  title = {Beyond {Eco}-feedback: {Using} {Room} as a {Context} to {Design} {New} {Eco}-support {Features} at {Home}},
  booktitle = {Advances and \{{New}\} \{{Trends}\} in \{{Environmental}\} and \{{Energy}\} \{{Informatics}\}},
  publisher = {Springer, Cham},
  author = {Castelli, Nico and Stevens, Gunnar and Jakobi, Timo and Schönau, Niko},
  year = {2016},
  pages = {177--195},
  }

• ---

  Rohde, M., Brödner, P., Stevens, G. & Wulf, V. (2016)Grounded Design: A Praxeological IS Research Perspective

  IN Journal of Information Technology (JIT) doi:DOI: 10.1057/jit.2016.5
  [BibTeX] [Download PDF]

  @article{rohde_grounded_2016,
  title = {Grounded {Design}: {A} {Praxeological} {IS} {Research} {Perspective}},
  url = {http://link.springer.com/article/10.1057/jit.2016.5},
  doi = {DOI: 10.1057/jit.2016.5},
  journal = {Journal of Information Technology (JIT)},
  author = {Rohde, Markus and Brödner, Peter and Stevens, Gunnar and Wulf, Volker},
  year = {2016},
  keywords = {A-Paper, DBL},
  }

• ---

  Jakobi, T., Castelli, N., Nolte, A., Schönau, N. & Stevens, G. (2016)Towards Collaborative Green Business Process Management as a Conceptual Framework

  IN Advances and New Trends in Environmental and Energy Informatics
  [BibTeX]

  @incollection{jakobi_towards_2016,
  title = {Towards {Collaborative} {Green} {Business} {Process} {Management} as a {Conceptual} {Framework}},
  booktitle = {Advances and {New} {Trends} in {Environmental} and {Energy} {Informatics}},
  publisher = {Springer, Cham},
  author = {Jakobi, Timo and Castelli, Nico and Nolte, Alexander and Schönau, Niko and Stevens, Gunnar},
  year = {2016},
  pages = {275--293},
  }

• ---

  Stevens, G., Meurer, J., Pakusch, C. & Bossauer, P. (2016)From a Driver-centric towards a Service-centric lens on Self-Driving Cars

  CHI 2016 Workshop: HCI and Autonomous Vehicles: Contextual Experience Informs Design. San José, USA.
  [BibTeX]

  @inproceedings{stevens_driver-centric_2016,
  title = {From a {Driver}-centric towards a {Service}-centric lens on {Self}-{Driving} {Cars}},
  booktitle = {{CHI} 2016 {Workshop}: {HCI} and {Autonomous} {Vehicles}: {Contextual} {Experience} {Informs} {Design}. {San} {José}, {USA}},
  author = {Stevens, Gunnar and Meurer, Johanna and Pakusch, Christina and Bossauer, Paul},
  year = {2016},
  keywords = {a-paper, PRAXLABS},
  }

• ---

  Winter, D., Bittenbinder, S. & Stevens, G. (2016)Der interne UX-Stammtisch – Entwicklung einer Community of Practice für UX-Professionals im Unternehmen

  IN , Vol. Tagungsband UP16 doi:10.18420/muc2016-up-0026
  [BibTeX] [Abstract] [Download PDF]

  UX-Professionals stehen vor der Aufgabe ihre Fertigkeiten und Kenntnisse kontinuierlich auszubauen. Eine Möglichkeit dies zu tun sind Communities of Practice, also Gemeinschaften von Personen mit ähnlichen Aufgaben und Schwerpunkten sowie einem gemeinsamen Interesse an Lösungen. Sie agieren weitgehend selbstorganisiert und dienen dem Austausch und der gegenseitigen Unterstützung. So entstehen ein gemeinsamer Wissensschatz sowie ein Netzwerk zwischen allen UX-Interessierten. Der Aufbau einer Community of Practice für UX-Professionals wurde in einem mittelständigen Unternehmen über 18 Monate begleitet und ausgewertet. Die Ergebnisse führten zu Handlungsempfehlungen, um Hindernisse beim Aufbau zu reduzieren und einen Mehrwert für alle Beteiligten herbeizuführen.

  @article{winter_interne_2016,
  title = {Der interne {UX}-{Stammtisch} - {Entwicklung} einer {Community} of {Practice} für {UX}-{Professionals} im {Unternehmen}},
  volume = {Tagungsband UP16},
  url = {http://dl.gi.de/handle/20.500.12116/5472},
  doi = {10.18420/muc2016-up-0026},
  abstract = {UX-Professionals stehen vor der Aufgabe ihre Fertigkeiten und Kenntnisse kontinuierlich auszubauen. Eine Möglichkeit dies zu tun sind Communities of Practice, also Gemeinschaften von Personen mit ähnlichen Aufgaben und Schwerpunkten sowie einem gemeinsamen Interesse an Lösungen. Sie agieren weitgehend selbstorganisiert und dienen dem Austausch und der gegenseitigen Unterstützung. So entstehen ein gemeinsamer Wissensschatz sowie ein Netzwerk zwischen allen UX-Interessierten. Der Aufbau einer Community of Practice für UX-Professionals wurde in einem mittelständigen Unternehmen über 18 Monate begleitet und ausgewertet. Die Ergebnisse führten zu Handlungsempfehlungen, um Hindernisse beim Aufbau zu reduzieren und einen Mehrwert für alle Beteiligten herbeizuführen.},
  language = {de},
  urldate = {2022-06-21},
  author = {Winter, Dominique and Bittenbinder, Sven and Stevens, Gunnar},
  year = {2016},
  note = {Accepted: 2017-11-18T00:25:42Z
  Publisher: Gesellschaft für Informatik e.V. und die German UPA e.V},
  }

2015

• ---

  Jakobi, T. & Stevens, G. (2015)Potentials of energy consumption measurements in office environments

  Proceeding of ICT4S ’15., Publisher: Atlantis Press, Pages: 345–352 doi:10.2991/ict4s-env-15.2015.39
  [BibTeX] [Download PDF]

  @inproceedings{jakobi_potentials_2015,
  title = {Potentials of energy consumption measurements in office environments},
  isbn = {978-94-6252-092-9},
  url = {http://www.atlantis-press.com/php/paper-details.php?id=25836183},
  doi = {10.2991/ict4s-env-15.2015.39},
  booktitle = {Proceeding of {ICT4S} '15},
  publisher = {Atlantis Press},
  author = {Jakobi, Timo and Stevens, Gunnar},
  year = {2015},
  keywords = {SMARTLIVE},
  pages = {345--352},
  }

• ---

  Ogonowski, C., Jakobi, T., Stevens, G. & Meurer, J. (2015)Living Lab As A Service: Das Living Lab als Dienstleistungsbaukasten zur Nutzer-zentrierten Entwicklung und Evaluation innovativer Smart Home Lösungen

  Mensch & Computer: Workshopband. Stuttgart, Publisher: Oldenbourg Wissensverlag, Pages: 701–711
  [BibTeX] [Download PDF]

  @inproceedings{ogonowski_living_2015,
  address = {Stuttgart},
  title = {Living {Lab} {As} {A} {Service}: {Das} {Living} {Lab} als {Dienstleistungsbaukasten} zur {Nutzer}-zentrierten {Entwicklung} und {Evaluation} innovativer {Smart} {Home} {Lösungen}},
  url = {http://www.degruyter.com/dg/viewbooktoc.chapterlist.resultlinks.fullcontentlink:pdfeventlink/$002fbooks$002f9783110443905$002f9783110443905-094$002f9783110443905-094.pdf?t:ac=product/462127},
  booktitle = {Mensch \& {Computer}: {Workshopband}},
  publisher = {Oldenbourg Wissensverlag},
  author = {Ogonowski, Corinna and Jakobi, Timo and Stevens, Gunnar and Meurer, Johanna},
  editor = {Weisbecker, A and Burmester, M and Schmidt, A},
  year = {2015},
  keywords = {PRAXLABS, SMARTLIVE, DBL, LivingLabEnergy},
  pages = {701--711},
  }

• ---

  Jakobi, T. & Stevens, G. (2015)Energy saving at work – and when not working! Insights from a comparative study

  IN Proceedings of EnviroInfo ’15, Pages: 180–189 doi:10.2991/ict4s-env-15.2015.21
  [BibTeX] [Download PDF]

  @article{jakobi_energy_2015,
  title = {Energy saving at work - and when not working! {Insights} from a comparative study},
  url = {http://www.atlantis-press.com/php/paper-details.php?id=25836165},
  doi = {10.2991/ict4s-env-15.2015.21},
  journal = {Proceedings of EnviroInfo '15},
  author = {Jakobi, Timo and Stevens, Gunnar},
  year = {2015},
  keywords = {PRAXLABS, SMARTLIVE, DBL},
  pages = {180--189},
  annote = {ISBN: 978-94-6252-092-9 Publisher: Atlantis Press},
  }

• ---

  Stickel, O., Ogonowski, C., Jakobi, T., Stevens, G., Pipek, V. & Wulf, V. (2015)Praktiken der Nutzerintegration im Entwicklungsprozess von KMU

  Mensch & Computer: Tagungsband (Honorable Mention). Stuttgart, Publisher: De Gruyter Oldenbourg, Pages: 103–112
  [BibTeX] [Download PDF]

  @inproceedings{stickel_praktiken_2015,
  address = {Stuttgart},
  title = {Praktiken der {Nutzerintegration} im {Entwicklungsprozess} von {KMU}},
  url = {http://dl.mensch-und-computer.de/handle/123456789/4603 http://www.degruyter.com/dg/viewbooktoc.chapterlist.resultlinks.fullcontentlink:pdfeventlink/$002fbooks$002f9783110443929$002f9783110443929-012$002f9783110443929-012.pdf?t:ac=produ},
  booktitle = {Mensch \& {Computer}: {Tagungsband} ({Honorable} {Mention})},
  publisher = {De Gruyter Oldenbourg},
  author = {Stickel, Oliver and Ogonowski, Corinna and Jakobi, Timo and Stevens, Gunnar and Pipek, Volkmar and Wulf, Volker},
  editor = {Diefenbach, Sarah and Henze, Niels and Pielot, Martin},
  year = {2015},
  keywords = {CSCW, PRAXLABS, SMARTLIVE, DBL, CUBES},
  pages = {103--112},
  }

• ---

  Wulf, V., Pipek, V., Rohde, M., Schmidt, K., Stevens, G. & Randall, D. (2015)Socio Informatics – A Practice-based Perspective

  , Publisher: Oxford University Press
  [BibTeX]

  @book{wulf_socio_2015,
  title = {Socio {Informatics} – {A} {Practice}-based {Perspective}},
  publisher = {Oxford University Press},
  author = {Wulf, Volker and Pipek, Volkmar and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar and Randall, David},
  year = {2015},
  }

• ---

  Wulf, V., Müller, C., Pipek, V., Randall, D., Rohde, M. & Stevens, G. (2015)Designing Socially Embedded Technologies in the Real-World

  IN Designing Socially Embedded Technologies in the Real-World London, United Kingdom doi:10.1007/978-1-4471-6720-4
  [BibTeX] [Download PDF]

  @incollection{wulf_designing_2015,
  address = {London, United Kingdom},
  title = {Designing {Socially} {Embedded} {Technologies} in the {Real}-{World}},
  isbn = {978-1-4471-6719-8},
  url = {http://link.springer.com/10.1007/978-1-4471-6720-4},
  booktitle = {Designing {Socially} {Embedded} {Technologies} in the {Real}-{World}},
  publisher = {Springer},
  author = {Wulf, Volker and Müller, Claudia and Pipek, Volkmar and Randall, Dave and Rohde, Markus and Stevens, Gunnar},
  year = {2015},
  doi = {10.1007/978-1-4471-6720-4},
  keywords = {italg},
  pages = {111--150},
  }

• ---

  Dax, J., Ludwig, T., Meurer, J., Pipek, V., Stein, M. & Stevens, G. (2015)FRAMES – A Framework for Adaptable Mobile Event-Contingent Self-report Studies

  End-User Development – 5th International Symposium, IS-EUD 2015, Madrid, Spain, May 26-29, 2015. Proceedings., Publisher: Springer, Pages: 141–155 doi:10.1007/978-3-319-18425-8_10
  [BibTeX] [Download PDF]

  @inproceedings{dax_frames_2015,
  series = {Lecture {Notes} in {Computer} {Science}},
  title = {{FRAMES} - {A} {Framework} for {Adaptable} {Mobile} {Event}-{Contingent} {Self}-report {Studies}},
  volume = {9083},
  isbn = {978-3-319-18424-1},
  url = {http://dx.doi.org/10.1007/978-3-319-18425-8_10 http://link.springer.com/chapter/10.1007/978-3-319-18425-8_10 http://www.tholud.de/wp-content/uploads/2015/07/2015-daxetal-frames-iseud.pdf},
  doi = {10.1007/978-3-319-18425-8_10},
  booktitle = {End-{User} {Development} - 5th {International} {Symposium}, {IS}-{EUD} 2015, {Madrid}, {Spain}, {May} 26-29, 2015. {Proceedings}},
  publisher = {Springer},
  author = {Dax, Julian and Ludwig, Thomas and Meurer, Johanna and Pipek, Volkmar and Stein, Martin and Stevens, Gunnar},
  editor = {D\${\textbackslash}textbackslashbackslash\$'\${\textbackslash}textbackslashbackslash\$iaz, Paloma and Pipek, Volkmar and Ardito, Carmelo and Jensen, Carlos and Aedo, Ignacio and Boden, Alexander},
  year = {2015},
  keywords = {CSCW, PRAXLABS, DBL, CUBES},
  pages = {141--155},
  }

• ---

  Brandenburg, S., Burmester, M., Denzinger, J., Döbelt, S., Schmidt, R. & Stevens, G. (2015)Usability für die betriebliche Praxis Skalierung und Einsatz von UUX- Methoden in kleinen und mittleren Unternehmen

  Mensch & Computer: Workshopband. Stuttgart, Publisher: Oldenbourg Wissenschaftsverlag, Pages: 679–683
  [BibTeX]

  @inproceedings{brandenburg_usability_2015,
  address = {Stuttgart},
  title = {Usability für die betriebliche {Praxis} {Skalierung} und {Einsatz} von {UUX}- {Methoden} in kleinen und mittleren {Unternehmen}},
  booktitle = {Mensch \& {Computer}: {Workshopband}},
  publisher = {Oldenbourg Wissenschaftsverlag},
  author = {Brandenburg, Stefan and Burmester, Michael and Denzinger, Jochen and Döbelt, Susen and Schmidt, Ralf and Stevens, Gunnar},
  editor = {Weisbecker, A and Burmester, M and Schmidt, A},
  year = {2015},
  keywords = {PRAXLABS},
  pages = {679--683},
  }

• ---

  Schwartz, T., Stevens, G., Jakobi, T., Denef, S., Ramirez, L., Wulf, V. & Randall, D. (2015)What people do with consumption feedback: a long-term living lab study of a home energy management system

  IN Interacting with Computers, Vol. 27, Pages: 551–576
  [BibTeX]

  @article{schwartz_what_2015,
  title = {What people do with consumption feedback: a long-term living lab study of a home energy management system},
  volume = {27},
  issn = {0953-5438},
  number = {6},
  journal = {Interacting with Computers},
  author = {Schwartz, Tobias and Stevens, Gunnar and Jakobi, Timo and Denef, Sebastian and Ramirez, Leonardo and Wulf, Volker and Randall, Dave},
  year = {2015},
  keywords = {sustainability, user studies, empirical studies in interaction design},
  pages = {551--576},
  }

• ---

  Castelli, N., Schönau, N., Stevens, G., Schwartz, T. & Jakobi, T. (2015)Role-based Eco-info Systems: An Organizational Theoretical View of Sustainable HCI at Work

  , Publisher: ECIS
  [BibTeX] [Download PDF]

  @inproceedings{castelli_role-based_2015,
  title = {Role-based {Eco}-info {Systems}: {An} {Organizational} {Theoretical} {View} of {Sustainable} {HCI} at {Work}},
  shorttitle = {Role-based {Eco}-info {Systems}},
  url = {http://aisel.aisnet.org/cgi/viewcontent.cgi?article=1023&context=ecis2015_cr},
  publisher = {ECIS},
  author = {Castelli, Nico and Schönau, Niko and Stevens, Gunnar and Schwartz, Tobias and Jakobi, Timo},
  year = {2015},
  keywords = {SMARTLIVE, UUIS},
  }

• ---

  Wulf, V., Müller, C., Pipek, V., Randall, D., Rohde, M. & Stevens, G. (2015)Practice-Based Computing: Empirically Grounded Conceptualizations Derived from Design Case Studies

  IN Wulf, V., Schmidt, K. & Randall, D. (Eds.), Designing Socially Embedded Technologies in the Real-World London doi:10.1007/978-1-4471-6720-4_7
  [BibTeX] [Abstract] [Download PDF]

  The introduction of IT has changed the way we live in many ways. Historically, it can even be argued that socially embedded applications of information technology challenge and change practices to an extent rarely seen before with any other type of technological artefacts. If these IT artefacts have strong and recurrent impacts on people’s lives, we need to reconsider design practice artefacts which allow for anticipating use practices and bring together inspirational creativity with evaluative methods. Approaches such as Participatory Design (Greenbaum and Kyng 1991) and User‐Driven Innovation (von Hippel 2005) have already significantly increased the level of involvement of users and their fields of practice into IT development and have strengthened the role of ethnographic methods as well as the importance of methods providing direct user feedback. But even a strong component of domain analysis or user participation does not warrant an accurate anticipation of the changes in social practices resulting from new technological artefacts or infrastructures. Moreover, the immaterial nature of software contributes to its application beyond the originally intended context. The material and social foundations of IT usage have significantly changed over the past two decades. Technologically, the standardization of communication interfaces, the increase of bandwidth and speed of internet connections and their ubiquitous availability have connected more and more devices with each other. At a social level this has also created stronger connections between professional and private domains and practices, offering new room to adapt these practices and re‐negotiate their relations and compositions. These developments have made us now look at ecosystems (Draxler et al. 2015) or infrastructures (Star and Ruhleder 1996) of technology‐based practices. With regard to methods, EUSSET’s research agenda would benefit from a convergence of a broadly defined research program which looks at technology development as well as scenarios of usage and accumulates results in various ways, bridging the gap between a simple ‘technology‐in‐practice‘ perspective and a ‘technology‐based practice change‘ perspective. We need to consider how to carefully transfer emerging design concepts, IT artefacts, and pattern of appropriation derived in a specific context to other fields of application. We also need to better understand how to transfer findings gained with the design and appropriation of one artefact towards that of another, related one. In this paper we will outline a research program, called practice‐based computing, which suggests collecting a corpus of highly contextualized design case studies and supports the transferability of insights by comparative concept building on top of these cases.

  @incollection{wulf_practice-based_2015,
  address = {London},
  title = {Practice-{Based} {Computing}: {Empirically} {Grounded} {Conceptualizations} {Derived} from {Design} {Case} {Studies}},
  isbn = {978-1-4471-6719-8},
  url = {http://dx.doi.org/10.1007/978-1-4471-6720-4_7 http://link.springer.com/10.1007/978-1-4471-6720-4_7},
  abstract = {The introduction of IT has changed the way we live in many ways. Historically, it can even be argued that socially embedded applications of information technology challenge and change practices to an extent rarely seen before with any other type of technological artefacts. If these IT artefacts have strong and recurrent impacts on people's lives, we need to reconsider design practice artefacts which allow for anticipating use practices and bring together inspirational creativity with evaluative methods. Approaches such as Participatory Design (Greenbaum and Kyng 1991) and User‐Driven Innovation (von Hippel 2005) have already significantly increased the level of involvement of users and their fields of practice into IT development and have strengthened the role of ethnographic methods as well as the importance of methods providing direct user feedback. But even a strong component of domain analysis or user participation does not warrant an accurate anticipation of the changes in social practices resulting from new technological artefacts or infrastructures. Moreover, the immaterial nature of software contributes to its application beyond the originally intended context. The material and social foundations of IT usage have significantly changed over the past two decades. Technologically, the standardization of communication interfaces, the increase of bandwidth and speed of internet connections and their ubiquitous availability have connected more and more devices with each other. At a social level this has also created stronger connections between professional and private domains and practices, offering new room to adapt these practices and re‐negotiate their relations and compositions. These developments have made us now look at ecosystems (Draxler et al. 2015) or infrastructures (Star and Ruhleder 1996) of technology‐based practices. With regard to methods, EUSSET's research agenda would benefit from a convergence of a broadly defined research program which looks at technology development as well as scenarios of usage and accumulates results in various ways, bridging the gap between a simple ‘technology‐in‐practice' perspective and a ‘technology‐based practice change' perspective. We need to consider how to carefully transfer emerging design concepts, IT artefacts, and pattern of appropriation derived in a specific context to other fields of application. We also need to better understand how to transfer findings gained with the design and appropriation of one artefact towards that of another, related one. In this paper we will outline a research program, called practice‐based computing, which suggests collecting a corpus of highly contextualized design case studies and supports the transferability of insights by comparative concept building on top of these cases.},
  booktitle = {Designing {Socially} {Embedded} {Technologies} in the {Real}-{World}},
  publisher = {Springer London},
  author = {Wulf, Volker and Müller, Claudia and Pipek, Volkmar and Randall, David and Rohde, Markus and Stevens, Gunnar},
  editor = {Wulf, Volker and Schmidt, Kjeld and Randall, David},
  year = {2015},
  doi = {10.1007/978-1-4471-6720-4_7},
  keywords = {italg, CSCW, PRAXLABS, DBL},
  pages = {111--150},
  }

2014

• ---

  Castelli, N., Ogonowski, C., Stevens, G. & Jakobi, T. (2014)Placing information at home

  UbiComp ’14 Adjunct Proceedings. New York, New York, USA, Publisher: ACM Press, Pages: 919–922 doi:10.1145/2638728.2641548
  [BibTeX] [Download PDF]

  @inproceedings{castelli_placing_2014-1,
  address = {New York, New York, USA},
  title = {Placing information at home},
  isbn = {978-1-4503-3047-3},
  url = {http://dl.acm.org/citation.cfm?id=2638728.2641548},
  doi = {10.1145/2638728.2641548},
  booktitle = {{UbiComp} '14 {Adjunct} {Proceedings}},
  publisher = {ACM Press},
  author = {Castelli, Nico and Ogonowski, Corinna and Stevens, Gunnar and Jakobi, Timo},
  month = sep,
  year = {2014},
  keywords = {PRAXLABS, SMARTLIVE, context-awareness, consumption feedback, eco-feedback, hems, home energy management system, indoor-positioning},
  pages = {919--922},
  }

• ---

  Castelli, N., Stevens, G., Jakobi, T. & Ogonowski, C. (2014)Placing information at home: using room context in domestic design

  , Publisher: ACM, Pages: 919–922
  [BibTeX]

  @inproceedings{castelli_placing_2014,
  title = {Placing information at home: using room context in domestic design},
  isbn = {1-4503-3047-9},
  publisher = {ACM},
  author = {Castelli, Nico and Stevens, Gunnar and Jakobi, Timo and Ogonowski, Corinna},
  year = {2014},
  pages = {919--922},
  }

• ---

  Boden, A., Rosswog, F., Stevens, G. & Wulf, V. (2014)Articulation spaces

  IN Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing – CSCW ’14, Pages: 1120–1130 doi:10.1145/2531602.2531621
  [BibTeX] [Abstract] [Download PDF]

  The high complexity of knowledge-intensive work such as software development makes it beneficial to have spaces for formal and informal articulation work. Existing information systems (IS) tend to treat these different aspects of coordination separately, resulting in problems of awareness and coordination. To bridge this gap, we present the concept of Articulation Spaces which combines aspects of Coordination Mechanisms and Common Information Spaces (CIS) in order to provide a room for mediating between the formal and informal aspects of coordination. Based on a design study in the form of a lightweight public display that has been tested in a medium-sized German software company, we show how Articulation Spaces provide information for meta-coordination, encourage ad-hoc coordination and support decision-making processes. Our findings provide insights into the design of support systems for flexible and coordination-intensive contexts such as software development work. Copyright © 2014 ACM.

  @article{boden_articulation_2014,
  title = {Articulation spaces},
  url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84898928813&partnerID=tZOtx3y1},
  doi = {10.1145/2531602.2531621},
  abstract = {The high complexity of knowledge-intensive work such as software development makes it beneficial to have spaces for formal and informal articulation work. Existing information systems (IS) tend to treat these different aspects of coordination separately, resulting in problems of awareness and coordination. To bridge this gap, we present the concept of Articulation Spaces which combines aspects of Coordination Mechanisms and Common Information Spaces (CIS) in order to provide a room for mediating between the formal and informal aspects of coordination. Based on a design study in the form of a lightweight public display that has been tested in a medium-sized German software company, we show how Articulation Spaces provide information for meta-coordination, encourage ad-hoc coordination and support decision-making processes. Our findings provide insights into the design of support systems for flexible and coordination-intensive contexts such as software development work. Copyright © 2014 ACM.},
  journal = {Proceedings of the 17th ACM conference on Computer supported cooperative work \& social computing - CSCW '14},
  author = {Boden, Alexander and Rosswog, Frank and Stevens, Gunnar and Wulf, Volker},
  year = {2014},
  keywords = {Articulation Work, Common Information Spaces, Coordination, Coordination Mechanism, Formal and Informal Communication, Lightweight Displays, Small Companies, Software Development},
  pages = {1120--1130},
  annote = {ISBN: 9781450325400},
  }

• ---

  Draxler, S., Stickel, O., Winter, D. & Stevens, G. (2014)Nutzerintegration in Softwareprojekte durch Multi-Channel Feedback

  Mensch & Computer: Tagungsband. München, Germany, Publisher: De Gruyter Oldenbourg, Pages: 175–184
  [BibTeX] [Download PDF]

  @inproceedings{draxler_nutzerintegration_2014,
  address = {München, Germany},
  title = {Nutzerintegration in {Softwareprojekte} durch {Multi}-{Channel} {Feedback}},
  url = {http://dl.mensch-und-computer.de/handle/123456789/3802},
  booktitle = {Mensch \& {Computer}: {Tagungsband}},
  publisher = {De Gruyter Oldenbourg},
  author = {Draxler, Sebastian and Stickel, Oliver and Winter, Dominique and Stevens, Gunnar},
  editor = {Butz, Andreas and Koch, Michael and Schlichter, Johann H},
  year = {2014},
  keywords = {CSCW, CUBES},
  pages = {175--184},
  }

• ---

  Boden, A., Rosswog, F., Stevens, G. & Wulf, V. (2014)Mobile Displays in Global Software Development: Opportunities and Limitations

  Position paper for Workshop on Global Software Development in a CSCW Perspective. Baltimore
  [BibTeX] [Download PDF]

  @inproceedings{boden_mobile_2014,
  address = {Baltimore},
  title = {Mobile {Displays} in {Global} {Software} {Development}: {Opportunities} and {Limitations}},
  url = {http://nexgsd.org/events/cscw2014-workshop/position-papers/},
  booktitle = {Position paper for {Workshop} on {Global} {Software} {Development} in a {CSCW} {Perspective}},
  author = {Boden, Alexander and Rosswog, Frank and Stevens, Gunnar and Wulf, Volker},
  year = {2014},
  }

• ---

  Boden, A., Dörner, C., Draxler, S., Pipek, V., Stevens, G. & Wulf, V. (2014)Tangible and Screen-Based Interfaces for End-User Workflow Modeling

  IN IEEE Software, Vol. 31, Pages: 65–71 doi:10.1109/MS.2013.71
  [BibTeX] [Download PDF]

  @article{boden_tangible_2014,
  title = {Tangible and {Screen}-{Based} {Interfaces} for {End}-{User} {Workflow} {Modeling}},
  volume = {31},
  url = {http://dx.doi.org/10.1109/MS.2013.71},
  doi = {10.1109/MS.2013.71},
  number = {4},
  journal = {IEEE Software},
  author = {Boden, Alexander and Dörner, Christian and Draxler, Sebastian and Pipek, Volkmar and Stevens, Gunnar and Wulf, Volker},
  year = {2014},
  keywords = {A-Paper, CSCW, PRAXLABS, EUDISMES, MdK},
  pages = {65--71},
  }

• ---

  Jakobi, T., Stevens, G. & Schwartz, T. (2014)Verhaltensbasiertes Energiesparen am Arbeitsplatz: Ergebnisse einer vergleichenden Studie

  Multikonferenz Wirtschaftsinformatik (MKWI)., Publisher: Universit\\\\ä\\\\tsverlag Paderborn, Pages: 76–88
  [BibTeX]

  @inproceedings{jakobi_verhaltensbasiertes_2014,
  title = {Verhaltensbasiertes {Energiesparen} am {Arbeitsplatz}: {Ergebnisse} einer vergleichenden {Studie}},
  booktitle = {Multikonferenz {Wirtschaftsinformatik} ({MKWI})},
  publisher = {Universit\{\{\}\{ä\}\{\}\}tsverlag Paderborn},
  author = {Jakobi, Timo and Stevens, Gunnar and Schwartz, Tobias},
  year = {2014},
  keywords = {PRAXLABS},
  pages = {76--88},
  }

• ---

  Schönau, N., Schwartz, T., Jakobi, T., Castelli, N. & Stevens, G. (2014)Findings of an Action Research on implementing an Integrated Energy Management in a German SME

  BIS-Verlag., Publisher: BIS-Verlag, Pages: 581–588
  [BibTeX]

  @inproceedings{schonau_findings_2014,
  title = {Findings of an {Action} {Research} on implementing an {Integrated} {Energy} {Management} in a {German} {SME}},
  booktitle = {{BIS}-{Verlag}},
  publisher = {BIS-Verlag},
  author = {Schönau, Niko and Schwartz, Tobias and Jakobi, Timo and Castelli, Nico and Stevens, Gunnar},
  editor = {Jorge Marx Gómez Michael Sonnenschein, Ute Vogel Andreas Winter Barbara Rapp Nils Giesen},
  year = {2014},
  keywords = {LivingLabEnergy},
  pages = {581--588},
  }

• ---

  Stickel, O., Draxler, S. & Stevens, G. (2014)Customer feedback and UCD in agile software development

  Proceedings of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational.
  [BibTeX] [Download PDF]

  @inproceedings{stickel_customer_2014,
  title = {Customer feedback and {UCD} in agile software development},
  url = {https://www.researchgate.net/publication/267481136_Customer_Feedback_and_UCD_in_Agile_Software_Development},
  booktitle = {Proceedings of the 8th {Nordic} {Conference} on {Human}-{Computer} {Interaction}: {Fun}, {Fast}, {Foundational}},
  author = {Stickel, Oliver and Draxler, Sebastian and Stevens, Gunnar},
  year = {2014},
  keywords = {CSCW, CUBES},
  }

• ---

  von Rekowski, T., Boden, A., Stickel, O., Hornung, D. & Stevens, G. (2014)Playful, collaborative approaches to 3D modeling and 3D printing

  Mensch & Computer: Tagungsband., Publisher: De Gruyter Oldenbourg, Pages: 363–366
  [BibTeX] [Download PDF]

  @inproceedings{von_rekowski_playful_2014,
  title = {Playful, collaborative approaches to {3D} modeling and {3D} printing},
  url = {http://dl.mensch-und-computer.de/handle/123456789/3845},
  booktitle = {Mensch \& {Computer}: {Tagungsband}},
  publisher = {De Gruyter Oldenbourg},
  author = {von Rekowski, Thomas and Boden, Alexander and Stickel, Oliver and Hornung, Dominik and Stevens, Gunnar},
  editor = {Butz, Andreas and Koch, Michael and Schlichter, Johann H},
  year = {2014},
  keywords = {CSCW, Come\_In, FabLab},
  pages = {363--366},
  }

• ---

  Jakobi, T., Castelli, N., Nolte, A., Stevens, G. & Schönau, N. (2014)Towards Collaborative Green Business Process Management

  BIS-Verlag., Publisher: BIS-Verlag, Pages: 683–690
  [BibTeX]

  @inproceedings{jakobi_towards_2014,
  title = {Towards {Collaborative} {Green} {Business} {Process} {Management}},
  booktitle = {{BIS}-{Verlag}},
  publisher = {BIS-Verlag},
  author = {Jakobi, Timo and Castelli, Nico and Nolte, Alexander and Stevens, Gunnar and Schönau, Niko},
  editor = {Jorge Marx Gómez Michael Sonnenschein, Ute Vogel Andreas Winter Barbara Rapp Nils Giesen},
  year = {2014},
  keywords = {PRAXLABS, SMARTLIVE, LivingLabEnergy},
  pages = {683--690},
  }

• ---

  Stickel, O., Boden, A., Stevens, G., Pipek, V. & Wulf, V. (2014)Bottom-Up Kultur in Siegen: Ein Bericht über aktuelle Strukturen, Entwicklungen und Umnutzungsprozesse

  IN Diagonal, Vol. 35, Pages: 55–70 doi:10.14220/digo.2014.35.1.55
  [BibTeX] [Download PDF]

  @article{stickel_bottom-up_2014,
  title = {Bottom-{Up} {Kultur} in {Siegen}: {Ein} {Bericht} über aktuelle {Strukturen}, {Entwicklungen} und {Umnutzungsprozesse}},
  volume = {35},
  issn = {0938-7161},
  url = {http://www.vr-elibrary.de/doi/abs/10.14220/digo.2014.35.1.55},
  doi = {10.14220/digo.2014.35.1.55},
  number = {1},
  journal = {Diagonal},
  author = {Stickel, Oliver and Boden, Alexander and Stevens, Gunnar and Pipek, Volkmar and Wulf, Volker},
  year = {2014},
  keywords = {CSCW, FabLab},
  pages = {55--70},
  }

• ---

  Stevens, G., Jakobi, T. & Detken, K. (2014)Mehrseitige, barrierefreie Sicherheit intelligenter Messsysteme

  IN Datenschutz und Datensicherheit, Vol. 38, Pages: 536–544
  [BibTeX] [Download PDF]

  @article{stevens_mehrseitige_2014,
  title = {Mehrseitige, barrierefreie {Sicherheit} intelligenter {Messsysteme}},
  volume = {38},
  url = {https://doi.org/10.1007/s11623-014-0180-z},
  number = {8/2014},
  journal = {Datenschutz und Datensicherheit},
  author = {Stevens, Gunnar and Jakobi, Timo and Detken, Kai-Oliver},
  year = {2014},
  keywords = {PRAXLABS, SMARTLIVE, DBL},
  pages = {536--544},
  }

• ---

  Castelli, N., Stevens, G., Jakobi, T. & Schönau, N. (2014)Switch off the light in the living room, please! –Making eco-feedback meaningful through room context information

  Proceedings of the 28th EnviroInfo 2014 Conference. Oldenburg, Publisher: BIS-Verlag, Pages: 589–596
  [BibTeX] [Abstract] [Download PDF]

  Residential and commercial buildings are responsible for about 40\% of the EU’s total energy co n- sumption. However, conscious, sustainable use of this limited resource is hampered by a lack of visibility and materiality of consumption. One of the major challenges is enabling consumers to make informed decisions about energy consumption, thereby supporting the shift to sustainable a c- tions. With the use of Energy-Management-Systems it is possible to save up to 15\%. In recent years, design approaches have greatly diversified, but with the emergence of ubiquitous- and co n- text-aware computing, energy feedback solutions can be enriched with additional context info r- mation. In this study, we present the concept “ room as a context ” for eco-feedback systems. We investigate opportunities of making current state- of-the-art energy visualizations more meaningful and demonstrate which new forms of visualizations can be created with this additional info r- mation. Furthermore, we developed a prototype for android-based tablets, which includes some of the presented features to study our design concepts in the wild.

  @inproceedings{castelli_switch_2014,
  address = {Oldenburg},
  title = {Switch off the light in the living room, please! –{Making} eco-feedback meaningful through room context information},
  url = {http://enviroinfo.eu/sites/default/files/pdfs/vol8514/0589.pdf},
  abstract = {Residential and commercial buildings are responsible for about 40\% of the EU's total energy co n- sumption. However, conscious, sustainable use of this limited resource is hampered by a lack of visibility and materiality of consumption. One of the major challenges is enabling consumers to make informed decisions about energy consumption, thereby supporting the shift to sustainable a c- tions. With the use of Energy-Management-Systems it is possible to save up to 15\%. In recent years, design approaches have greatly diversified, but with the emergence of ubiquitous- and co n- text-aware computing, energy feedback solutions can be enriched with additional context info r- mation. In this study, we present the concept “ room as a context ” for eco-feedback systems. We investigate opportunities of making current state- of-the-art energy visualizations more meaningful and demonstrate which new forms of visualizations can be created with this additional info r- mation. Furthermore, we developed a prototype for android-based tablets, which includes some of the presented features to study our design concepts in the wild.},
  booktitle = {Proceedings of the 28th {EnviroInfo} 2014 {Conference}},
  publisher = {BIS-Verlag},
  author = {Castelli, Nico and Stevens, Gunnar and Jakobi, Timo and Schönau, Niko},
  editor = {Jorge Marx Gómez Michael Sonnenschein, Ute Vogel Andreas Winter Barbara Rapp Nils Giesen},
  year = {2014},
  keywords = {PRAXLABS, SMARTLIVE, DBL, LivingLabEnergy},
  pages = {589--596},
  }

• ---

  Jacobi, T., Stevens, G. & Schwartz, T. (2014)Verhaltensbasiertes Energiesparen am Arbeitsplatz: Eine vergleichende Studie

  Proceedings of Multikonferenz Wirtschaftsinformatik 2014 (MKWI 2014). Paderborn, Publisher: Universitätsverlag Paderborn, Pages: 76–88
  [BibTeX]

  @inproceedings{jacobi_verhaltensbasiertes_2014,
  address = {Paderborn},
  title = {Verhaltensbasiertes {Energiesparen} am {Arbeitsplatz}: {Eine} vergleichende {Studie}},
  booktitle = {Proceedings of {Multikonferenz} {Wirtschaftsinformatik} 2014 ({MKWI} 2014)},
  publisher = {Universitätsverlag Paderborn},
  author = {Jacobi, Timo and Stevens, Gunnar and Schwartz, Tobias},
  editor = {Kundisch, Dennis and Suhl, Leena and Beckmann, Lars},
  year = {2014},
  pages = {76--88},
  }

• ---

  Schwartz, T., Stevens, G., Jakobi, T., Denef, S., Ramirez, L., Wulf, V. & Randall, D. (2014)What People Do with Consumption Feedback: A Long-Term Living Lab Study of a Home Energy Management System

  IN Interacting with Computers, Vol. 27, Pages: 1–26 doi:10.1093/iwc/iwu009
  [BibTeX] [Abstract] [Download PDF]

  One of the great societal challenges that we face today concerns the move to more sustainable patterns of energy consumption, reflecting the need to balance both individual consumer choice and societal demands. In order for this ‘energy turnaround‘ to take place, however, reducing residential energy consumption must go beyond using energy-efficient devices: More sustainable behaviour and lifestyles are essential parts of future ‘energy aware‘ living. Addressing this issue from an HCI perspective, this paper presents the results of a 3-year research project dealing with the co-design and appropriation of a Home Energy Management System (HEMS) that has been rolled out in a living lab setting with seven households for a period of 18 months. Our HEMS is inspired by feedback systems in Sustainable Interaction Design and allows the monitoring of energy consumption in real-time. In contrast to existing research mainly focusing on how technology can persuade people to consume less energy (‘what technology does to people‘), our study focuses on the appropriation of energy feedback systems (‘what people do with technology‘) and how newly developed practices can become a resource for future technology design. Therefore, we deliberately followed an open research design. In keeping with this approach, our study uncovers various responses, practices and obstacles of HEMS use. We show that HEMS use is characterized by a number of different features. Recognizing the distinctive patterns of technology use in the different households and the evolutionary character of that use within the households, we conclude with a discussion of these patterns in relation to existing research and their meaning for the design of future HEMSs.

  @article{schwartz_what_2014,
  title = {What {People} {Do} with {Consumption} {Feedback}: {A} {Long}-{Term} {Living} {Lab} {Study} of a {Home} {Energy} {Management} {System}},
  volume = {27},
  issn = {0953-5438, 1873-7951},
  url = {http://iwc.oxfordjournals.org/content/early/2014/04/05/iwc.iwu009 https://doi.org/10.1093/iwc/iwu009},
  doi = {10.1093/iwc/iwu009},
  abstract = {One of the great societal challenges that we face today concerns the move to more sustainable patterns of energy consumption, reflecting the need to balance both individual consumer choice and societal demands. In order for this ‘energy turnaround' to take place, however, reducing residential energy consumption must go beyond using energy-efficient devices: More sustainable behaviour and lifestyles are essential parts of future ‘energy aware' living. Addressing this issue from an HCI perspective, this paper presents the results of a 3-year research project dealing with the co-design and appropriation of a Home Energy Management System (HEMS) that has been rolled out in a living lab setting with seven households for a period of 18 months. Our HEMS is inspired by feedback systems in Sustainable Interaction Design and allows the monitoring of energy consumption in real-time. In contrast to existing research mainly focusing on how technology can persuade people to consume less energy (‘what technology does to people'), our study focuses on the appropriation of energy feedback systems (‘what people do with technology') and how newly developed practices can become a resource for future technology design. Therefore, we deliberately followed an open research design. In keeping with this approach, our study uncovers various responses, practices and obstacles of HEMS use. We show that HEMS use is characterized by a number of different features. Recognizing the distinctive patterns of technology use in the different households and the evolutionary character of that use within the households, we conclude with a discussion of these patterns in relation to existing research and their meaning for the design of future HEMSs.},
  number = {6},
  journal = {Interacting with Computers},
  author = {Schwartz, Tobias and Stevens, Gunnar and Jakobi, Timo and Denef, Sebastian and Ramirez, Leonardo and Wulf, Volker and Randall, Dave},
  year = {2014},
  keywords = {sustainability, design, user studies, PRAXLABS, SMARTLIVE, DBL, editorial board member, empirical studies in interaction, interacting with computers},
  pages = {1--26},
  annote = {Publisher: Oxford University Press},
  }

2013

• ---

  Schwartz, T., Stevens, G., Ramirez, L. & Wulf, V. (2013)Uncovering practices of making energy consumption accountable

  IN ACM Transactions on Computer-Human Interaction (ToCHI), Vol. 20, Pages: 1–30 doi:10.1145/2463579.2463583
  [BibTeX] [Download PDF]

  @article{schwartz_uncovering_2013-1,
  title = {Uncovering practices of making energy consumption accountable},
  volume = {20},
  issn = {10730516},
  url = {http://dl.acm.org/citation.cfm?doid=2463579.2463583},
  doi = {10.1145/2463579.2463583},
  number = {2},
  journal = {ACM Transactions on Computer-Human Interaction (ToCHI)},
  author = {Schwartz, Tobias and Stevens, Gunnar and Ramirez, Leonardo and Wulf, Volker},
  month = may,
  year = {2013},
  keywords = {A-Paper},
  pages = {1--30},
  }

• ---

  Jakobi, T. & Stevens, G. (2013)Always beta: cooperative design in the smart home

  Pervasive and Ubiquitous Computing, Adjunct Publication., Publisher: ACM, Pages: 837–844
  [BibTeX]

  @inproceedings{jakobi_always_2013,
  title = {Always beta: cooperative design in the smart home},
  booktitle = {Pervasive and {Ubiquitous} {Computing}, {Adjunct} {Publication}},
  publisher = {ACM},
  author = {Jakobi, Timo and Stevens, Gunnar},
  year = {2013},
  keywords = {PRAXLABS, SMARTLIVE},
  pages = {837--844},
  }

• ---

  Schwartz, T., Stevens, G., Ramirez, L. & Wulf, V. (2013)Uncovering Practices of Making Energy Consumption Accountable: A Phenomenological Inquiry

  IN ACM Transactions on Computer-Human Interaction (ToCHI), Vol. 20, Pages: Art. No. 12 doi:10.1145/2463579.2463583
  [BibTeX] [Download PDF]

  @article{schwartz_uncovering_2013,
  title = {Uncovering {Practices} of {Making} {Energy} {Consumption} {Accountable}: {A} {Phenomenological} {Inquiry}},
  volume = {20},
  issn = {1073-0516},
  url = {http://doi.acm.org/10.1145/2463579.2463583},
  doi = {10.1145/2463579.2463583},
  number = {2},
  journal = {ACM Transactions on Computer-Human Interaction (ToCHI)},
  author = {Schwartz, Tobias and Stevens, Gunnar and Ramirez, Leonardo and Wulf, Volker},
  year = {2013},
  keywords = {sustainability, PRAXLABS, SMARTLIVE, Energy, phenomenology},
  pages = {Art. No. 12},
  annote = {Place: New York, NY, USA Publisher: ACM},
  }

• ---

  Stevens, G., Boden, A. & von Rekowski, T. (2013)Objects-to-think-with-together: Rethinking Papert’s fusion of design and use in the age of online sociability

  Proceedings of the International Symposium on End User Development. Copenhagen, Denmark
  [BibTeX]

  @inproceedings{stevens_objects--think--together_2013,
  address = {Copenhagen, Denmark},
  title = {Objects-to-think-with-together: {Rethinking} {Papert}'s fusion of design and use in the age of online sociability},
  booktitle = {Proceedings of the {International} {Symposium} on {End} {User} {Development}},
  author = {Stevens, Gunnar and Boden, Alexander and von Rekowski, Thomas},
  year = {2013},
  }

• ---

  Rohde, M., Brödner, P., Stevens, G. & Wulf, V. (2013)Adjusting the Paradigmatic Shift: IS Design as Intervention in Social Practice

  IN International Reports on Socio-Informatics (IRSI), Vol. 10, Pages: 1861–4280
  [BibTeX]

  @article{rohde_adjusting_2013,
  title = {Adjusting the {Paradigmatic} {Shift}: {IS} {Design} as {Intervention} in {Social} {Practice}},
  volume = {10},
  number = {1},
  journal = {International Reports on Socio-Informatics (IRSI)},
  author = {Rohde, Markus and Brödner, Peter and Stevens, Gunnar and Wulf, Volker},
  year = {2013},
  pages = {1861--4280},
  }

• ---

  Avram, G., Boden, A., Posch, I. & Stevens, G. (2013)Do-It-Yourself Sustainable Living : Op- portunities and challenges for DIY communities

  IN Workshop on Post-Sustainability (co-located with CHI 2013)
  [BibTeX]

  @article{avram_-it-yourself_2013,
  title = {Do-{It}-{Yourself} {Sustainable} {Living} : {Op}- portunities and challenges for {DIY} communities},
  journal = {Workshop on Post-Sustainability (co-located with CHI 2013)},
  author = {Avram, Gabriela and Boden, Alexander and Posch, Irene and Stevens, Gunnar},
  year = {2013},
  annote = {ISBN: 9781450319522},
  }

• ---

  Meurer, J., Stein, M. & Stevens, G. (2013)Living Labs zur Gestaltung innovativer Mobilitätskonzepte für ältere Menschen

  Mensch & Computer: Workshopband., Publisher: Oldenbourg Verlag, Pages: 95–102
  [BibTeX]

  @inproceedings{meurer_living_2013,
  title = {Living {Labs} zur {Gestaltung} innovativer {Mobilitätskonzepte} für ältere {Menschen}},
  booktitle = {Mensch \& {Computer}: {Workshopband}},
  publisher = {Oldenbourg Verlag},
  author = {Meurer, Johanna and Stein, Martin and Stevens, Gunnar},
  year = {2013},
  keywords = {PRAXLABS, s-mobil},
  pages = {95--102},
  }

• ---

  Schwartz, T., Denef, S., Stevens, G., Ramirez, L. & Wulf, V. (2013)Cultivating Energy Literacy: Results from a Longitudinal Living Lab Study of a Home Energy Management System

  Proceedings of CHI ’13. New York, NY, USA, Publisher: ACM, Pages: 1193–1202 doi:10.1145/2470654.2466154
  [BibTeX] [Abstract] [Download PDF]

  This paper presents results of a three-year research project focused on the emplacement of Home Energy Management Systems (HEMS) in a living lab setting with seven households. The HEMS used in this study allowed householders to monitor energy consumption both in realtime and in retrospective on the TV and on mobile devices. Contrasting with existing research focused on how technology persuades people to consume less energy, our study uses a grounded approach to analyze HEMS emplacement. As an important result, we present here the issue of ‚energy literacy‘. Our study reveals that, by using HEMS, participants became increasingly literate in understanding domestic electricity consumption. We discuss the role HEMS played in that process and how the acquired literacy changed energy consumption patterns. We conclude that literacy in energy consumption has value on its own and explain how eco feedback system designs can benefit from this understanding. Copyright © 2013 ACM.

  @inproceedings{schwartz_cultivating_2013,
  address = {New York, NY, USA},
  series = {{CHI} '13},
  title = {Cultivating {Energy} {Literacy}: {Results} from a {Longitudinal} {Living} {Lab} {Study} of a {Home} {Energy} {Management} {System}},
  isbn = {978-1-4503-1899-0},
  url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84877999779&partnerID=40&md5=0f531b7b46008d99297158e1951b58a2 http://doi.acm.org/10.1145/2470654.2466154},
  doi = {10.1145/2470654.2466154},
  abstract = {This paper presents results of a three-year research project focused on the emplacement of Home Energy Management Systems (HEMS) in a living lab setting with seven households. The HEMS used in this study allowed householders to monitor energy consumption both in realtime and in retrospective on the TV and on mobile devices. Contrasting with existing research focused on how technology persuades people to consume less energy, our study uses a grounded approach to analyze HEMS emplacement. As an important result, we present here the issue of 'energy literacy'. Our study reveals that, by using HEMS, participants became increasingly literate in understanding domestic electricity consumption. We discuss the role HEMS played in that process and how the acquired literacy changed energy consumption patterns. We conclude that literacy in energy consumption has value on its own and explain how eco feedback system designs can benefit from this understanding. Copyright © 2013 ACM.},
  booktitle = {Proceedings of {CHI} '13},
  publisher = {ACM},
  author = {Schwartz, Tobias and Denef, Sebastian and Stevens, Gunnar and Ramirez, Leonardo and Wulf, Volker},
  year = {2013},
  keywords = {a-paper, PRAXLABS, Energy literacy, Energy monitoring, HEMS},
  pages = {1193--1202},
  }

• ---

  Ogonowski, C., Ley, B. & Stevens, G. (2013)Challenges of Long-Term User Involvement in a Living Lab

  CHI ’13 Workshop on Methods for Studying Technology in the Home., Pages: 1–4
  [BibTeX]

  @inproceedings{ogonowski_challenges_2013,
  title = {Challenges of {Long}-{Term} {User} {Involvement} in a {Living} {Lab}},
  isbn = {978-1-4503-1899-0},
  booktitle = {{CHI} '13 {Workshop} on {Methods} for {Studying} {Technology} in the {Home}},
  author = {Ogonowski, Corinna and Ley, Benedikt and Stevens, Gunnar},
  year = {2013},
  keywords = {a-paper, Living Lab, PRAXLABS, LivingLabEnergy, domestic domain, long-term study},
  pages = {1--4},
  }

2012

• ---

  Stevens, G., Meurer, J., Nett, B. & Schwartz, T. (2012)Kompetenzen offener Innovationsentwicklung

  IN consumers@work: Zum neuen Verhältnis von Unternehmen und Usern im Web 2.0
  [BibTeX]

  @incollection{stevens_kompetenzen_2012-1,
  title = {Kompetenzen offener {Innovationsentwicklung}},
  isbn = {978-3-593-39773-3},
  language = {de},
  booktitle = {consumers@work: {Zum} neuen {Verhältnis} von {Unternehmen} und {Usern} im {Web} 2.0},
  publisher = {Campus Verlag},
  author = {Stevens, Gunnar and Meurer, Johanna and Nett, Bernhard and Schwartz, Tobias},
  month = sep,
  year = {2012},
  note = {Google-Books-ID: PMmGK0NVfj8C},
  keywords = {Social Science / Sociology / General},
  pages = {76--90},
  }

• ---

  Draxler, S., Stevens, G., Stein, M., Boden, A. & Randall, D. (2012)Supporting the social context of technology appropriation

  Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems – CHI ’12. New York, New York, USA, Publisher: ACM Press, Pages: 2835–2844 doi:10.1145/2207676.2208687
  [BibTeX] [Download PDF]

  @inproceedings{draxler_supporting_2012,
  address = {New York, New York, USA},
  title = {Supporting the social context of technology appropriation},
  isbn = {978-1-4503-1015-4},
  url = {http://dl.acm.org/citation.cfm?doid=2207676.2208687},
  doi = {10.1145/2207676.2208687},
  booktitle = {Proceedings of the 2012 {ACM} annual conference on {Human} {Factors} in {Computing} {Systems} - {CHI} '12},
  publisher = {ACM Press},
  author = {Draxler, Sebastian and Stevens, Gunnar and Stein, Martin and Boden, Alexander and Randall, David},
  year = {2012},
  keywords = {A-Paper},
  pages = {2835--2844},
  }

• ---

  Boden, A., Roßwog, F. & Stevens, G. (2012)Leichtgewichtige Displays für verteilte Softwareteams

  IN Mensch & Computer: Workshopband, Pages: 433–438
  [BibTeX] [Abstract]

  Dieser Beitrag untersucht die Nutzung von iPads als leichtgewichtige Public Displays zur Unterstützung von spezifischen Problemen bei der Zusammenarbeit in verteilten Softwareentwicklungsteams. Das Design basiert auf empirischen Studien in kleinen Softwarefirmen und zielt auf eine integrierte Darstellung von formalen und informellen Aspekten der Teamkoordination in einem gemeinsamen Arbeitskontext. Dazu werden auf einem Display gesammelte Nachrichten über relevante Vorgänge im Team wie auf einem Schwarzen Brett dargestellt. Die Nachrichten werden dabei entweder von Benutzern erstellt oder automatisch per RSS-Feed von Webseiten oder Informationssystemen erzeugt und sollen als „Tickets To Talk“ die Mitarbeiter zum Wissensaustausch anregen und die gegenseitige Awareness steigern. In diesem Beitrag stellen wir unser empirisch informiertes Design und erste Ergebnisse einer evaluativen Feldstudie vor.

  @article{boden_leichtgewichtige_2012,
  title = {Leichtgewichtige {Displays} für verteilte {Softwareteams}},
  abstract = {Dieser Beitrag untersucht die Nutzung von iPads als leichtgewichtige Public Displays zur Unterstützung von spezifischen Problemen bei der Zusammenarbeit in verteilten Softwareentwicklungsteams. Das Design basiert auf empirischen Studien in kleinen Softwarefirmen und zielt auf eine integrierte Darstellung von formalen und informellen Aspekten der Teamkoordination in einem gemeinsamen Arbeitskontext. Dazu werden auf einem Display gesammelte Nachrichten über relevante Vorgänge im Team wie auf einem Schwarzen Brett dargestellt. Die Nachrichten werden dabei entweder von Benutzern erstellt oder automatisch per RSS-Feed von Webseiten oder Informationssystemen erzeugt und sollen als „Tickets To Talk“ die Mitarbeiter zum Wissensaustausch anregen und die gegenseitige Awareness steigern. In diesem Beitrag stellen wir unser empirisch informiertes Design und erste Ergebnisse einer evaluativen Feldstudie vor.},
  journal = {Mensch \& Computer: Workshopband},
  author = {Boden, Alexander and Roßwog, Frank and Stevens, Gunnar},
  year = {2012},
  pages = {433--438},
  }

• ---

  Stevens, G., Meurer, J., Nett, B. & Schwartz, T. (2012)Kompetenzen offener Innovationsentwicklung

  IN Consumers@work : zum neuen Verhältnis von Unternehmen und Usern im Web 2.0.
  [BibTeX]

  @incollection{stevens_kompetenzen_2012,
  title = {Kompetenzen offener {Innovationsentwicklung}},
  booktitle = {Consumers@work : zum neuen {Verhältnis} von {Unternehmen} und {Usern} im {Web} 2.0.},
  publisher = {Campus Verlag, Frankfurt am Main},
  author = {Stevens, Gunnar and Meurer, Johanna and Nett, Bernhard and Schwartz, Tobias},
  year = {2012},
  pages = {76--87},
  }

2011

• ---

  Draxler, S., Jung, A., Boden, A. & Stevens, G. (2011)Workplace Warriors : Identifying Team Practices of Appropriation in Software Ecosystems

  Chase’11. Waikiki, Honululu, HI, USA, Publisher: ACM, Pages: 57–60 doi:10.1145/1984642.1984656
  [BibTeX] [Abstract]

  Since the 1990s, the forms of production, distribution, configuration and appropriation of software have changed fundamentally. Nowadays, software is often embedded in software ecosystems, i.e. in complex interrelations between different stakeholders who are connected by a shared technological platform. In our paper, we investigate how small software teams deal with the challenges of appropriating and configuring software in the Eclipse ecosystem for their daily work. We empirically identify three different approaches for dealing with appropriation in software ecosystems which are represented by the “ideal types” lone warrior, centralized organization, and collegial collaboration. Based on a discussion of these strategies and the underlying appropriation practices we found in the field, we suggest theoretical and practical implications for supporting appropriation in software ecosystems.

  @inproceedings{draxler_workplace_2011,
  address = {Waikiki, Honululu, HI, USA},
  title = {Workplace {Warriors} : {Identifying} {Team} {Practices} of {Appropriation} in {Software} {Ecosystems}},
  isbn = {978-1-4503-0576-1},
  doi = {10.1145/1984642.1984656},
  abstract = {Since the 1990s, the forms of production, distribution, configuration and appropriation of software have changed fundamentally. Nowadays, software is often embedded in software ecosystems, i.e. in complex interrelations between different stakeholders who are connected by a shared technological platform. In our paper, we investigate how small software teams deal with the challenges of appropriating and configuring software in the Eclipse ecosystem for their daily work. We empirically identify three different approaches for dealing with appropriation in software ecosystems which are represented by the “ideal types” lone warrior, centralized organization, and collegial collaboration. Based on a discussion of these strategies and the underlying appropriation practices we found in the field, we suggest theoretical and practical implications for supporting appropriation in software ecosystems.},
  booktitle = {Chase'11},
  publisher = {ACM},
  author = {Draxler, Sebastian and Jung, Adrian and Boden, Alexander and Stevens, Gunnar},
  year = {2011},
  keywords = {appropriation, software, software engineering, tailorability},
  pages = {57--60},
  annote = {ISSN: 02705257},
  }

• ---

  Schwartz, T., Betz, M. M. & Stevens, G. (2011)Smart Metering für Büroarbeitsplätze

  IN HMD Theorie und Praxis der Wirtschaftinformatik, Vol. 278, Pages: 104–113
  [BibTeX]

  @article{schwartz_smart_2011,
  title = {Smart {Metering} für {Büroarbeitsplätze}},
  volume = {278},
  issn = {0723-5208},
  number = {April},
  journal = {HMD Theorie und Praxis der Wirtschaftinformatik},
  author = {Schwartz, Tobias and Betz, Mathias Matthias and Stevens, Gunnar},
  year = {2011},
  keywords = {PRAXLABS, SMARTLIVE},
  pages = {104--113},
  }

• ---

  Wulf, V., Rohde, M., Pipek, V. & Stevens, G. (2011)Engaging with Practices: Design Case Studies as a Research Framework in CSCW

  Proceedings of the Conference on Computer Supported Cooperative Work (CSCW). Hangzhou, China, Publisher: ACM Press, Pages: 505–512
  [BibTeX]

  @inproceedings{wulf_engaging_2011,
  address = {Hangzhou, China},
  title = {Engaging with {Practices}: {Design} {Case} {Studies} as a {Research} {Framework} in {CSCW}},
  booktitle = {Proceedings of the {Conference} on {Computer} {Supported} {Cooperative} {Work} ({CSCW})},
  publisher = {ACM Press},
  author = {Wulf, Volker and Rohde, Markus and Pipek, Volkmar and Stevens, Gunnar},
  year = {2011},
  keywords = {CSCW, PRAXLABS, DBL, CONTici},
  pages = {505--512},
  annote = {Backup Publisher: ACM},
  }

• ---

  Draxler, S., Jung, A. & Stevens, G. (2011)Managing Software Portfolios: A Comparative Study

  End-User Development. Third International Symposium, IS-EUD 2011, Torre Canne, Italy, June 7-10, 2011, Proceedings. Torre Canne, Italy, Publisher: Springer, Pages: 337–342
  [BibTeX]

  @inproceedings{draxler_managing_2011,
  address = {Torre Canne, Italy},
  title = {Managing {Software} {Portfolios}: {A} {Comparative} {Study}},
  booktitle = {End-{User} {Development}. {Third} {International} {Symposium}, {IS}-{EUD} 2011, {Torre} {Canne}, {Italy}, {June} 7-10, 2011, {Proceedings}},
  publisher = {Springer},
  author = {Draxler, Sebastian and Jung, Adrian and Stevens, Gunnar},
  year = {2011},
  keywords = {awareness, collaborative tailoring, eud, software ecosystems},
  pages = {337--342},
  }

• ---

  Jakobi, T., Stevens, G. & Schwartz, T. (2011)EUD @ Smart Homes Smart refurbishment of rented apartments to improve energy efficiency

  IN IS-EUD’11 Workshop on EUD for Supporting Sustainability in Maker Communities, Pages: 1–8
  [BibTeX]

  @article{jakobi_eud_2011,
  title = {{EUD} @ {Smart} {Homes} {Smart} refurbishment of rented apartments to improve energy efficiency},
  journal = {IS-EUD'11 Workshop on EUD for Supporting Sustainability in Maker Communities},
  author = {Jakobi, Timo and Stevens, Gunnar and Schwartz, Tobias},
  year = {2011},
  keywords = {smart home, SMARTLIVE, DBL, diy, end user development, home energy management systems, smart metering, sustainable interaction design},
  pages = {1--8},
  }

• ---

  Yetim, F., Stevens, G., Draxler, S. & Wulf, V. (2011)Fostering Continuous User Participation by Embedding a Communication Support Tool in User Interfaces

  IN AIS Transactions on Human-Computer Interaction, Vol. 4, Pages: 153–168 doi:10.5121/ijfcst.2014.4403
  [BibTeX] [Abstract]

  News reports of Internet-based security breaches, identity theft, fraud, and other dangers may increase the perceived risk and decrease the perceived benefits of using electronic services (or e-services). We examine whether interactivity serves as a means to diminish the perceived risks and increase the perceived benefits of using e-services. To examine interactivity‟s influence on consumers‟ perceptions, we conducted a laboratory experiment using a simulated web-based, online payment system. When compared to a non-interactive preview of an online payment system, we found that consumers who used an interactive e-service simulation reported higher perceived involvement and authenticity as well as higher intangibility and risks of e-services. Further, we found that interactivity moderated relationships such that consumers were more likely to report higher intentions to use e- services. The paper concludes with implications for research and practice

  @article{yetim_fostering_2011,
  title = {Fostering {Continuous} {User} {Participation} by {Embedding} a {Communication} {Support} {Tool} in {User} {Interfaces}},
  volume = {4},
  issn = {19443900},
  doi = {10.5121/ijfcst.2014.4403},
  abstract = {News reports of Internet-based security breaches, identity theft, fraud, and other dangers may increase the perceived risk and decrease the perceived benefits of using electronic services (or e-services). We examine whether interactivity serves as a means to diminish the perceived risks and increase the perceived benefits of using e-services. To examine interactivity‟s influence on consumers‟ perceptions, we conducted a laboratory experiment using a simulated web-based, online payment system. When compared to a non-interactive preview of an online payment system, we found that consumers who used an interactive e-service simulation reported higher perceived involvement and authenticity as well as higher intangibility and risks of e-services. Further, we found that interactivity moderated relationships such that consumers were more likely to report higher intentions to use e- services. The paper concludes with implications for research and practice},
  number = {2},
  journal = {AIS Transactions on Human-Computer Interaction},
  author = {Yetim, Fahri and Stevens, Gunnar and Draxler, Sebastian and Wulf, Volker},
  year = {2011},
  keywords = {A-Paper},
  pages = {153--168},
  }

• ---

  Meurer, J., Nett, B. & Stevens, G. (2011)Die Bedeutung von geistiger Offenheit und Kontingenz als unternehmerische Herausforderung zur Generierung von Nutzerinnovation

  Workshop “Arbeit und Betrieb im Web 2.0 – Zum neuen Verhältnis zwischen Betrieben und Usern” 8.-9. September 2011., Publisher: TU Chemnitz, Pages: 6
  [BibTeX]

  @inproceedings{meurer_bedeutung_2011,
  title = {Die {Bedeutung} von geistiger {Offenheit} und {Kontingenz} als unternehmerische {Herausforderung} zur {Generierung} von {Nutzerinnovation}},
  booktitle = {Workshop “{Arbeit} und {Betrieb} im {Web} 2.0 – {Zum} neuen {Verhältnis} zwischen {Betrieben} und {Usern}” 8.-9. {September} 2011},
  publisher = {TU Chemnitz},
  author = {Meurer, Johanna and Nett, Bernhard and Stevens, Gunnar},
  year = {2011},
  pages = {6},
  }

• ---

  Pipek, V. & Stevens, G. (2011)Guessing from the color of smoke: What Fukushima tells us about Infor-mation Infrastructure Breakdowns an IT development methodologies

  IN ZiF Nachrichten
  [BibTeX]

  @article{pipek_guessing_2011,
  title = {Guessing from the color of smoke: {What} {Fukushima} tells us about {Infor}-mation {Infrastructure} {Breakdowns} an {IT} development methodologies},
  number = {04},
  journal = {ZiF Nachrichten},
  author = {Pipek, Volkmar and Stevens, Gunnar},
  year = {2011},
  keywords = {CSCW},
  }

• ---

  Chi, E. H., Czerwinski, M., Millen, D. R., Randall, D., Stevens, G., Wulf, V. & Zimmermann, J. (2011)Transferability of Research Findings: Context-Dependent or Model-Driven

  IN Proc. ACM Conf. on Human Factors in Computing Systems (CHI), Pages: 651–654 doi:10.1145/1979742.1979494
  [BibTeX] [Abstract]

  In this panel we will explore two distinct approaches to reach transferability currently prevailing in the HCI community. We will discuss epistemological differences and the strengths and criticisms of each approach. Importantly, we will discuss the implications for HCI research practice given this diversity of methodological approaches.

  @article{chi_transferability_2011,
  title = {Transferability of {Research} {Findings}: {Context}-{Dependent} or {Model}-{Driven}},
  doi = {10.1145/1979742.1979494},
  abstract = {In this panel we will explore two distinct approaches to reach transferability currently prevailing in the HCI community. We will discuss epistemological differences and the strengths and criticisms of each approach. Importantly, we will discuss the implications for HCI research practice given this diversity of methodological approaches.},
  journal = {Proc. ACM Conf. on Human Factors in Computing Systems (CHI)},
  author = {Chi, Ed H and Czerwinski, Mary and Millen, David R and Randall, Dave and Stevens, Gunnar and Wulf, Volker and Zimmermann, John},
  year = {2011},
  keywords = {A-Paper, practice, epistemology, hci methods, information interfaces and presentation, models},
  pages = {651--654},
  annote = {ISBN: 9781450302685},
  }

2010

• ---

  Stevens, G. (2010)Understanding and designing appropriation infrastructures: artifacts as boundary objects in the continuous software development

  [BibTeX] [Download PDF]

  @book{stevens_understanding_2010,
  title = {Understanding and designing appropriation infrastructures: artifacts as boundary objects in the continuous software development},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2016/11/diss_stevens_understanding-and-designing-appropriation-infrastructures_2010.pdf},
  author = {Stevens, Gunnar},
  year = {2010},
  keywords = {Dissertation},
  }

• ---

  Schwartz, T., Betz, M., Ramirez, L. & Stevens, G. (2010)Sustainable energy practices at work: understanding the role of workers in energy conservation

  Proceedings of the Nordic Conference on Human-Computer Interaction., Pages: 452–462
  [BibTeX] [Download PDF]

  @inproceedings{schwartz_sustainable_2010,
  title = {Sustainable energy practices at work: understanding the role of workers in energy conservation},
  shorttitle = {Sustainable energy practices at work},
  url = {http://dl.acm.org/citation.cfm?id=1868966},
  booktitle = {Proceedings of the {Nordic} {Conference} on {Human}-{Computer} {Interaction}},
  author = {Schwartz, Tobias and Betz, Matthias and Ramirez, Leonardo and Stevens, Gunnar},
  year = {2010},
  keywords = {PRAXLABS},
  pages = {452--462},
  }

• ---

  Budweg, S., Draxler, S., Lohmann, S., Asarnusch, R. & Stevens, G. (2010)Open Design Spaces – – Socially Crafting Interactive Experiences

  IN \textbackslashtextbackslashldots Designing Interactive \textbackslashtextbackslashldots, Vol. 7, Pages: 5–7 doi:10.1145/1858171.1858261
  [BibTeX] [Abstract] [Download PDF]

  Engaging end-users and user communities to take an active part in the co-creation, evolution, and appropriation of modern, interactive systems has become an increasingly important issue over the last years. Bringing together existing research and experiences as well as new challenges such as long-term, large-scale, or highly distributed stakeholders has led to the notion of Open Design Spaces (ODS) to frame and reflect current developments of distributed co-design. Several, formerly often separated strands of research covering different aspects of these challenges have emerged and led to a growing community of researchers and practitioners building on concepts such as Participatory Design, Meta-Design, and End-User Development. Building on two successful predecessors on the topic with more than 50 international researchers and practitioners, the workshop at DIS 2010 focuses particularly on social aspects and community co-creation in Open Design Spaces. © 2010 ACM.

  @article{budweg_open_2010,
  title = {Open {Design} {Spaces} – – {Socially} {Crafting} {Interactive} {Experiences}},
  volume = {7},
  url = {http://dl.acm.org/citation.cfm?id=1858261},
  doi = {10.1145/1858171.1858261},
  abstract = {Engaging end-users and user communities to take an active part in the co-creation, evolution, and appropriation of modern, interactive systems has become an increasingly important issue over the last years. Bringing together existing research and experiences as well as new challenges such as long-term, large-scale, or highly distributed stakeholders has led to the notion of Open Design Spaces (ODS) to frame and reflect current developments of distributed co-design. Several, formerly often separated strands of research covering different aspects of these challenges have emerged and led to a growing community of researchers and practitioners building on concepts such as Participatory Design, Meta-Design, and End-User Development. Building on two successful predecessors on the topic with more than 50 international researchers and practitioners, the workshop at DIS 2010 focuses particularly on social aspects and community co-creation in Open Design Spaces. © 2010 ACM.},
  number = {2},
  journal = {{\textbackslash}textbackslashldots Designing Interactive {\textbackslash}textbackslashldots},
  author = {Budweg, Steffen and Draxler, Sebastian and Lohmann, Steffen and Asarnusch, Rashid and Stevens, Gunnar},
  year = {2010},
  pages = {5--7},
  annote = {ISBN: 9781450301039},
  }

• ---

  Draxler, S., Sander, H. & Stevens, G. (2010)Provisioning 2 . 0 : Diffusion kleinteiliger Software in sozialen Netzwerken

  IN Multikonferenz Wirtschaftsinformatik (MKWI), Pages: 665–677
  [BibTeX]

  @article{draxler_provisioning_2010,
  title = {Provisioning 2 . 0 : {Diffusion} kleinteiliger {Software} in sozialen {Netzwerken}},
  journal = {Multikonferenz Wirtschaftsinformatik (MKWI)},
  author = {Draxler, Sebastian and Sander, Hendrik and Stevens, Gunnar},
  year = {2010},
  pages = {665--677},
  annote = {ISBN: 3941875310},
  }

• ---

  Stevens, G., Pipek, V. & Wulf, V. (2010)Appropriation Infrastructure: Mediating Appropriation and Production Work

  IN Journal of Organizational and End User Computing (JOEUC), Vol. 22, Pages: 58–81
  [BibTeX]

  @article{stevens_appropriation_2010,
  title = {Appropriation {Infrastructure}: {Mediating} {Appropriation} and {Production} {Work}},
  volume = {22},
  number = {2},
  journal = {Journal of Organizational and End User Computing (JOEUC)},
  author = {Stevens, Gunnar and Pipek, Volkmar and Wulf, Volker},
  year = {2010},
  keywords = {CSCW, CONTici},
  pages = {58--81},
  }

• ---

  Brödner, P., Rohde, M., Stevens, G. & Wulf, V. (2010)Perspektivwechsel auf IS – Von der Systemgestaltung zur Strukturation sozialer Praxis

  IN Proceedings der 10. fachübergreifenden Konferenz Mensch und Computer (MuC’10): Interaktive Kulturen, Pages: 149–158
  [BibTeX] [Abstract]

  Der Beitrag befasst sich mit der theoretischen Fundierung der zweckmäßigen Gestaltung von Informa- tionssystemen. Er trägt zu einem internationalen Diskurs bei, der durch eine grundlegende Arbeit von Hevner et al. (2004) angestoßen wurde. Allerdings wirft deren Perspektive begriffliche und theoreti- sche Schwierigkeiten auf, die in einer eingeschränkten Rezeption pragmatischer Weltsicht wurzeln, auf die sich die Autoren berufen, und die ein unzureichendes Verständnis der Gestaltungsaufgabe zur Folge haben. Abhilfe lässt sich durch eine Erweiterung des theoretischen Rahmens gewinnen, der nicht nur die zu gestaltenden IT-Systeme, sondern vor allem auch deren Wechselwirkungen mit den sozialen Praktiken, die sie modellieren und im Gebrauch zugleich strukturieren, in den Blick nimmt. Diese ontologische und epistemologische Öffnung der Perspektive der Gestaltungswissenschaft hat methodi- sche Konsequenzen, die exemplarisch für die kanonische Aktionsforschung und Unternehmens- Ethnografie als aussichtsreichen neuen Vorgehensweisen erläutert werden. 1

  @article{brodner_perspektivwechsel_2010,
  title = {Perspektivwechsel auf {IS} - {Von} der {Systemgestaltung} zur {Strukturation} sozialer {Praxis}},
  abstract = {Der Beitrag befasst sich mit der theoretischen Fundierung der zweckmäßigen Gestaltung von Informa- tionssystemen. Er trägt zu einem internationalen Diskurs bei, der durch eine grundlegende Arbeit von Hevner et al. (2004) angestoßen wurde. Allerdings wirft deren Perspektive begriffliche und theoreti- sche Schwierigkeiten auf, die in einer eingeschränkten Rezeption pragmatischer Weltsicht wurzeln, auf die sich die Autoren berufen, und die ein unzureichendes Verständnis der Gestaltungsaufgabe zur Folge haben. Abhilfe lässt sich durch eine Erweiterung des theoretischen Rahmens gewinnen, der nicht nur die zu gestaltenden IT-Systeme, sondern vor allem auch deren Wechselwirkungen mit den sozialen Praktiken, die sie modellieren und im Gebrauch zugleich strukturieren, in den Blick nimmt. Diese ontologische und epistemologische Öffnung der Perspektive der Gestaltungswissenschaft hat methodi- sche Konsequenzen, die exemplarisch für die kanonische Aktionsforschung und Unternehmens- Ethnografie als aussichtsreichen neuen Vorgehensweisen erläutert werden. 1},
  journal = {Proceedings der 10. fachübergreifenden Konferenz Mensch und Computer (MuC'10): Interaktive Kulturen},
  author = {Brödner, Peter and Rohde, Markus and Stevens, Gunnar and Wulf, Volker},
  year = {2010},
  pages = {149--158},
  annote = {ISBN: 978-3-486-70408-2},
  }

• ---

  Meurer, J., Schwartz, T. & Stevens, G. (2010)Understanding and supporting usability practices in Open Source Software Development

  FLOSS HCI Workshop (10.-15. April) at CHI 2010. Atlanta, Georgia, USA, Pages: 4
  [BibTeX]

  @inproceedings{meurer_understanding_2010,
  address = {Atlanta, Georgia, USA},
  title = {Understanding and supporting usability practices in {Open} {Source} {Software} {Development}},
  booktitle = {{FLOSS} {HCI} {Workshop} (10.-15. {April}) at {CHI} 2010},
  author = {Meurer, Johanna and Schwartz, Tobias and Stevens, Gunnar},
  year = {2010},
  pages = {4},
  }

• ---

  Stevens, G. & Draxler, S. (2010)Appropriation of the Eclipse Ecosystem: Local Integration of Global Network Production

  IN Proceedings of COOP, Pages: 287–308 doi:10.1007/978-1-84996-211-7
  [BibTeX] [Download PDF]

  @article{stevens_appropriation_2010-1,
  title = {Appropriation of the {Eclipse} {Ecosystem}: {Local} {Integration} of {Global} {Network} {Production}},
  url = {http://link.springer.com/10.1007/978-1-84996-211-7%5Cnhttp://coop.wineme.fb5.uni-siegen.de/proceedings2010/16_gStevens_et_al_287_308.pdf},
  doi = {10.1007/978-1-84996-211-7},
  journal = {Proceedings of COOP},
  author = {Stevens, Gunnar and Draxler, Sebastian},
  year = {2010},
  keywords = {cscw, appropriation, end user development, empirical study, software eco-, systems},
  pages = {287--308},
  annote = {ISBN: 978-1-84996-210-0},
  }

2009

• ---

  Stevens, G. & Wulf, V. (2009)Computer-supported access control

  IN ACM Transactions on Computer-Human Interaction (ToCHI), Vol. 16, Pages: 1–26 doi:10.1145/1592440.1592441
  [BibTeX] [Download PDF]

  @article{stevens_computer-supported_2009,
  title = {Computer-supported access control},
  volume = {16},
  issn = {10730516},
  url = {http://portal.acm.org/citation.cfm?doid=1592440.1592441},
  doi = {10.1145/1592440.1592441},
  number = {3},
  journal = {ACM Transactions on Computer-Human Interaction (ToCHI)},
  author = {Stevens, Gunnar and Wulf, Volker},
  year = {2009},
  keywords = {A-Paper},
  pages = {1--26},
  }

• ---

  Schwartz, T., Meurer, J. & Stevens, G. (2009)Nutzerinnovation im Eclipse Fall aus der Perspektive einer unternehmerischen Arbeitspraxis

  Workshop-Proceedings der Tagung Mensch & Computer 2009: Grenzenlos frei?.
  [BibTeX]

  @inproceedings{schwartz_nutzerinnovation_2009,
  title = {Nutzerinnovation im {Eclipse} {Fall} aus der {Perspektive} einer unternehmerischen {Arbeitspraxis}},
  booktitle = {Workshop-{Proceedings} der {Tagung} {Mensch} \& {Computer} 2009: {Grenzenlos} frei?},
  author = {Schwartz, Tobias and Meurer, Johanna and Stevens, Gunnar},
  year = {2009},
  }

• ---

  Stevens, G., Schwartz, T. & Meurer, J. (2009)A dialectiv view on open innovation

  Proceedings of the 15th Americas Conference on Information Systems (AMCIS 2009). San Francisco, USA
  [BibTeX]

  @inproceedings{stevens_dialectiv_2009,
  address = {San Francisco, USA},
  title = {A dialectiv view on open innovation},
  booktitle = {Proceedings of the 15th {Americas} {Conference} on {Information} {Systems} ({AMCIS} 2009)},
  author = {Stevens, Gunnar and Schwartz, Tobias and Meurer, Johanna},
  year = {2009},
  keywords = {PRAXLABS},
  }

• ---

  Stevens, G. & Nett, B. (2009)Business Ethnography as a research method to support evolutionary design

  IN Schnitte durch das Hier und Jetzt, Qualitative Methoden medienwissenschaftlicher Gegenwartsforschung, Vol. 2, Pages: 119–136
  [BibTeX] [Download PDF]

  @article{stevens_business_2009,
  title = {Business {Ethnography} as a research method to support evolutionary design},
  volume = {2},
  url = {https://www.wineme.uni-siegen.de/paper/2009/stevens-nett_ethnography_evolutionary-design_2009.pdf},
  journal = {Schnitte durch das Hier und Jetzt, Qualitative Methoden medienwissenschaftlicher Gegenwartsforschung},
  author = {Stevens, Gunnar and Nett, Bernhard},
  year = {2009},
  pages = {119--136},
  }

• ---

  Draxler, S., Sander, H., Jain, P., Jung, A. & Stevens, G. (2009)Peerclipse: Tool Awareness in Local Communities

  , Pages: 19
  [BibTeX]

  @article{draxler_peerclipse_2009,
  title = {Peerclipse: {Tool} {Awareness} in {Local} {Communities}},
  author = {Draxler, Sebastian and Sander, Hendrik and Jain, Piyush and Jung, Adrian and Stevens, Gunnar},
  year = {2009},
  pages = {19},
  }

• ---

  Stevens, G., Pipek, V. & Wulf, V. (2009)Appropriation Infrastructure: Supporting the Design of Usages

  End-User Development – 2nd International Symposium, IS-EUD 2009, Siegen, Germany, March 2-4, 2009. Proceedings., Publisher: Springer, Pages: 50–69 doi:10.1007/978-3-642-00427-8_4
  [BibTeX] [Download PDF]

  @inproceedings{stevens_appropriation_2009,
  series = {Lecture {Notes} in {Computer} {Science}},
  title = {Appropriation {Infrastructure}: {Supporting} the {Design} of {Usages}},
  volume = {5435},
  isbn = {978-3-642-00425-4},
  url = {http://dx.doi.org/10.1007/978-3-642-00427-8_4 http://link.springer.com/chapter/10.1007/978-3-642-00427-8_4},
  doi = {10.1007/978-3-642-00427-8_4},
  booktitle = {End-{User} {Development} - 2nd {International} {Symposium}, {IS}-{EUD} 2009, {Siegen}, {Germany}, {March} 2-4, 2009. {Proceedings}},
  publisher = {Springer},
  author = {Stevens, Gunnar and Pipek, Volkmar and Wulf, Volker},
  editor = {Pipek, Volkmar and Rosson, Mary Beth and de Ruyter, Boris E R and Wulf, Volker},
  year = {2009},
  keywords = {CSCW, DBL, CONTici},
  pages = {50--69},
  }

• ---

  Schwartz, T., Meurer, J. & Stevens, G. (2009)On the Social Construction of Open Innovation

  IN Proceedings of the International Workshop on Open Design Spaces (ODS ’09) held in conjunction with the 2nd International Symposium on End User Developments (IS-EUD 2009)
  [BibTeX]

  @article{schwartz_social_2009,
  title = {On the {Social} {Construction} of {Open} {Innovation}},
  journal = {Proceedings of the International Workshop on Open Design Spaces (ODS '09) held in conjunction with the 2nd International Symposium on End User Developments (IS-EUD 2009)},
  author = {Schwartz, Tobias and Meurer, Johanna and Stevens, Gunnar},
  year = {2009},
  }

2008

• ---

  Draxler, S., Sander, H. & Stevens, G. (2008)Plug-in recommending for Eclipse users

  IN Patras
  [BibTeX]

  @article{draxler_plug-recommending_2008,
  title = {Plug-in recommending for {Eclipse} users},
  journal = {Patras},
  author = {Draxler, Sebastian and Sander, Hendrik and Stevens, Gunnar},
  year = {2008},
  }

• ---

  Schubert, K., Veith, M., Stevens, G. & Wulf, V. (2008)Spielerisches Konstruieren im virtuellen Medium: Digitale Baukästen in interkulturellen Computer Clubs

  IN Navigationen, Vol. 8, Pages: 103–121
  [BibTeX] [Download PDF]

  @article{schubert_spielerisches_2008,
  title = {Spielerisches {Konstruieren} im virtuellen {Medium}: {Digitale} {Baukästen} in interkulturellen {Computer} {Clubs}},
  volume = {8},
  url = {https://www.wineme.uni-siegen.de/paper/2008/interaktionen–schubert-veith-stevens-wulf–spielerisches_konstruieren–2008.pdf},
  number = {1},
  journal = {Navigationen},
  author = {Schubert, Kai and Veith, Michael and Stevens, Gunnar and Wulf, Volker},
  year = {2008},
  keywords = {Come\_In},
  pages = {103--121},
  }

• ---

  Pipek, V., Stevens, G., Müller, C., Veith, M. & Draxler, S. (2008)Towards an Appropriation Infrastructure: Supporting User Creativity in IT Adoption

  Proceedings of the European Conference on Information Systems (ECIS). Galway, Ireland, Pages: 1165–1177
  [BibTeX] [Download PDF]

  @inproceedings{pipek_towards_2008,
  address = {Galway, Ireland},
  title = {Towards an {Appropriation} {Infrastructure}: {Supporting} {User} {Creativity} in {IT} {Adoption}},
  url = {http://is2.lse.ac.uk/asp/aspecis/20080099.pdf},
  booktitle = {Proceedings of the {European} {Conference} on {Information} {Systems} ({ECIS})},
  author = {Pipek, Volkmar and Stevens, Gunnar and Müller, Claudia and Veith, Michael and Draxler, Sebastian},
  editor = {Golden, Willie and Acton, Thomas and Conboy, Kieran and van der Heijden, Hans and Tuunainen, Virpi Kristiina},
  year = {2008},
  keywords = {CSCW},
  pages = {1165--1177},
  }

• ---

  Nett, B., Meurer, J. & Stevens, G. (2008)Knowledge Management-in-action in an EUD-oriented Software Enterprise

  IN Knowledge Management In Action
  [BibTeX]

  @incollection{nett_knowledge_2008,
  title = {Knowledge {Management}-in-action in an {EUD}-oriented {Software} {Enterprise}},
  booktitle = {Knowledge {Management} {In} {Action}},
  publisher = {Springer US},
  author = {Nett, Bernhard and Meurer, Johanna and Stevens, Gunnar},
  year = {2008},
  pages = {139--149},
  }

• ---

  Stevens, G. & Wiedenhoefer, T. (2008)Wiki inside. Neue Nutzungsformen von Wikis am Beispiel einer communitybasierten Kontexthilfe

  IN Interaktionen, Sonderheft von Navigationen: Zeitschrift für Medien- und Kulturwissenschaften, Vol. 8, Pages: 159–184
  [BibTeX] [Download PDF]

  @article{stevens_wiki_2008,
  title = {Wiki inside. {Neue} {Nutzungsformen} von {Wikis} am {Beispiel} einer communitybasierten {Kontexthilfe}},
  volume = {8},
  url = {http://dl.acm.org/citation.cfm?doid=1182475.1182498},
  number = {1},
  journal = {Interaktionen, Sonderheft von Navigationen: Zeitschrift für Medien- und Kulturwissenschaften},
  author = {Stevens, Gunnar and Wiedenhoefer, Torben},
  year = {2008},
  keywords = {CSCW},
  pages = {159--184},
  }

2007

• ---

  Betz, M., Huq, M., Pipek, V., Rohde, M., Stevens, G. & Wulf, V. (2007)Architecture for Adaptable Component Based Mobile Systems: End User Driven Real Life Tagging for Individualized Context-Awareness. Designing for Palpability Workshop at Pervasive 2007

  Fifth International Conference on Pervasive Computing. Toronto, Ontario, Canada
  [BibTeX]

  @inproceedings{betz_architecture_2007,
  address = {Toronto, Ontario, Canada},
  title = {Architecture for {Adaptable} {Component} {Based} {Mobile} {Systems}: {End} {User} {Driven} {Real} {Life} {Tagging} for {Individualized} {Context}-{Awareness}. {Designing} for {Palpability} {Workshop} at {Pervasive} 2007},
  booktitle = {Fifth {International} {Conference} on {Pervasive} {Computing}},
  author = {Betz, Matthias and Huq, Mahmudul and Pipek, Volkmar and Rohde, Markus and Stevens, Gunnar and Wulf, Volker},
  year = {2007},
  }

• ---

  Stevens, G., Wulf, V. & Pipek, V. (2007)Infrastrukturen zur Aneignungsunterstützung – Ein Konzept zur Integration von produkt- und prozessorientierter Flexibilisierung

  eOrganisation: Service-, Prozess-, Market-Engineering: 8. Internationale Tagung Wirtschaftsinformatik – Band 1, WI 2007, Karlsruhe, Germany, February 28 – March 2, 2007., Publisher: Universitaetsverlag Karlsruhe, Pages: 823–840
  [BibTeX] [Download PDF]

  @inproceedings{stevens_infrastrukturen_2007,
  title = {Infrastrukturen zur {Aneignungsunterstützung} - {Ein} {Konzept} zur {Integration} von produkt- und prozessorientierter {Flexibilisierung}},
  isbn = {978-3-86644-094-4},
  url = {http://aisel.aisnet.org/wi2007/49},
  booktitle = {{eOrganisation}: {Service}-, {Prozess}-, {Market}-{Engineering}: 8. {Internationale} {Tagung} {Wirtschaftsinformatik} - {Band} 1, {WI} 2007, {Karlsruhe}, {Germany}, {February} 28 - {March} 2, 2007},
  publisher = {Universitaetsverlag Karlsruhe},
  author = {Stevens, Gunnar and Wulf, Volker and Pipek, Volkmar},
  editor = {Oberweis, Andreas and Weinhardt, Christof and Gimpel, Henner and Koschmider, Agnes and Pankratius, Victor and Schnizler, Björn},
  year = {2007},
  keywords = {A-Paper, CSCW},
  pages = {823--840},
  }

• ---

  Müller, F., Stevens, G., Thorogood, A., O’Brien, S. & Wulf, V. (2007)Sports over a distance

  IN Personal and Ubiquitous Computing, Vol. 11, Pages: 633–645 doi:10.1007/s00779-006-0133-0
  [BibTeX] [Abstract]

  Sport is a domain full of movement-based interactions. These interactions typically have positive health effects as well as an impact on social bonding. We have investigated ways in which computer augmented devices can lead to new sport experiences and explored opportunities to combine physical activities with remote social bonding. Three prototypes have been implemented which showcase movement-based interaction in sports. “Breakout for Two” allows geographically distant users to play a physically exhausting ball game together. “\{FlyGuy\}” gives users a hang-glide experience controllable through body movement. “Push’N’Pull” uses isometric exercise equipment over a network to encourage users to complete a cooperative game whilst performing intense muscular actions. A comparison of these applications shows that such movement-based interaction in a networked environment allows players in different locations to achieve a work out and also to socialize. Based on these projects, we conclude with practical design implications for future Exertion Interfaces.

  @article{muller_sports_2007,
  title = {Sports over a distance},
  volume = {11},
  issn = {16174909},
  doi = {10.1007/s00779-006-0133-0},
  abstract = {Sport is a domain full of movement-based interactions. These interactions typically have positive health effects as well as an impact on social bonding. We have investigated ways in which computer augmented devices can lead to new sport experiences and explored opportunities to combine physical activities with remote social bonding. Three prototypes have been implemented which showcase movement-based interaction in sports. “Breakout for Two” allows geographically distant users to play a physically exhausting ball game together. “\{FlyGuy\}” gives users a hang-glide experience controllable through body movement. “Push'N'Pull” uses isometric exercise equipment over a network to encourage users to complete a cooperative game whilst performing intense muscular actions. A comparison of these applications shows that such movement-based interaction in a networked environment allows players in different locations to achieve a work out and also to socialize. Based on these projects, we conclude with practical design implications for future Exertion Interfaces.},
  number = {8},
  journal = {Personal and Ubiquitous Computing},
  author = {Müller, Florian and Stevens, Gunnar and Thorogood, Alex and O'Brien, Shannon and Wulf, Volker},
  year = {2007},
  pages = {633--645},
  annote = {ISBN: 0077900601330},
  }

• ---

  Betz, M., Huq, M., Pipek, V., Rohde, M., Stevens, G., Englert, R. & Wulf, V. (2007)An Architecture for Adaptive and Adaptable Mobile Applications for Physically Handicapped People

  Universal Access in Human Computer Interaction. Coping with Diversity, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007, Held as Part of HCI International 2007, Beijing, China, July 22-27, 2007, Proceedings, P., Publisher: Springer, Pages: 335–344 doi:10.1007/978-3-540-73279-2_37
  [BibTeX] [Download PDF]

  @inproceedings{betz_architecture_2007-1,
  series = {Lecture {Notes} in {Computer} {Science}},
  title = {An {Architecture} for {Adaptive} and {Adaptable} {Mobile} {Applications} for {Physically} {Handicapped} {People}},
  volume = {4554},
  isbn = {978-3-540-73278-5},
  url = {http://dx.doi.org/10.1007/978-3-540-73279-2_37},
  doi = {10.1007/978-3-540-73279-2_37},
  booktitle = {Universal {Access} in {Human} {Computer} {Interaction}. {Coping} with {Diversity}, 4th {International} {Conference} on {Universal} {Access} in {Human}-{Computer} {Interaction}, {UAHCI} 2007, {Held} as {Part} of {HCI} {International} 2007, {Beijing}, {China}, {July} 22-27, 2007, {Proceedings}, {P}},
  publisher = {Springer},
  author = {Betz, Matthias and Huq, Mahmudul and Pipek, Volkmar and Rohde, Markus and Stevens, Gunnar and Englert, Roman and Wulf, Volker},
  editor = {Stephanidis, Constantine},
  year = {2007},
  keywords = {CSCW},
  pages = {335--344},
  }

• ---

  Pipek, V., Veith, M., Stevens, G., Müller, C. & Draxler, S. (2007)Jede Software ist „Social“

  IN Gronau, N. & Mueller, C. (Eds.), Analyse sozialer Netzwerke und Social Software – Grundlagen und Anwendungsbeispiele Berlin
  [BibTeX]

  @incollection{pipek_jede_2007,
  address = {Berlin},
  title = {Jede {Software} ist "{Social}"},
  booktitle = {Analyse sozialer {Netzwerke} und {Social} {Software} - {Grundlagen} und {Anwendungsbeispiele}},
  publisher = {GITO Verlag},
  author = {Pipek, Volkmar and Veith, Michael and Stevens, Gunnar and Müller, Claudia and Draxler, Sebastian},
  editor = {Gronau, N. and Mueller, C.},
  year = {2007},
  keywords = {CSCW},
  pages = {199--234},
  }

2006

• ---

  Pipek, V., Rosson, M., Stevens, G. & Wulf, V. (2006)Supporting the Appropriation of ICT: End-User Development in Civil Societies

  IN Learning in Communities – Interdisciplinary Perspectives on Human Centered Information Technology, Vol. 2, Pages: 25–27 doi:10.1007/978-1-84800-332-3_6
  [BibTeX] [Download PDF]

  @article{pipek_supporting_2006,
  series = {Human-{Computer} {Interaction} {Series}},
  title = {Supporting the {Appropriation} of {ICT}: {End}-{User} {Development} in {Civil} {Societies}},
  volume = {2},
  url = {http://dx.doi.org/10.1007/978-1-84800-332-3_6},
  doi = {10.1007/978-1-84800-332-3_6},
  number = {2},
  journal = {Learning in Communities - Interdisciplinary Perspectives on Human Centered Information Technology},
  author = {Pipek, Volkmar and Rosson, Mary-Beth and Stevens, Gunnar and Wulf, Volker},
  editor = {Carroll, John M},
  year = {2006},
  keywords = {CSCW},
  pages = {25--27},
  annote = {ISBN: 978-1-84800-331-6 Publisher: Springer},
  }

• ---

  Stevens, G., Wulf, V., Rohde, M. & Zimmermann, A. (2006)Ubiquitous fitness support starts in everyday’s context

  Proceedings of the 6th World Conference „The Engineering of Sport“, July 11 to 14. München
  [BibTeX]

  @inproceedings{stevens_ubiquitous_2006,
  address = {München},
  title = {Ubiquitous fitness support starts in everyday's context},
  booktitle = {Proceedings of the 6th {World} {Conference} "{The} {Engineering} of {Sport}", {July} 11 to 14},
  author = {Stevens, Gunnar and Wulf, Volker and Rohde, Markus and Zimmermann, Andreas},
  year = {2006},
  }

• ---

  Stevens, G. & Wiedenhoefer, T. (2006)CHIC – a pluggable solution for community help in context

  Proceedings of the 4th Nordic Conference on Human-Computer Interaction 2006, Oslo, Norway, October 14-18, 2006., Publisher: ACM, Pages: 212–221 doi:10.1145/1182475.1182498
  [BibTeX] [Download PDF]

  @inproceedings{stevens_chic_2006,
  title = {{CHIC} - a pluggable solution for community help in context},
  url = {http://doi.acm.org/10.1145/1182475.1182498 http://dl.acm.org/citation.cfm?doid=1182475.1182498},
  doi = {10.1145/1182475.1182498},
  booktitle = {Proceedings of the 4th {Nordic} {Conference} on {Human}-{Computer} {Interaction} 2006, {Oslo}, {Norway}, {October} 14-18, 2006},
  publisher = {ACM},
  author = {Stevens, Gunnar and Wiedenhoefer, Torben},
  editor = {Mørch, Anders I and Morgan, Konrad and Bratteteig, Tone and Ghosh, Gautam and Svanaes, Dag},
  year = {2006},
  keywords = {CSCW},
  pages = {212--221},
  }

• ---

  Draxler, S. & Stevens, G. (2006)Getting out of a tailorability dilemma

  Informatik 2006., Pages: 576–579
  [BibTeX]

  @inproceedings{draxler_getting_2006,
  title = {Getting out of a tailorability dilemma},
  volume = {1},
  booktitle = {Informatik 2006},
  author = {Draxler, Sebastian and Stevens, Gunnar},
  year = {2006},
  pages = {576--579},
  }

• ---

  Stevens, G., Wulf, V., Rohde, M. & Zimmermann, A. (2006)Ubiquitous Fitness Support Starts in Everyday’s Context

  The Engineering of Sport 6. New York, NY, Publisher: Springer, Pages: 191–196 doi:10.1007/978-0-387-45951-6_35
  [BibTeX] [Abstract]

  The paper describes the results of ethnographic studies of fitness and sports activities, and introduces a framework for developing concepts and solutions in this area.

  @inproceedings{stevens_ubiquitous_2006-1,
  address = {New York, NY},
  title = {Ubiquitous {Fitness} {Support} {Starts} in {Everyday}’s {Context}},
  isbn = {978-0-387-45951-6},
  doi = {10.1007/978-0-387-45951-6_35},
  abstract = {The paper describes the results of ethnographic studies of fitness and sports activities, and introduces a framework for developing concepts and solutions in this area.},
  language = {en},
  booktitle = {The {Engineering} of {Sport} 6},
  publisher = {Springer},
  author = {Stevens, Gunnar and Wulf, Volker and Rohde, Markus and Zimmermann, Andreas},
  editor = {Moritz, Eckehard Fozzy and Haake, Steve},
  year = {2006},
  keywords = {Fitness Activity, Fitness Center, Fitness Trainer, Sport Engineer, Training Plan},
  pages = {191--196},
  }

2005

• ---

  Nett, B., Stevens, G. & Wulf, V. (2005)Zur Unterstützung von Wissensprozessen in Unternehmensnetzwerken – Eine Fallstudie kontextgerechter Technikgestaltung

  IN Der Mensch in der Kommunikation mit der Technik Aachen, Germany
  [BibTeX]

  @incollection{nett_zur_2005,
  address = {Aachen, Germany},
  title = {Zur {Unterstützung} von {Wissensprozessen} in {Unternehmensnetzwerken} – {Eine} {Fallstudie} kontextgerechter {Technikgestaltung}},
  isbn = {3-86130-456-2},
  booktitle = {Der {Mensch} in der {Kommunikation} mit der {Technik}},
  publisher = {Wissenschaftsverlag Mainz},
  author = {Nett, Bernhard and Stevens, Gunnar and Wulf, Volker},
  year = {2005},
  pages = {191--206},
  }

• ---

  Stevens, G. & Al-Zubaidi, K. (2005)Gaming, Working and Socialization: The case of FreeStyle Backgammon inside BSCWeasel

  IN presented at The ECSCW’05 workshop on „Computer Games & CSCW“
  [BibTeX]

  @article{stevens_gaming_2005,
  title = {Gaming, {Working} and {Socialization}: {The} case of {FreeStyle} {Backgammon} inside {BSCWeasel}},
  journal = {presented at The ECSCW'05 workshop on "Computer Games \& CSCW"},
  author = {Stevens, Gunnar and Al-Zubaidi, Kanan},
  year = {2005},
  }

• ---

  Stevens, G. (2005)BSCWeasel – How to make an existing Groupware System more flexible

  IN presented at Demonstration on the ECSCW 2005
  [BibTeX]

  @article{stevens_bscweasel_2005,
  title = {{BSCWeasel} - {How} to make an existing {Groupware} {System} more flexible},
  journal = {presented at Demonstration on the ECSCW 2005},
  author = {Stevens, Gunnar},
  year = {2005},
  }

• ---

  Dittrich, Y., Dourish, P., Mørch, A., Pipek, V., Stevens, G. & Törpel, B. (2005)Special Issue on Supporting Appropriation Work

  IN International Reports on Socio-Informatics (IRSI), Vol. 2, Pages: 84 p.
  [BibTeX]

  @article{dittrich_special_2005,
  title = {Special {Issue} on {Supporting} {Appropriation} {Work}},
  volume = {2},
  number = {2},
  journal = {International Reports on Socio-Informatics (IRSI)},
  author = {Dittrich, Yvonne and Dourish, Paul and Mørch, Anders and Pipek, Volkmar and Stevens, Gunnar and Törpel, Bettina},
  year = {2005},
  keywords = {CSCW},
  pages = {84 p.},
  }

• ---

  Stevens, G., Wulf, V., Rohde, M. & Zimmermann, A. (2005)Ubiquitous Fitness Support Starts in the Everyday’s Context

  UbiComp 05, Seventh International Conference on Ubiquitous Computing. Tokyo, Japan
  [BibTeX]

  @inproceedings{stevens_ubiquitous_2005,
  address = {Tokyo, Japan},
  title = {Ubiquitous {Fitness} {Support} {Starts} in the {Everyday}'s {Context}},
  booktitle = {{UbiComp} 05, {Seventh} {International} {Conference} on {Ubiquitous} {Computing}},
  author = {Stevens, Gunnar and Wulf, Volker and Rohde, Markus and Zimmermann, Andreas},
  year = {2005},
  }

• ---

  Stevens, G. & Al-Zubaidi, K. (2005)Spiel, Arbeit und Sozialität: FreeStyle Backgammon im BSCWeasel

  IN presented at Workshop „Kooperative Spiele“ auf der Konferenz Mensch und Computer 2005
  [BibTeX]

  @article{stevens_spiel_2005,
  title = {Spiel, {Arbeit} und {Sozialität}: {FreeStyle} {Backgammon} im {BSCWeasel}},
  journal = {presented at Workshop "Kooperative Spiele" auf der Konferenz Mensch und Computer 2005},
  author = {Stevens, Gunnar and Al-Zubaidi, Kanan},
  year = {2005},
  }

• ---

  Stevens, G., Veith, M. & Wulf, V. (2005)Bridging among ethnic communities by cross-cultural communities of practice

  IN Proceedings of the 2nd Communities and Technologies Conference, C and T 2005, Pages: 377–396 doi:10.1007/1-4020-3591-8-20
  [BibTeX] [Abstract]

  The integration of immigrants is a big challenge for western societies. In this paper we describe how to bridge between ethnically defined communities by means of computer-supported project work. Our approach is grounded in socio-cultural theories of learning, especially Community of Practice (CoP). To evaluate our approach, we have built up a computer club in a multi cultural neighbourhood of the city of Bonn. Parents and children of mainly German and Turkish origin work jointly to create multimedia artefacts. These artefacts represent aspects of the neighbourhood’s recent history. The paper describes the project and its theoretical background. We also provide empirical findings to evaluate our approach.

  @article{stevens_bridging_2005,
  title = {Bridging among ethnic communities by cross-cultural communities of practice},
  doi = {10.1007/1-4020-3591-8-20},
  abstract = {The integration of immigrants is a big challenge for western societies. In this paper we describe how to bridge between ethnically defined communities by means of computer-supported project work. Our approach is grounded in socio-cultural theories of learning, especially Community of Practice (CoP). To evaluate our approach, we have built up a computer club in a multi cultural neighbourhood of the city of Bonn. Parents and children of mainly German and Turkish origin work jointly to create multimedia artefacts. These artefacts represent aspects of the neighbourhood's recent history. The paper describes the project and its theoretical background. We also provide empirical findings to evaluate our approach.},
  number = {June},
  journal = {Proceedings of the 2nd Communities and Technologies Conference, C and T 2005},
  author = {Stevens, Gunnar and Veith, Michael and Wulf, Volker},
  year = {2005},
  keywords = {Come\_In},
  pages = {377--396},
  annote = {ISBN: 140203590X},
  }

2004

• ---

  Wulf, V., Moritz, E. F., Henneke, C., Al-Zubaidi, K. & Stevens, G. (2004)Computer Supported Collaborative Sports: An Emerging Paradigm

  IN Digital Sports for Performance Enhancement and Competitive Evolution doi:10.1007/978-3-540-28643-1_11
  [BibTeX] [Download PDF]

  @incollection{wulf_computer_2004,
  title = {Computer {Supported} {Collaborative} {Sports}: {An} {Emerging} {Paradigm}},
  url = {http://link.springer.com/10.1007/978-3-540-28643-1_11},
  booktitle = {Digital {Sports} for {Performance} {Enhancement} and {Competitive} {Evolution}},
  publisher = {Springer Berlin Heidelberg},
  author = {Wulf, Volker and Moritz, Eckehard F. and Henneke, Christian and Al-Zubaidi, Kanan and Stevens, Gunnar},
  year = {2004},
  doi = {10.1007/978-3-540-28643-1_11},
  pages = {80--89},
  }

• ---

  Wulf, V., Moritz, E. F., Henneke, C., Al-Zubaidi, K. & Stevens, G. (2004)Computer Supported Collaborative Sports: Creating Social Spaces Filled with Sports Activities

  doi:10.1007/978-3-540-28643-1_11
  [BibTeX] [Download PDF]

  @incollection{wulf_computer_2004-1,
  title = {Computer {Supported} {Collaborative} {Sports}: {Creating} {Social} {Spaces} {Filled} with {Sports} {Activities}},
  url = {http://link.springer.com/10.1007/978-3-540-28643-1_11},
  author = {Wulf, Volker and Moritz, Eckehard F. and Henneke, Christian and Al-Zubaidi, Kanan and Stevens, Gunnar},
  year = {2004},
  doi = {10.1007/978-3-540-28643-1_11},
  pages = {80--89},
  }

• ---

  Stevens, G., Budweg, S. & Pipek, V. (2004)The „BSCWeasel“ and Eclipse-powered Cooperative End User Development

  Workshop „Eclipse as a Vehicle for CSCW Research“ at the Int. Conf. on CSCW 2004. Chicago, IL, USA, Pages: 7 p.
  [BibTeX]

  @inproceedings{stevens_bscweasel_2004,
  address = {Chicago, IL, USA},
  title = {The "{BSCWeasel}" and {Eclipse}-powered {Cooperative} {End} {User} {Development}},
  booktitle = {Workshop "{Eclipse} as a {Vehicle} for {CSCW} {Research}" at the {Int}. {Conf}. on {CSCW} 2004},
  author = {Stevens, Gunnar and Budweg, Steffen and Pipek, Volkmar},
  year = {2004},
  keywords = {CSCW},
  pages = {7 p.},
  }

• ---

  Stevens, G., Won, M., Klann, M., Dittrich, Y. & Wulf, V. (2004)Component-Based Technologies for End-User Development

  IN Communications of the ACM, Vol. 47, Pages: 59–62
  [BibTeX]

  @article{stevens_component-based_2004,
  title = {Component-{Based} {Technologies} for {End}-{User} {Development}},
  volume = {47},
  number = {9},
  journal = {Communications of the ACM},
  author = {Stevens, Gunnar and Won, Markus and Klann, Markus and Dittrich, Yvonne and Wulf, Volker},
  year = {2004},
  pages = {59--62},
  }

• ---

  Nett, B. & Stevens, G. (2004)Technikgestaltende Aktionsforschung: Forschung als Partizipation

  IN ie Virtualisierung der Arbeit – Zur Ethnographie neuer Arbeits- und Organisationsformen
  [BibTeX] [Download PDF]

  @article{nett_technikgestaltende_2004,
  title = {Technikgestaltende {Aktionsforschung}: {Forschung} als {Partizipation}},
  url = {http://publica.fraunhofer.de/documents/2004964866.html},
  journal = {ie Virtualisierung der Arbeit - Zur Ethnographie neuer Arbeits- und Organisationsformen},
  author = {Nett, Bernhard and Stevens, Gunnar},
  year = {2004},
  }

2003

• ---

  Stevens, G., Veith, M. & Wulf, V. (2003)Come_In: Using Computers to Foster the Integration of Migrant Communities

  IN ACM SIGGROUP Bulletin, Vol. 24, Pages: 66–72
  [BibTeX]

  @article{stevens_come_in_2003,
  title = {Come\_In: {Using} {Computers} to {Foster} the {Integration} of {Migrant} {Communities}},
  volume = {24},
  number = {3},
  journal = {ACM SIGGROUP Bulletin},
  author = {Stevens, Gunnar and Veith, Michael and Wulf, Volker},
  year = {2003},
  keywords = {Come\_In},
  pages = {66--72},
  }

2002

• ---

  Stevens, G. (2002)Komponentenbasierte Anpassbarkeit: FlexiBeans zur Realisierung einer erweiterten Zugriffskontrolle (Diplomarbeit)

  Diplomarbeit
  [BibTeX] [Download PDF]

  @phdthesis{stevens_komponentenbasierte_2002,
  type = {Diplomarbeit},
  title = {Komponentenbasierte {Anpassbarkeit}: {FlexiBeans} zur {Realisierung} einer erweiterten {Zugriffskontrolle} ({Diplomarbeit})},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2016/11/da_stevens-komponentenbasierte_anpassbarkeit-2002.pdf},
  author = {Stevens, Gunnar},
  year = {2002},
  keywords = {Thesis, Diplomarbeit},
  }

• ---

  Stevens, G. & Wulf, V. (2002)A New Dimension in Access Control: Studying Maintenance Engineering across Organizational Boundaries

  Proceedings of ACM Conference on Computer Supported Cooperative Work (CSCW 2002). New York, Publisher: ACM-Press, Pages: 196–205
  [BibTeX]

  @inproceedings{stevens_new_2002,
  address = {New York},
  title = {A {New} {Dimension} in {Access} {Control}: {Studying} {Maintenance} {Engineering} across {Organizational} {Boundaries}},
  booktitle = {Proceedings of {ACM} {Conference} on {Computer} {Supported} {Cooperative} {Work} ({CSCW} 2002)},
  publisher = {ACM-Press},
  author = {Stevens, Gunnar and Wulf, Volker},
  year = {2002},
  pages = {196--205},
  }

• ---

  Stevens, G. & Wulf, V. (2002)Elektronische Archive in virtuellen Organisationen: Flexibilisierte Zugriffskontrolle auf Basis von Komponententechnologie

  IN Informatik-Spektrum, Vol. 25, Pages: 12–21
  [BibTeX]

  @article{stevens_elektronische_2002,
  title = {Elektronische {Archive} in virtuellen {Organisationen}: {Flexibilisierte} {Zugriffskontrolle} auf {Basis} von {Komponententechnologie}},
  volume = {25},
  number = {1},
  journal = {Informatik-Spektrum},
  author = {Stevens, Gunnar and Wulf, Volker},
  year = {2002},
  pages = {12--21},
  }

2001

• ---

  Stevens, G. (2001)Elektronische Archive in Organisationsnetzwerken – Neue Erfordernisse für die Zugriffskontrolle

  IN Auf dem Weg zur virtuellen Organisation: Fallstudien, Problembeschreibungen, Lösungsansätze
  [BibTeX]

  @incollection{stevens_elektronische_2001,
  title = {Elektronische {Archive} in {Organisationsnetzwerken} - {Neue} {Erfordernisse} für die {Zugriffskontrolle}},
  booktitle = {Auf dem {Weg} zur virtuellen {Organisation}: {Fallstudien}, {Problembeschreibungen}, {Lösungsansätze}},
  author = {Stevens, Gunnar},
  year = {2001},
  pages = {195--222},
  }

• ---

  Lawo, D., Esau, M. & Stevens, G. Same, but Different Data – Towards Integrated Food & Household Services

  , Pages: 5
  [BibTeX] [Abstract]

  While information about our food consumption behavior becomes more and more available through different digitalization trends within this domain, such as food related apps or smart kitchen devices, information remains captured in silos and can therefore not be used for usable and meaningful customer applications. This research in progress presents the approach of integrated food & household services, that are based on best practices of the integrated information systems domain and yet existing integrated fitness & health services, such as GoogleFit or Apple HealthKit.

  @article{lawo_same_nodate,
  title = {Same, but {Different} {Data} - {Towards} {Integrated} {Food} \& {Household} {Services}},
  abstract = {While information about our food consumption behavior becomes more and more available through different digitalization trends within this domain, such as food related apps or smart kitchen devices, information remains captured in silos and can therefore not be used for usable and meaningful customer applications. This research in progress presents the approach of integrated food \& household services, that are based on best practices of the integrated information systems domain and yet existing integrated fitness \& health services, such as GoogleFit or Apple HealthKit.},
  language = {en},
  author = {Lawo, Dennis and Esau, Margarita and Stevens, Gunnar},
  pages = {5},
  }

• ---

  Pins, D., Boden, A., Stevens, G. & Hofmann, B. Aneignung und Gebrauchstauglichkeit von Sprachassistenten im Anwendungsbereich Küche

  , Pages: 6
  [BibTeX] [Abstract]

  Die Küche ist neben dem Wohnzimmer ein Lebensmittelpunkt in vielen Haushalten. Hier wird nicht nur gekocht, sondern auch gelebt und gewirtschaftet. Sie bietet daher viele Potenziale für Smart-Home-Technologien, insbesondere der Verwendung von Sprachassistenten, die eine Reihe von Aufgaben im Bereich Küche unterstützen können. Ziel unserer Forschung ist es, unter Berücksichtigung der Aspekte nutzerorientierte Gestaltung, Anthropomorphismus der Interaktion und Zuverlässigkeit der bereitgestellten Information zu ermitteln, wie eine erfolgreiche Interaktion zwischen Menschen und Sprachassistenten gelingen kann. Die Herausforderung dabei ist unter anderem, dass Anwendungen ineinandergreifen und eine komplexe und vor allem flexible Form der Interaktion mittels Sprache erfordern. Um das Forschungsfeld besser zu verstehen, haben wir in einem ersten Schritt zehn Haushalte über ihre Nutzung und Zufriedenheit mit Sprachassistenten befragt. Erste Ergebnisse dieser explorativen Studie stellen wir im Rahmen dieses Beitrags vor.

  @article{pins_aneignung_nodate,
  title = {Aneignung und {Gebrauchstauglichkeit} von {Sprachassistenten} im {Anwendungsbereich} {Küche}},
  abstract = {Die Küche ist neben dem Wohnzimmer ein Lebensmittelpunkt in vielen Haushalten. Hier wird nicht nur gekocht, sondern auch gelebt und gewirtschaftet. Sie bietet daher viele Potenziale für Smart-Home-Technologien, insbesondere der Verwendung von Sprachassistenten, die eine Reihe von Aufgaben im Bereich Küche unterstützen können. Ziel unserer Forschung ist es, unter Berücksichtigung der Aspekte nutzerorientierte Gestaltung, Anthropomorphismus der Interaktion und Zuverlässigkeit der bereitgestellten Information zu ermitteln, wie eine erfolgreiche Interaktion zwischen Menschen und Sprachassistenten gelingen kann. Die Herausforderung dabei ist unter anderem, dass Anwendungen ineinandergreifen und eine komplexe und vor allem flexible Form der Interaktion mittels Sprache erfordern. Um das Forschungsfeld besser zu verstehen, haben wir in einem ersten Schritt zehn Haushalte über ihre Nutzung und Zufriedenheit mit Sprachassistenten befragt. Erste Ergebnisse dieser explorativen Studie stellen wir im Rahmen dieses Beitrags vor.},
  language = {de},
  author = {Pins, Dominik and Boden, Alexander and Stevens, Gunnar and Hofmann, Britta},
  pages = {6},
  }

• ---

  Müller, C., Ludwig, T., Pipek, V., Rohde, M., Stevens, G. & Wulf, V. Socio-Informatics: Design for Social Practices A condensed anthology of 25 Years of Research

  , Pages: 220
  [BibTeX]

  @article{muller_socio-informatics_nodate,
  title = {Socio-{Informatics}: {Design} for {Social} {Practices} {A} condensed anthology of 25 {Years} of {Research}},
  language = {en},
  author = {Müller, Claudia and Ludwig, Thomas and Pipek, Volkmar and Rohde, Markus and Stevens, Gunnar and Wulf, Volker},
  pages = {220},
  }