Dennis Lawo
Raum: US-D 120
Vita
Dennis Lawo studierte Wirtschaftsinformatik (Bachelor) von 2013 – 2016 in Siegen. Darauf folgte ein Masterstudium Information Systems an der Universität zu Köln von 2016 – 2018. Seit Oktober 2018 ist er Wissenschaftlicher Mitarbeiter am Instiut für Wirtschaftsinformatik und Neue Medien.
Publikationen
2023
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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}, }
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Neifer, T., Bossauer, P., Pakusch, C., Boehm, L. & Lawo, D. (2023)Trust-Building in Peer-to-Peer Carsharing: Design Case Study for Algorithm-Based Reputation Systems
IN Computer Supported Cooperative Work (CSCW) doi:10.1007/s10606-022-09461-4
[BibTeX] [Abstract] [Download PDF]Peer-to-peer sharing platforms become increasingly important in the platform economy. From an HCI-perspective, this development is of high interest, as those platforms mediate between different users. Such mediation entails dealing with various social issues, e.g., building trust between peers online without any physical presence. Peer ratings have proven to be an important mechanism in this regard. At the same time, scoring via car telematics become more common for risk assessment by car insurances. Since user ratings face crucial problems such as fake or biased ratings, we conducted a design case study to determine whether algorithm-based scoring has the potential to improve trust-building in P2P-carsharing. We started with 16 problem-centered interviews to examine how people understand algorithm-based scoring, we co-designed an app with scored profiles, and finally evaluated it with 12 participants. Our findings show that scoring systems can support trust-building in P2P-carsharing and give insights how they should be designed.
@article{neifer_trust-building_2023, title = {Trust-{Building} in {Peer}-to-{Peer} {Carsharing}: {Design} {Case} {Study} for {Algorithm}-{Based} {Reputation} {Systems}}, issn = {1573-7551}, shorttitle = {Trust-{Building} in {Peer}-to-{Peer} {Carsharing}}, url = {https://doi.org/10.1007/s10606-022-09461-4}, doi = {10.1007/s10606-022-09461-4}, abstract = {Peer-to-peer sharing platforms become increasingly important in the platform economy. From an HCI-perspective, this development is of high interest, as those platforms mediate between different users. Such mediation entails dealing with various social issues, e.g., building trust between peers online without any physical presence. Peer ratings have proven to be an important mechanism in this regard. At the same time, scoring via car telematics become more common for risk assessment by car insurances. Since user ratings face crucial problems such as fake or biased ratings, we conducted a design case study to determine whether algorithm-based scoring has the potential to improve trust-building in P2P-carsharing. We started with 16 problem-centered interviews to examine how people understand algorithm-based scoring, we co-designed an app with scored profiles, and finally evaluated it with 12 participants. Our findings show that scoring systems can support trust-building in P2P-carsharing and give insights how they should be designed.}, language = {en}, urldate = {2023-05-23}, journal = {Computer Supported Cooperative Work (CSCW)}, author = {Neifer, Thomas and Bossauer, Paul and Pakusch, Christina and Boehm, Lukas and Lawo, Dennis}, month = may, year = {2023}, keywords = {Car Telematics, P2P carsharing, Reputation systems, Scoring, Trust}, }
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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}, }
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Recki, L., Lawo, D., Krauss, V. & Pins, D. (2023)A Qualitative Exploration of User-Perceived Risks of AI to Inform Design and Policy
[BibTeX] [Abstract] [Download PDF]
AI systems pose unknown challenges for designers, policymakers, and users which aggravates the assessment of potential harms and outcomes. Although understanding risks is a requirement for building trust in technology, users are often excluded from legal assessments and explanations of AI hazards. To address this issue we conducted three focus groups with 18 participants in total and discussed the European proposal for a legal framework for AI. Based on this, we aim to build a (conceptual) model that guides policymakers, designers, and researchers in understanding users’ risk perception of AI systems. In this paper, we provide selected examples based on our preliminary results. Moreover, we argue for the benefits of such a perspective.
@article{recki_qualitative_2023, title = {A {Qualitative} {Exploration} of {User}-{Perceived} {Risks} of {AI} to {Inform} {Design} and {Policy}}, url = {https://dl.gi.de/handle/20.500.12116/42139}, abstract = {AI systems pose unknown challenges for designers, policymakers, and users which aggravates the assessment of potential harms and outcomes. Although understanding risks is a requirement for building trust in technology, users are often excluded from legal assessments and explanations of AI hazards. To address this issue we conducted three focus groups with 18 participants in total and discussed the European proposal for a legal framework for AI. Based on this, we aim to build a (conceptual) model that guides policymakers, designers, and researchers in understanding users’ risk perception of AI systems. In this paper, we provide selected examples based on our preliminary results. Moreover, we argue for the benefits of such a perspective.}, language = {de}, urldate = {2023-09-04}, author = {Recki, Lena and Lawo, Dennis and Krauss, Veronika and Pins, Dominik}, year = {2023}, note = {Publisher: GI}, }
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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
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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}, }
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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}, }
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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}, }
2021
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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}, }
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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}, }
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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}, }
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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}, }
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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}, }
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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}, }
2020
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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}, }
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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}, }
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Esau, M., Lawo, D. & Gunnar, S. (2020)Really Smart Fridges: Investigating Sustainable Household Storage Practices
[BibTeX] [Abstract] [Download PDF]
For a long time now, the ’smart fridge‘ is promised to improve everyday life in private households, supporting healthy eating habits and sustainable food practices. However, current technology is still not widespread and limited in its functions. Similarly, researched prototypes are rather persuasive and not aligned with consumers‘ storage practices. We took a practice theoretical lens to investigate current storage practices and actual refrigerators. As follows we present our work in progress and first insights from our contextual inquiry.
@inproceedings{esau_really_2020, title = {Really {Smart} {Fridges}: {Investigating} {Sustainable} {Household} {Storage} {Practices}}, url = {https://www.verbraucherinformatik.de/wp-content/uploads/2020/06/SmartFridges_ICT4S.pdf}, abstract = {For a long time now, the 'smart fridge' is promised to improve everyday life in private households, supporting healthy eating habits and sustainable food practices. However, current technology is still not widespread and limited in its functions. Similarly, researched prototypes are rather persuasive and not aligned with consumers' storage practices. We took a practice theoretical lens to investigate current storage practices and actual refrigerators. As follows we present our work in progress and first insights from our contextual inquiry.}, author = {Esau, Margarita and Lawo, Dennis and Gunnar, Stevens}, month = jun, year = {2020}, }
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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}, }
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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)}, }
2019
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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}, }
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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}, }
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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}, }
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Meurer, J., Lawo, D., Pakusch, C., Tolmie, P. & Wulf, V. (2019)Opportunities for Sustainable Mobility: Re-thinking Eco-feedback from a Citizen’s Perspective
Proceedings of the 9th International Conference on Communities & Technologies – Transforming Communities. New York, NY, USA, Publisher: ACM, Pages: 102–113 doi:10.1145/3328320.3328391
[BibTeX] [Download PDF]@inproceedings{meurer_opportunities_2019, address = {New York, NY, USA}, series = {C\&\#38;{T} '19}, title = {Opportunities for {Sustainable} {Mobility}: {Re}-thinking {Eco}-feedback from a {Citizen}'s {Perspective}}, isbn = {978-1-4503-7162-9}, url = {http://doi.acm.org/10.1145/3328320.3328391}, doi = {10.1145/3328320.3328391}, booktitle = {Proceedings of the 9th {International} {Conference} on {Communities} \& {Technologies} - {Transforming} {Communities}}, publisher = {ACM}, author = {Meurer, Johanna and Lawo, Dennis and Pakusch, Christina and Tolmie, Peter and Wulf, Volker}, year = {2019}, keywords = {eco-feedback tools, interview study, mobile phone data, mobility, Sustainable mobility}, pages = {102--113}, }
2016
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Lawo, D. (2016)Konzeption und Entwicklung eines Fahrtenbuchs für die Erhebung von Mobilitätsdaten im Eco-Feedback Kontext (Bachelorarbeit)
Bachelorthesis
[BibTeX] [Download PDF]@phdthesis{lawo_konzeption_2016, type = {Bachelorthesis}, title = {Konzeption und {Entwicklung} eines {Fahrtenbuchs} für die {Erhebung} von {Mobilitätsdaten} im {Eco}-{Feedback} {Kontext} ({Bachelorarbeit})}, url = {https://www.wineme.uni-siegen.de/wp-content/uploads/2016/11/Bachelorarbeit_DennisLawo.pdf}, author = {Lawo, Dennis}, year = {2016}, keywords = {Thesis, Bachelorthesis}, }
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Meurer, J., Lawo, D., Janssen, L. & Wulf, V. (2016)Designing Mobility Eco-Feedback for Elderly Users
Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems. New York, NY, USA, Publisher: ACM, Pages: 921–926 doi:10.1145/2851581.2851599
[BibTeX] [Download PDF]@inproceedings{meurer_designing_2016, address = {New York, NY, USA}, series = {{CHI} {EA} '16}, title = {Designing {Mobility} {Eco}-{Feedback} for {Elderly} {Users}}, isbn = {978-1-4503-4082-3}, url = {http://doi.acm.org/10.1145/2851581.2851599}, doi = {10.1145/2851581.2851599}, booktitle = {Proceedings of the 2016 {CHI} {Conference} {Extended} {Abstracts} on {Human} {Factors} in {Computing} {Systems}}, publisher = {ACM}, author = {Meurer, Johanna and Lawo, Dennis and Janssen, Lukas and Wulf, Volker}, year = {2016}, keywords = {a-paper, PRAXLABS, mobility, eco-feedback, behavior change, elderly adults, persuasive sustainability}, pages = {921--926}, }
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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}, }