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    Dennis Lawo

    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

    2021


    • Lawo, D., Neifer, T., Esau, M., Vonholdt, S. & Stevens, G. (2021)WITHDRAWN: From Farms to Fridges: A Consumer-Oriented Design Approach to Sustainable Food Traceability

      IN Sustainable Production and Consumption, Vol. 27, Pages: 282–297 doi:10.1016/j.spc.2020.11.007
      [BibTeX] [Abstract] [Download PDF]

      This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.

      @article{lawo_withdrawn_2021,
      title = {{WITHDRAWN}: {From} {Farms} to {Fridges}: {A} {Consumer}-{Oriented} {Design} {Approach} to {Sustainable} {Food} {Traceability}},
      volume = {27},
      issn = {2352-5509},
      shorttitle = {{WITHDRAWN}},
      url = {https://www.sciencedirect.com/science/article/pii/S2352550920313816},
      doi = {10.1016/j.spc.2020.11.007},
      abstract = {This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.},
      language = {en},
      urldate = {2021-04-16},
      journal = {Sustainable Production and Consumption},
      author = {Lawo, Dennis and Neifer, Thomas and Esau, Margarita and Vonholdt, Stephanie and Stevens, Gunnar},
      month = jul,
      year = {2021},
      pages = {282--297},
      }


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

      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


    • 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},
      }


    • 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},
      }


    • 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, ICT, co-evolution, consumer informatics, practice theory, vegan},
      pages = {5184},
      }


    • 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‘

      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 = {Community, Learning, Sustainability, italg, Food, Grassroots, HFI, Sustainable HCI},
      pages = {1--4},
      }


    • 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


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

      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

      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},
      }


    • Meurer, J., Lawo, D., Pakusch, C., Tolmie, P. & Wulf, V. (2019)Opportunities for Sustainable Mobility: Re-thinking Eco-feedback from a Citizen’s Perspective

      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},
      }


    • 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},
      }

    2016


    • Meurer, J., Lawo, D., Janssen, L. & Wulf, V. (2016)Designing Mobility Eco-Feedback for Elderly Users

      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 = {PRAXLABS, mobility, behavior change, eco-feedback, elderly adults, persuasive sustainability, a-paper},
      pages = {921--926},
      }


    • 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},
      }


    • 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},
      }