Fraunhofer-Institut für Angewandte Informationstechnik FIT

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Alexa, We Need to Talk: A Data Literacy Approach on Voice Assistants

2021 , Pins, D. , Jakobi, T. , Boden, A. , Alizadeh, F. , Wulf, V.

Voice assistants (VA) collect data about users' daily life including interactions with other connected devices, musical preferences, and unintended interactions. While users appreciate the convenience of VAs, their understanding and expectations of data collection by vendors are often vague and incomplete. By making the collected data explorable for consumers, our research-through-design approach seeks to unveil design resources for fostering data literacy and help users in making better informed decisions regarding their use of VAs. In this paper, we present the design of an interactive prototype that visualizes the conversations with VAs on a timeline and provides end users with basic means to engage with data, for instance allowing for filtering and categorization. Based on an evaluation with eleven households, our paper provides insights on how users reflect upon their data trails and presents design guidelines for supporting data literacy of consumers in the context of VAs.

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Toward transferability in grounded design: Comparing two design case studies in firefighting

2018 , Betz, M. , Wulf, V.

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Preface

2018 , Wulf, V. , Pipek, V. , Randall, D. , Rohde, M. , Schmidt, K. , Stevens, G.

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What Happened in my Home?

2017 , Castelli, N. , Ogonowski, C. , Jakobi, T. , Stein, M. , Stevens, G. , Wulf, V.

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

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Introduction: Socio-informatics-practice makes perfect?

2018 , Randall, D. , Rohde, M. , Schmidt, K. , Wulf, V.

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Research into design-research practices

2018 , Randall, D. , Dyrks, T. , Nett, B. , Pipek, V. , Ramirez, L. , Stevens, G. , Wagner, I. , Wulf, V.

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Epilogue: Socio-informatics: Intertwining analytical and design-oriented research into social practices

2018 , Pipek, V. , Randall, D. , Wulf, V.

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Grounded design: A research paradigm in practice-based computing

2018 , Stevens, G. , Rohde, M. , Korn, M. , Wulf, V.

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Integrated organization and technology development: A critical evaluation

2018 , Rohde, M. , Wulf, V.

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Mobility in Later Life

2017 , Stein, M. , Meurer, J. , Boden, A. , Wulf, V.

We present the results of a design case study focusing on supporting the daily transportation of elderly in Germany. We conceptualized, developed and studied the appropriation of a transportation information system intended to ease switching between different transportation modes. Based on a literature review and a context study with 21 interviews we explored routinized transport mode usage and barriers when switching between modes. Iteratively, we co-designed a transport platform accessible via a website, a mobile app, and an iTV app. We further looked at the appropriation of the platform into the daily lives of 19 persons. Studying the appropriation highlighted different factors that facilitate the adoption of alternative transport options. The factors included reducing uncertainty, complementing transport information with context information (e.g. weather) and providing informational access based on the user's preferences as well as fitting in with the situational needs (activity related).

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