Pieces of identity

We describe the motivation, design, and deployment of the Pieces of Identity system. Two goals motivated the system: to provoke a discussion concerning the relationship between privacy and mobile information technology during an inauguration event of a mobile technology research center, and to stir reactions contributing to the widening of the design space of privacy and information and communication technology (ICT). The results contrasts the two well-established preconceptions about privacy that nothing is private anymore and that personal information is best locked away

Values in Design - Building Bridges between RE, HCI and Ethics

Part 1: Long and Short PapersInternational audienceDesigning for values has become increasingly important for technology development. In many technological systems (medical applications, social networks etc.) values (privacy, autonomy, trust etc.) play a role and are sometimes violated. In working with stakeholder requirements or user needs, various design methods in requirements engineering (RE) [3] and human computer interaction (HCI), in specific user-centered (UCD), deal with “soft issues” [4], “social issues”, “people issues” or values. At the same time, applied ethics has begun to pay attention to design. We believe that many of the approaches could complement each other in useful ways. The aim of this workshop is to bring together people from different disciplines to share knowledge and insights about how to account for values in technology design, and to work towards integrating approaches, thereby putting value conscious design approaches (e.g. values-in-design [1] or value sensitive design [2]) to practice

Probing the potential of non-verbal group communication

Designing for non-verbal communication using e.g. gestures and other bodily expressions is difficult. Hardware and software need to be co-designed and harmonize in order to not throw users out of their embodied experience. We aim to design for kinaesthetic expressions of emotion in communication between friends - in this case, colleagues at work. A probe was built using sensor node technology designed to let users express themselves and their emotional state to a public and shared display where the expressions together formed a collective art piece expressing the individuals but also the group as a whole. Two groups of colleagues used the probe during two weeks. It came to serve as a channel in which some conflicts and expressions of social relations were acted out which were not openly discussed in the office. It exposed different roles and balances in relationships in the group. Finally, the probe taught us the importance of balancing the design for joint group expression and individual, personal expressions. The study also allowed the participants to experience the sensor node-'material' - enabling a participatory design process

Designing interfaces for explicit preference elicitation: A user-centered investigation of preference representation and elicitation process

Two problemsmay arisewhen an intelligent (recommender) system elicits users’ preferences. First, theremay be amismatch between the quantitative preference representations in most preference models and the users’ mental preference models. Giving exact numbers, e.g., such as “I like 30 days of vacation 2.5 times better than 28 days” is difficult for people. Second, the elicitation process can greatly influence the acquired model (e.g., people may prefer different options based on whether a choice is represented as a loss or gain). We explored these issues in three studies. In the first experiment we presented userswith different preference elicitationmethods and found that cognitively less demanding methods were perceived low in effort and high in liking. However, for methods enabling users to be more expressive, the perceived effort was not an indicator of how much the methods were liked.We thus hypothesized that users are willing to spend more effort if the feedback mechanism enables them to be more expressive.We examined this hypothesis in two follow-up studies. In the second experiment, we explored the trade-off between giving detailed preference feedback and effort. We found that familiarity with and opinion about an item are important factors mediating this trade-off. Additionally, affective feedback was preferred over a finer grained one-dimensional rating scale for giving additional detail. In the third study, we explored the influence of the interface on the elicitation process in a participatory set-up. People considered it helpful to be able to explore the link between their interests, preferences and the desirability of outcomes. We also confirmed that people do not want to spend additional effort in cases where it seemed unnecessary. Based on the findings, we propose four design guidelines to foster interface design of preference elicitation from a user view.Intelligent SystemsElectrical Engineering, Mathematics and Computer Scienc

Elicitation of situated values: Need for tools to help stakeholders and designers to reflect and communicate

Explicitly considering human values in the design process of socio-technical systems has become a responsibility of designers. It is, however, challenging to design for values because (1) relevant values must be identified and communicated between all stakeholders and designers and (2) stakeholders’ values differ and trade-offs must be made. We focus on the first aspect, which requires elicitation of stakeholders’ situated values, i.e. values relevant to a specific real life context. Available techniques to elicit knowledge and requirements from stakeholders lack in providing the context and means for reflection needed to elicit situated values as well as an explicit concept of value. In this paper we present our design of a tool to support active elicitation of stakeholders’ values and communication between stakeholders and designers. We conducted an exploratory user study in which we compared the suitability of methods used in social sciences for (1) eliciting situated values, (2) supporting people’s expressions of values and (3) being implemented in value elicitation tool. Based on the outcomes we propose a design for a value elicitation tool that consists of a mobile application used by stakeholders for data collection and in-situ self-reflection, and a website used collaboratively by designers and stakeholders to analyse and communicate values. Discussion focuses on contributions to value sensitive designIntelligent SystemsElectrical Engineering, Mathematics and Computer Scienc