Urbanization is one of the major current trends in society. Cities around the world are looking into 'smart' solutions based on information and communication technology to deal with the challenges that result from this development. Mobility is one of the most important areas to address, and system-of-systems solutions where vehicles and infrastructure are connected have a potential to improve urban transportation in many aspects. In this paper, current initiatives related to mobility in smart cities around the world are surveyed, and this is complemented with input from focus groups of transportation stakeholders to identify the important aspects of the problem. Based on this, challenges related to the application of systems-ofsystems in urban mobility are identified.

We have built Drift, an application that measures and provides feedback on how far from the ideal path an orienteer has deviated, to study how sports apps can draw on real-time data to enrich sports activities. Orienteering is an outdoor navigation sport requiring mental skills and fast running through the terrain. Participants appropriated deviation into their practice and found new ways it could integrate with common orienteering practice. Interaction around deviation provided possibilities for new forms of sporting practice and social interactions. Deviation as a measure allowed this because it was highly specific and well-grounded in a specific skill of the sport. We believe this use of data in real time has the possibility of supporting and renewing sports activity as well as offering new opportunities for design.

HCI is increasingly paying attention to sports, and more and more CHI attendees are aiming to maintain being physically active while attending CHI. In response, we offer a SIG on the topic of sports-HCI and conduct it in a sportive way: we will go out of the conference venue and jog around San Jose while discussing the role of HCI in relation to sports. The goal is to actively shape the future of the field of sports-HCI.

We have conducted interviews with ten elite and recreational athletes to understand their experiences and engagement with endurance sport and personal and wearable sports technology. In the interviews, athletes emphasized the experiential aspects of doing sports and the notion of feeling was repeatedly used to talk about their activities. The technology played both an instrumental role in measuring performance and feeding bio-data back to them, and an experiential role in supporting and confirming the sport experience. To guide further interaction design research in the sports domain, we suggest two interrelated ways of looking at sports performances and experiences, firstly through the notion of a measured sense of performance, and secondly as a lived-sense of performance.

This work describes a method used in the development of a stroke rehabilitation tool. The method was based on three key elements. The first key element was iterations between the use of broad groups with different professionals/stakeholders and small hands-on working groups with users from the same profession. The second key element was movement between understanding differences between different organizations and professionals and understanding of specific needs within the different organizations. The final key element was including implementation aspects from the very start of the work.

This paper investigates user perceptions of continuous identity as agents migrate between different embodiments. It reports an experiment seeking to establish whether migrating or not migrating the interaction memory of the agent would affect the user's perception of consistent agent identity over different embodiments. The experiment involved a treasure hunt in which a virtual agent migrated from a screen to a mobile phone in order to accompany a user while they searched for clues. A total of 45 subjects took part in three different conditions with 15 subjects in each. The outcome showed that the presence of memory affected the competence users ascribed to the virtual agent. However it had no significant effect on a strong perception of consistent identity across multiple embodiments.

To explore how people manage and maintain life style change, we conducted interviews with eight members of different Twelve Step Fellowships with 2-23 years of recovery about how they maintain and develop their recovery in everyday life. They reported how identification, sharing, and routines are keys to recovery. Our lessons for design concerns how these concepts support recovery in a long term perspective: Sharing to contribute in a broader sense to the fellowship and to serve as an example for fellow members created motivation even after 20 years of recovery; reflecting over routines in recovery was essential since life is constantly changing and routines need to fit into everyday life; concrete gestures were helpful for some of the abstract parts of the recovery work, such as letting go of troubling issues. Design aimed to support maintenance of lifestyle change needs to open up for ways of sharing that allow users to contribute their experiences in ways that create motivation, and support users in reflecting over their routines rather than prompting them on what to do.