IMPACT, Improving and Motivating Physical Activity using ContexT, is a system that monitors and informs users about their physical activity and the context in which the activities happen. The system shows real-time information on a phone interface and historical information on a desktop and online interface. By contextualizing physical activity, the system increases users' awareness of their physical activity.
Ian Li, Anind K. Dey, Jodi Forlizzi
ACM Transactions on Computer Human Interaction, vol. 19(1), 2012 Mar, pp. 1-21