The long-term planner is a large display that visualizes entangled family schedules and provides shared tangible interaction when scheduling new appointments; the coordination watch is a mobile device that allows distributed haptic interaction when changing appointments. At home, the family uses the long-term planner for fitting new appointments in the shared family routines. In mobile situations, the personal coordination watches are used for ad-hoc fine-tuning of previously made appointments.
Source: Hoefnagels, S., Geelhoed, E., Stappers, P. J., Hoeben, A., and van der Lugt, R. 2004. Friction in scheduling and coordinating lives of families. In Proceedings of the Conference on Designing Interactive Systems Processes, Practices, Methods, and Techniques (DIS’04). ACM Press, 321–324.
http://www.behance.net/gallery/Frictionless-Mobile-Lifestyle/5607491
