GROUP '01 Proceedings of the 2001 International ACM SIGGROUP Conference on Supporting Group Work
Using the Experience Sampling Method to Evaluate Ubicomp Applications
IEEE Pervasive Computing
PocketNavigator: vibro-tactile waypoint navigation for everyday mobile devices
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
Usability of a mobile, group communication prototype while rendezvousing
CTS'05 Proceedings of the 2005 international conference on Collaborative technologies and systems
Proximity sensor: privacy-aware location sharing
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
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Visiting crowded places at night in a group of friends is a common leisure activity in many parts of the world. However, the chaotic nature of such place makes it difficult to keep the group together. Constantly watching out for the others or frequent use of technology (e.g. phone calls or Google Latitude) may be contradictory to the idea of having a jolly night out. We therefore designed FriendSense, a mobile application that acts as a pervasive anchor to one of the friends. Beyond existing solutions it allows to continuously sense the anchored friend's location through vibro-tactile feedback. In a preliminary field study we investigated how this added sense affects a night out at an Oktoberfest-like festival. We found evidence that FriendSense users were more confident and less stressed with keeping the group together.