Carnegie Mellon University
The authors describe the design of privacy controls and feedback mechanisms for contextual IM, an instant messaging service for disclosing contextual information. They tested their designs on IMBuddy, a contextual IM service they developed that discloses contextual information; including interruptibility, location, and the current window in focus (a proxy for the current task). They deployed their initial design of IMBuddy's privacy mechanisms for two weeks with ten IM users. They then evaluated a redesigned version for four weeks with fifteen users.