UPM: User-Centered Privacy Model in Pervasive Computing Systems

The fact that pervasive systems are typically embedded or invisible, making it difficult for users to know when these devices are collecting data. So privacy appears as a major issue for pervasive computing applications. In this paper we propose a user-centered privacy model (UPM) which provides user control over data, identity, location, and time privacy with less than 10% of unobtrusiveness.