Graph-based approach for interference free integration of pervasive applications

Smart-space modeling is a fundamental requirement towards the achievement of safe integration of pervasive systems and devices. Traditional behavior models lack explicit representation of rich semantic for ubicomp systems. We propose a graph-based model supporting ubicomp´s computational, physical, user and temporal contextual information. The model is part of a solution to tackle the interference problem, which results from unexpected interactions involving users and entertainment, communication, and health-related devices. This is a major concern when, for instance, daily routines are affected by different types of applications. The proposed graph-based interference detection is integrated in the Safe Home Care reflective platform, and allows reifying system´s state and simulating home care scenarios. A set of home care scenarios are used to assess the applicability and correctness of our approach.