A Framework for Quality of Context Management

Abstract. Context-aware computing has to deal with a huge amount of context data. Taking into account the quality of these data becomes a corner stone of an efficient context management solution. Information on the quality of context helps taking appropriate decisions and allows to identify uncertain context information saving processing time for de-riving a pertinent description of the observed phenomenon. This paper presents a work in progress for integrating Quality of Con-text in COSMOS (COntext entitieS coMpositiOn and Sharing) [4,13], a component-based framework for managing context data in ubiquitous environments, and illustrates it throughout the example of the composi-tion of context information to implement a network connectivity vs energy adaptation situation. Key words: context-aware computing, quality of context, component-based middleware.