Contrats de contexte pour la gestion de contexte répartie

In ambient computing environments, applications need to monitor their execution context and react to changes in their environment. The distribution of context data poses great challenges to researchers. In this paper, we focus in the modeling of the distribution of context data. A model of the distribution of context data allows the expression of context constraints and the delivery of unambiguous context information between providers and consumers, and the context management service, and between the various components of the context management service. We argue that the managament of context data distribution can be achieved by establishing context contracts. For this purpose, we propose a model of context contract and use Distributed Events Based Systems (DEBS) as an appropriate Copyright is held by the author/owner(s) UbiMob 2013, 5–6 juin 2013, Nancy, France. interaction model for building asynchronous communication between providers and consumers of context information.