An Intelligent Broker for Context-Aware Systems

We describe Context Broker Architecture (CoBrA) - a new architecture for supporting context-aware systems in smart spaces. Our architecture explores the use of Semantic Web languages for defining and publishing a context ontology, for sharing information about a context and for reasoning over such information. Central to our architecture is a bro- ker agent that maintains a shared model of the context for all computing entities in the space and enforces the privacy poli- cies defined by the users and devices. We also describe the use of CoBrA in prototyping an intelligent meeting room.