A Reflexive Infrastructure for Context-Aware Applications

Context-aware applications use information from their surrounding environment to adapt their behavior. This paper proposes a reflexive, loose-coupled, event-based infrastructure named CxFramework to aid the development of such complex applications. CxFramework is composed of several kinds of services. Context information is modeled using ontologies from which higher-level context information can be inferred. The details of context acquisition and processing are transparent to the developer. Implementation aspects of the prototype are discussed and a performance analysis is presented to show its viability.