Dynamic Context Monitoring Service for Adaptive and Context-Aware Applications

The contribution of this paper is a novel service architecture for facilitating the development of context-aware applications in heterogeneous distributed environments. The requirements, architecture and functional validation of the architecture are contributed. The research problem addressed in the paper is dynamic acquisition and representation of context information and its efficient provisioning for applications via a software service architecture. The approach taken in the paper is to introduce a service architecture called context monitoring service (CMS) that provides a dynamically evolving semantic model of context information that the applications can access in order to react to changes in the context. The CMS architecture is functionally validated in two experimental system implementations including the CMS service prototype and exemplary facility surveillance applications utilizing the CMS service.