A novel service architecture for personalized context aware services

Personalized context-aware services (PCAS) provide advanced services depending on user contexts that are collected from ubiquitous sensor networks (USNs). To facilitate PCAS, we propose a novel service architecture that focuses on extensibility, reusability, scalability, and user-friendliness. The proposed architecture allows efficient user context and task management by introducing semantic map. We detail the PCAS architecture and service creation/activation procedures. Moreover, we introduce the PCAS testbed that is being built to assess the feasibility of PCAS.