Device Context Discovery System for Context-Aware Services in Ubiquitous Device Collaboration Environment

This paper describes a system for obtaining and describing device context information such as device capabilities and user preferences for context-aware services in the ubiquitous device collaboration framework called Celadon. The proposed system is designed to gather and manage device properties and user profiles from devices, and to provide generalized access methods for manipulating static and dynamic properties of the devices. We present the architecture of the proposed system within the overall Celadon framework and describe the functions of each component in more detail and present our current prototypes