Peer To Peer Context Data Sharing Through Tuple Spaces

A requirement of pervasive computing systems is context data sharing among software components that collaborate in providing services to users. The solution to this requirement becomes more challenging when the communication scenario is peer-to-peer, i.e. the context data are distributed among components, rather than be held by a centralized server. This paper faces the context data sharing issue proposing a software architecture that realizes a distributed context space by a tuple space. Moreover, the context data are represented using an ontology, described in the Web Ontology Language, thus the system can be seamless integrated with the Semantic Web technologies.