A distributed P2P-based architecture for semantic Web services discovery and composition

Web services paradigm is considered as the most prevailing instantiation of the service-oriented computing. This computing technology can he used potentially to compose new distributed collaborative applications and make easy the development of more complex Web processes. In this context, other representatives computing technologies, such as peer-to-peer (P2P), have also adopted the service-oriented approach and exposed functionalities as services. Recently, Web services based on P2P computing require special attention from collaboration and interoperability in a distributed computing environment. In this paper, we present a distributed architecture for semantic Web services automatic composition through a P2P network This architecture implements a pure distributed solution based on epidemic discovery algorithms to discover semantic Web services in unstructured Peer-to-Peer networks. However, a centralized base in this solution contains ontologies r fields helping different peers to develop semantic descriptions for their Web services.