Semantic Web Service Discovery Research

With the rapid development of internet technology, the application of Web service is becoming more and more popular. Firstly, We research the concept of Web services, service architecture and technical specifications, Secondly, We also study the Semantic Web concepts and architecture. Thirdly OWL-S is the service-oriented language which describes web service semantics from ontology perspective. From the ontological point of view around the Service Profile, the Service Model, the Service Grouding has been explored and studied.Focused on semantic Web service matching mechanism studies, semantic matching mechanism was improved based on previous works in this paper, and a semantic Web services matching mechanisms with flexibility character was achieved. This study provides a reliable searching service for users.In the Semantic Web services, though some description of service quality parameters are included in OWL-S, such as quality assurance etc, but a better description of Web service QoS model is still lacking. On the other hand, the static factor of services quality is considered in researching on semantic Web service quality, but the dynamic changes of service QoS information is more. the semantic Web service matching algorithm based on QoS constraints has been proposed, which was base on the study of the semantic Web service QoS description model and has fully considered the service QoS information.