Research Of The Semantic Web Service Matching And Discovery Mechanisim In Application Integration

With the development of the enterprise information system and the computer technology, EAI (Enterprise Application Integration) has become the focus of enterprise. Whereas web service, a new distributed compute technique, becomes the main way for application integration of enterprise. Based on the widely-accepted internet standard protocol, web service can efficiently cooperate heterogeneous application systems on different platforms.However, current web service lacks of explicit semantics. It can only use key words to search for services. Web services fails to enable semantic representations of business relations, contracts and business rules in a machine-understandable way. At present, the development of semantic web provides a chance for web service. Using semantic web, all information on the network has their semantics. Thereby, the machine can understand and deal with the information. Combining the character of loose couple of web services with the semantic information provided by semantic web, we can match, find, involve web services automatically, so as to build and execute business process dynamically. As a result, we can integrate the application systems from different enterprises better.The paper takes the building of hospital information as background and presents system architecture of Semantic Web Service-based Enterprise Application Integration Platform (SWSEAIP). The system based on some given field extend UDDI from the angle of syntax and semantic, in order to provide a more complete description of web services for providers of web services. And the system provides the whole process from modeling and task decomposition to choosing the services dynamically and executing themBased on the whole system framework, we point out the lacks of semantics of traditional UDDI, present the description model of semantic web service, extend the traditional UDDI in terms of semantics and bring forward an OWL-S/UDDI matchmaker framework and propose a semantic-based web service selection method with high effectivity. Finally, the paper demonstrates an operation flow of the hospital testifies the selection method's application value in practice of the system...