The Research Of Semantic Web Services Composite In Enterprise Application Integration

With the development of the enterprise information system and the computer technology, EAI (Enterprise Application Integration) has become the focus of enterprise. Web service, a new distributed compute technology, becomes the main way for application integration of enterprises. 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 keywords to search for services. Web service 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, invoke 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 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 them.Based on the whole system framework, the paper designs and realizes the semantic web service registry center. First we point out the lacks of semantics of UDDI, present the description model of semantic web service and bring forward an OWL-S/UDDI matchmaker framework. After we talk about the functional structure of the semantic web services, then we analyze and design the description model of Web Services in extending UDDI, including semantic-extended and domain ontology. Finally we give the detail description of realization of extending UDDI, public port and inquiry port etc.Talking about web services composition and proposing a method of web services choosing, it can enhanced the quality of web services composition . Furthermore, proposing a model of service quality ,it also can enhanced the quality of web services composition. These works are referable for other semantic related research in some other areas. Conclusting this paper and prospecting for the semantic web services composition .