关键词: Web服务, 语义本体, 功能属性, 服务组合, 联系图

Abstract: Web services composition method is one of the hot research issues. Most of previous work built a composite Web service by chaining the input and output of a Web service without considering the functional semantics of the Web service itself. Furthermore, with the rapid growth of Web services quantity, if every possible composition is considered, it will increase the complexity of the combination of services. The authors proposed a kind of graph model service composition method, established a description model of Web service semantic functional properties with the semantic association between the functional parameters. For those functional attributes related to the semantic Web services, a graph path search method was employed to finish the combination of services. It narrows the scope of participation in services composition and improves the efficiency and effectiveness.

Key words: Web services, semantic ontology, functional properties, service composition, relation graph