Design And Implementation Of Web Service Search And Execution Engine

Web service is a new web application, it is self-included,self-description and modularized application, which can be published,located and called by web. UDDI is the registration and discoveryindustry standard of Web service, which provides a foundation platformenvironment for Web service registry. Web service requester can choosethe appropriate Web service and integrate it to their application. Althoughthis method is widely used in the market, it has some difficulties in Webservice discovery. On the one hand, some Web service providers developand deploy Web service, but it’s not registered in the UDDI registry. Onthe other hand, when matching user’s queries in the service agent registrycenter by simple keyword match method, user can get much unrelatedWeb services as it can’t provide semantic information. These lead to missmany Web services and affect service recall.This thesis raises a new web service discovery system named Webservice search and execution system, which based on search engine technology. The system crawl pages on the Internet as the raw data. Itachieve Web service discovery function by a series of operations, such asparsing, extraction, indexing. This system also provides animplementation mechanism. When users find a specific executablecomponent, they can select web page and enter input data required,remote executable group member can return the results present them tothe user. In this paper, a semantic query expansion strategy is designedbased on the WordNet. This method can expand the user’s query and meetuser’s demands in the query stage. This paper also raises a rapidsegmentation algorithm, which is used on processing WSDL document.Compared UDDI registry, the results of experiment showed that thesework greatly improved the efficiency of Web service discovery.