The Research And Application Of OGSA Of Grid Model Based On Web Service-Grid Service Model Of Multi-Agent

Nowadays, Grid becomes an important information technology in the world, which aims to realize high performance resource sharing or cooperation and eliminate information and Resource Island. The Grid not merely offers the environment of utilizing the strong computer to solve the enormous challenge problem, but also a kind of foundation which organizes the remote resource and equipment distributed in all parts into a united whole.OGSA(Open Grid Service Architecture) that is called the next generation Grid architecture is a distributed architecture frame on the base of Grid Service. OGSA gives emphasis to location transparency and multiple protocol bindings for service instance, supports integration with underlying native platform facilities. The birth of OGSA indicates that Grid is not only used in scientific computing area, but also used to provide wide, fundamental network environmental support to commercial applications. So, more convenient information sharing and interaction are implemented. An ideal grid service should be similar to present Web service. It builds on hardware and software platform an present, offers the totally transparent computing environment to user.Agent technology is used in artificial intelligence area wide. It can run one computer or a kind of the same quality system. It has the characteristic of autonomy, accommodate, alternation, these characteristic can guarantee web service performance, especially for improving service detection mechanism.Firstly out content describe Grid concept, Grid character, Grid operation,introduce Grid system framework particularly, the realization of the grid service interface and operating mechanism of OGSA are analyzed, which includes the mechanism of Factory, Lifecycle, Handle Map, Service Data, Notification, etc. Secondly introduce software agent mechanism; mainly describe the agent system framework, multi-agent aptitude character, agent system framework, multi-agent system and the advantage of agent technique. Based on Grid technique and agent technique, we design multi-agent Grid service model, but agent alternation is use web service, so we introduce the technique of Web service model, last based on this model, combine with software engineering, we describe some modules of this model and implement agent cooperation using web service.