Research On Web Services Composition In Network Manufacturing Environment

With the rapid development of network and manufacturing, system integration inside the business enterprise already cannot meet intensive business needs. Web services is a new type of loose coupling, cross-platform distributed computing technology. Effective integration of resources, data, application and ability of different enterprises under network manufacture environment can be realized by using Web services technology for networked manufacturing and production. But lack of semantic information the description of traditional Web Services cannot be understanded by computer, matching and compositing services from a large number of services is difficult to finish. In order to solve the matching and composition problems of manufacturing services, this article introduces the semantic web, and realizes network manufacturing based on semantic service by adding semantic markup for manufacturing services. By using the technologies, services of matching and compisiton can be finished automatically.Under network manufacturing environment, the paper studies the semantic Web service compositon. Firstly, a semantic service compostion model is put forward. Web service is a functional encapsulation of hardware and software package. SOA(Service Oriented Architecture) can be realized by usable Web service, and it is a kind of coarse granularity, loose coupling software architecture.The different services communicate by simple, accurate definition interface do not involve the underlying programming interface and communication model. Ontology is a conceptual model to describe properties and relations between concepts. Semantic is described through the relation among the concept. The model make Web services composition contain semantic function by adding ontology in SOA architecture.Then, a kind of exist matching algorithm of semantic Web service was well improved. Analysis and research on the semantic Web service description, discovery, composition and executive has in-depth been done, and the original matching algorithm was improved to more level and made matching process more precise.Finally, this model in the background of network manufacturing environment was confirmed, and a network manufacturing resource domain ontology of network manufacturing environment was established, and a kind of reason function on the resource domain ontology was verified. These atomic services was composited to complex service on the base of business process of network manufacturing, and the validity and rationality of the model was verified by doing a lot of experiments.