Research On Web Service Composition Model And Related Technologies

With the mushroom of the network technology and its application, user's requirements were enhanced. Thus, various services which were able to satisfy all requirements effectively were expected. For enterprise how to compose congruous and available new services, based on the new requirements in the new Internet environment, utilizing those legacy resources has become a challenging problem needing to be resolved imminently. The problem (Web service composition) is the result of demand-driven.In the field of Web service composition, some research has been expanded, but there is lack of completed description to the model, and the research to the architecture of the model is limited to satisfying the aim of service composition, the research on Web service structure conflicts and scheme evaluation/ optimization has also rarely been reached. Weaknesses in these two aspects hamper the wide deployment of WSC. How to resolve these issues ideally is an open problem.First of all, this paper defines the basic notion, summarizes the initial research and the actuality in related domains. Secondly, a common and completed framework model has been established, and describes a connector with software architecture view. This model has included a common and integrated abstract framework model, and had provided a basis for further research. Subsequently, the author provide a improved algorithm for checking correctness of Web Service Composition structure, it checks the feasibility of selected Web services; finally, based on the HTN and network plan, author has focused on the evaluation/optimization composition scheme, it has provided a basis for Web service choice.