Research And Implementation Of Web Services Management Platform And Methods

In the Web services architecture, a UDDI registry plays the role for Web services publishing and discovery, as well as Web services management in some situations. But due to lack of commercially driving forces, the traditional and open UDDI registry does not work in the reality. Microsoft and IBM have shut down their public UDDI registries in 2006. However, there are various types of Web services open and available exist on the Internet, thus it is of great significance to acquire, organize and manage these unpublished Web services. In order to achieve the goal, our research team carried out a research project, i.e, the Web services engineering project, which is based on carwling Web services from Internet. By running the Web services crawler more than one year, we have obtained nearly 4000 Web services, which have also been tested and validated. The purpose of this paper is to build a Web services management platform, whose function is managing Web services by category and supporting implementations of Web services search, Web services testing, Web services invoking and Web services composition and so on. Furthermore, traditional methods used to find Web service in the UDDI registry rely on keywords and categorized catalogue, thus have low recall & precision ratios, which can not meet the increasing user requirements. This paper studies the methods of building Web services semantic index and carries out Web services Non-functional properties management to improve Web services precision and retrieval effiency. The main work and contribution of this paper are as follows:Firstly, this paper elaborates key technologies of Web services, and introduces related theory about Formal Concept Analysis and Web Services Graph. Secondly, in order to implement efficient Web services management and further research, combining our current work, we build a fundamental Web Services Management Platform, and study functions of collaborative operation process, classification management and update of Web services management platform from the managerial viewpoint. Thirdly, we make the best knowledge of Formal Concept Analysis for study functional properties management of Web services. We define Formal Context, Formal Concept and Web Services Lattice formally between Web services and input parameters (output parameters), and put forward some algorithms about how to generate Formal Concept, how to construct Web service lattice, as well as, study Web services semantic indexing, retrieval and composition by use of lattice structure. Fourthly, this paper studies Web services Non-functional properties management methods, including management contents, calculation and evaluation, management model, etc. Finally, we implement Web Services Management Framework prototype, which including the model of Web services functional properties management, the model of Non-functional properties management, the model of retrieval based on Web Services Lattice and the model of composition based on FCA.