The Application Study Of Fuzzy Approach In Workflow System Based On Web Services

Wokflow is the core technology for the enterprise to process modeling, simulating & analyzing, optimizing and managing & integrating so as to realize auto of business. Workflow system achieves internal enterprise organizations, departments' coordination, brings external customers and business partners into management platform, and creates a closely integrated, cooperated and dynamic adjusted collaborative environment system. However, the early workflow products are not suitable for inter-department, inter-organization, and cross-platform distributed applications.With the proposal of web service technology, the idea of bringing software into the service filed has attracted eyes of the modern people. Web Service becomes the first choice to solve heterogeneous systems integration with the advantages of---good open, interoperability, language and platform independence, etc.Firstly, this article analyzes related technology of workflow and Web Service and points out shortcomings of Web Service discovery at present, such as too much manual participation of inquiry based on key works and the immature of semantic Web Service. While this article applies a fuzzy method to find Web Service, which proposes Web Service vector space generation method after fully analyzing current documentation of WSDL, studies and compares several algorithm of term weighting. We use the improved mutual information to select term set in order to avoid entrance of the low amount information into term set. According to the generated vector spaces, fuzzy clustering of Web Service can be done. Based all the above, an algorithm to discover Web Service using a fuzzy approach in the generated vector spaces is presented.Secondly, the article expands the original Web Service workflow model and introduces above fuzzy approach of web service inquiry which helps to realize good distributed heterogeneous systems integration and enhance the accuracy of Web Service inquiry. We present FWSWflow structure and analyze the function of each part, especially the core formation of Workflow engine. Finally, Web Service workflow system can used in the logistics for cross-organizational business. We could take a hierarchical model structure to develop system and then the function of the system is clear and helps realization of some function of the system.