2012•Advanced materials researchOpen access

A Study of BPEL-Based Framework for Optimal Composition of Dynamic WEB Services

Ling Fang Wang, Wu Gao

Abstract

Based on BPEL,Web services can be composed into complex business process. However, BEPL does neither support to modify Web services during the execution of business process nor provide the mechanism of optimal service. In order to solve these problems, this paper gives a dynamic Web services optimal composition framework grounded on the BPEL and QoS. By using the dynamic binding function of QoS components and the dynamic UDDI discovery of Web service, the business process run-time dynamic selection of Web service will be realized. Web service optimal composition is implemented by Froyd’s shortest path algorithm. So the efficiency in execution of business process will be improved as well.

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Key concepts: Business Process Execution Language, Web service, Computer science, WS-Policy, Dynamic web page, Business process, Web modeling, Quality of service