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Modeling Web Services Composition with Transaction Extension for Performance Evaluation

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4 Author(s)
Yanxiang He ; Sch. of Comput., Wuhan Univ., Wuhan ; Liang Zhao ; Wu, Zhao ; Fei Li

Web services can be composed to build domain-specific application and solution. The standards of several Web services composition (WSC) are proposed, for example, WS-BPEL and WS-CDL. Moreover, there is a great demand for the performance optimization of WSC recently. However, WS-BPEL lacks formal semantics, so it is very difficult to verify WSC and evaluate the performance of WSC. Therefore, considering such situation and long-running transaction (LRT) in WS-BPEL, in this paper, we adopt general stochastic high-level Petri net (GSHLPN) as basic formal description tool of WSC based on WS-BPEL and model the context of LRT. Our approach can provide a more real environment for evaluating and optimizing the performance of WSC based on WS-BPEL.

Published in:

Asia-Pacific Services Computing Conference, 2008. APSCC '08. IEEE

Date of Conference:

9-12 Dec. 2008