Abstract
A custom service combination based on Business Process Execution Language was put forward. It mainly studied one-off recipient and keeping the business logic order unchanged. It was proposed a solution that made the serial workflow realize the local parallelism from three aspects such as message dependency, a directed acyclic graph to workflow, and the implicit message dependency. The algorithm of implementation was also discussed. A custom service combination application of ‘stocking house transactions’ and ‘stocking house mortgage’ showed the feasibility and validity of this algorithm. The system generates the BPEL by analyzing various business stakeholders’ Web Service Description Language interface thereby determining the dependence of each business order, together with maintaining the existing business logic. The BPEL enhances the local parallel processing, and makes the overall processing time reduced.
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