Orchestrate Legacy Programs in Grid

With the development of Grid Technologies, Many researches and projects have done to deploy and integrate legacy programs into service-oriented Grid architecture. However, the legacy programs orchestration is still scarce of good approaches. In this paper, we overviews the architecture and legacy program execution mechanism of CGSP, presents an abstract workflow specification named ChinaGrid Workflow Description Language (CGWDL) which can be transformed into BPEL, and depicts the life cycle of legacy programs orchestration based on CGSP. An image processing application is used to validate the feasibility and efficiency of our solution.

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