Experience with adapting a WS-BPEL runtime for eScience workflows

Abstract

Scientists believe in the concept of collective intelligence and are increasingly collaborating with their peers, sharing data and simulation techniques. These collaborations are made possible by building eScience infrastructures. eScience infrastructures build and assemble various scientific workflow and data management tools which provide rich end user functionality while abstracting the complexities of many underlying technologies. For instance, workflow systems provide a means to execute complex sequence of tasks with or without intensive user intervention and in ways that support flexible reordering and reconfiguration of the workflow. As the workflow technologies continue to emerge, the need for interoperability and standardization clamorous. The Web Services Business Process Execution Language (WS-BPEL) provides one such standard way of defining workflows. WS-BPEL specification encompasses broad range of workflow composition and description capabilities that can be applied to both abstract as well as concrete executable components.

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