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Human user interactions are currently not covered by the Web Services Business Processes Execution Language (WS-BPEL), which is primarily designed to support automated business processes based on Web services. In practice, however, many business process scenarios require user interaction. This paper describes scenarios where users are involved in business(More)
Business processes not only play a key role in business-to-business and enterprise application integration scenarios by exposing the appropriate invocation and interaction patterns; they are also the fundamental basis for building heterogeneous and distributed applications (workflow-based applications). Business Process Execution Language for Web Services(More)
Designing complex and large business processes requires a language that supports modularization and reuse in a portable, interoperable manner. This paper outlines an extension to WS-BPEL that allows for the definition of sub-processes that can be reused within the same or across multiple WS-BPEL processes. The paper describes different invocation scenarios(More)
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