Implementing BPEL4WS: the architecture of a BPEL4WS implementation: Research Articles

Authors:
Francisco Curbera;Rania Khalaf;William A. Nagy;Sanjiva Weerawarana
Affiliations:
IBM T. J. Watson Research Center, 19 Skyline Drive, Hawthorne, NY 10532, U.S.A.;IBM T. J. Watson Research Center, 19 Skyline Drive, Hawthorne, NY 10532, U.S.A.;IBM T. J. Watson Research Center, 19 Skyline Drive, Hawthorne, NY 10532, U.S.A.;IBM T. J. Watson Research Center, 19 Skyline Drive, Hawthorne, NY 10532, U.S.A.
Venue:
Concurrency and Computation: Practice & Experience - Workflow in Grid Systems
Year:
2006

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Abstract

BPEL4WS (BPEL in short) is a business process definition language built natively on top of the Web services application model. BPEL provides a workflow-oriented composition model for Web services applications, and is thus a central piece in the heavily componentized service-oriented computing model. BPEL results from the merger of two distinct process metamodels (the process algebra model of XLANG and the graph-oriented model of WSFL) into a coherent and powerful framework. Implementing BPEL thus presents significant challenges to middleware developers. This paper discusses those challenges and describes the design and architecture of the BPWS4J runtime, and a full implementation of the BPELWS 1.1 specification. Copyright © 2005 John Wiley & Sons, Ltd.