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Keywords:

  • scientific workflows;
  • business workflows;
  • Web services composition and orchestration;
  • explicit and implicit lifetime;
  • BPEL;
  • BPEL4WS;
  • Grids;
  • OGSA;
  • OGSI;
  • WSRF;
  • WSDL;
  • SOAP

Abstract

This paper discusses the benefits and challenges of using BPEL4WS in Grid environments. In particular, we look at how BPEL4WS built-in extensibility can be used to facilitate execution of BPEL-based workflows in OGSI- and WSRF-based Grids. Copyright © 2005 John Wiley & Sons, Ltd.