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Tool support (cont')

  • Choreography and Orchestration
    • OWL-S assumes invocation of services as atomic actions (choreography is not modeled)
    • Process-model allows services to be attached to the atomic but also composite processes thus allowing hierarchical control-flow oriented decomposition (i.e. ordering over atomic processes)
    • OWL-S VM is executes the atomic processes up to the completion of the composite process description.
    • OWL-S VM fulfills the basic role of an orchestration engine.
  • Mediation
    • No first-class support for data and process mediation.
  • Composition
    • Abstraction of service interactions to atomic ones and its simple model of composite processes are good fit to existing (AI planning-based) techniques.

Speaker notes:

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