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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.
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