| 摘要 |
An apparatus and method for coordinating web services using a role based interpretation of coordination plans are provided. A primary web service is initiated that requires the collaboration of one or more secondary web services. A coordinator of the primary web service provider identifies a coordination plan for performing the primary web service and determines the roles necessary for completing the primary web service. The coordinator identifies specific secondary web service providers to fill the roles of the coordination plan, from a registry of web service providers. The coordinator then sends a request to the coordinators of these secondary web service providers asking that they participate in the collaboration to achieve the primary web service. If the coordinators of the secondary web service providers accept the invitation to participate in the collaboration, the coordinator of the primary web service provider forwards the coordination plan to the secondary web service providers along with an identification of the secondary web service provider's role in the coordination plan. Thereafter, the primary and secondary web service providers interact with one another and provide their services in accordance with the coordination plan.
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