Ontology Alignment for Contract Based Virtual Organizations Negotiation and Operation

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The cooperation of diverse partners carried out in Grid Virtual Organizations (VOs) requires clear specification of each party’s capabilities and obligations. The negotiation and enactment of contracts, underpinned by Service Level Agreements (SLAs), is essential for establishing a VO. This paper describes how semantic technologies can simplify this task by employing ontology alignment methods. The application of these techniques is placed in the context of the European Union’s Gredia Project and its journalism-related pilot application.