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Design Principles (contd')

  • Centrality of Mediation
    • Complementary design principle to strict decoupling
    • Mediation addresses the handling of heterogeneities that naturally arise in open environments
    • Heterogeneity can occur in terms of data, underlying ontology, protocol or process. 
    • Mediation a first class component of the WSMO framework
  • Ontological Role Separation 
    • Users, or more generally clients, exist in specific contexts which will not be the same as for available Web services
    • The underlying epistemology of WSMO differentiates between the desires of users or clients and available services
  • Description versus Implementation
    • WSMO differentiates between the descriptions of Semantic Web services elements (description) and executable technologies (implementation)
    • WSMO aims at providing an appropriate ontological description model, and to be complaint with existing and emerging technologies

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