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Design Principles (contd')

  • Execution Semantics 
    • In order to verify the WSMO specification, the formal execution semantics of reference implementations like WSMX as well as other WSMO-enabled systems provide the technical realization of WSMO
  • Service versus Web service 
    • A Web service is a computational entity which is able (by invocation) to achieve a users goal. 
    • A service in contrast is the actual value provided by this invocation 
    • WSMO provides means to describe Web services that provide access (searching, buying, etc.) to services; WSMO is designed as a means to describe the former and not to replace the functionality of the latter

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