Augmenting semantic web service descriptions with compositional specification

  • Authors:
  • Monika Solanki;Antonio Cau;Hussein Zedan

  • Affiliations:
  • The Gateway, Leicester, UK;The Gateway, Leicester, UK;The Gateway, Leicester, UK

  • Venue:
  • Proceedings of the 13th international conference on World Wide Web
  • Year:
  • 2004

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Abstract

Current ontological specifications for semantically describing properties of Web services are limited to their static interface description. Normally for proving properties of service compositions, mapping input/output parameters and specifying the pre/post conditions are found to be sufficient. However these properties are assertions only on the initial and final states of the service respectively. They do not help in specifying/verifying ongoing behaviour of an individual service or a composed system. We propose a framework for enriching semantic service descriptions with two compositional assertions: assumption and commitment that facilitate reasoning about service composition and verification of their integration. The technique is based on Interval Temporal Logic(ITL): a sound formalism for specifying and proving temporal properties of systems. Our approach utilizes the recently proposed Semantic Web Rule Language.