Contract-based web service composition framework with correctness guarantees

  • Authors:
  • Nikola Milanovic

  • Affiliations:
  • Humboldt University, Berlin

  • Venue:
  • ISAS'05 Proceedings of the Second international conference on Service Availability
  • Year:
  • 2005

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Abstract

We present formal and practical foundations for Web service composition framework with composition correctness guarantees. We introduce contractual composition model based on two isomorphic description models: Contract Definition Language (XML) and abstract machines (formal notation). Composition operators (patterns) are used to perform composition which is then formally verified with respect to properties described in service contracts. We also describe Java-based implementation of the system, concentrated around Sun's Java Web Services Development Pack (JWSDP).