OWL-S version 1.1 now available

From: David Martin (martin@AI.SRI.COM)
Date: 11/10/04

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    A new release of OWL-S, version 1.1, is now available at
    As noted on the release page, we encourage feedback from interested
    parties through the public-sws-ig@w3.org email list.
    As compared to version 1.0, this release features a good deal of
    evolution in the process model (Process.owl), particularly with
    respect to the use of variables, the organization of outputs and
    effects into conditional bundles called "Results", and the development
    of new constructs and practices for expressing conditions,
    preconditions and effects.  A new set of constructs is available for
    specifying dataflow, and a new control construct ("Perform") is
    available to specify service invocation within a composite process.
    (Many but not all of these changes have already been available for a
    while in the 1.1 Beta release.)  The profile and grounding ontologies
    have also seen some changes, although less extensive, and the
    documentation has undergone substantial revision.  A summary of other
    recent changes is given on the Status page.
    The core ontology files and examples are all expressed using valid OWL
    DL, and have been validated using tools such as the vOWLidator,
    WonderWeb, and Pellet.
    OWL-S is an OWL-based Web service ontology, which supplies Web service
    providers with a core set of markup language constructs for describing
    the properties and capabilities of their Web services in unambiguous,
    computer-intepretable form. OWL-S markup of Web services facilitates the
    automation of Web service tasks, including automated Web service
    discovery, execution, composition and interoperation.  OWL-S builds on
    the OWL Web Ontology Language Recommendation produced by the
    Web-Ontology Working Group at the World Wide Web Consortium.
    Previous releases of this language were known as DAML-S, and were built
    upon DAML+OIL (the predecessor of OWL).
    This release represents work by members of the OWL-S Coalition as well
    as much-appreciated help from several interested non-members.
    Contributors are listed on the release page.
    David Martin

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