New Beta release of OWL-S (1.1B) available

From: David Martin (martin@AI.SRI.COM)
Date: 07/27/04

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    A new BETA release of OWL-S, version 1.1B, is available at
    As noted on the release page, we encourage feedback from interested
    parties through the email list.
    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.  A summary of other recent changes is given on the
    Status page.
    As a BETA release, this release is incomplete in some respects (some
    documents are not yet finished) and there are a few technical issues
    under discussion that could lead to additional changes in the 1.1 full
    release. However, we do not anticipate any major technical changes
    between this release and the full release.  The full release is expected
    to be announced in August.
    The core ontology files and the Bravo Air example are all expressed
    using valid OWL DL, and have been validated using tools such as the
    vOWLidator, WonderWeb, and Pellet. The materials on this release site
    have been frozen (with the possible exception of status.html), and
    further evolution towards the full release will take place at
    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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