From: David Martin (martin@AI.SRI.COM)
Date: 07/27/04
A new BETA release of OWL-S, version 1.1B, is available at http://www.daml.org/services/owl-s/1.1B/ As noted on the release page, we encourage feedback from interested parties through the public-sws-ig@w3.org 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 http://www.daml.org/services/owl-s/1.1. 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. Regards, David Martin
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