OWL-S 1.2 Release

OWL-S is a OWL-based Web service ontology, which supplies Web service providers with a core set of constructs for describing the properties and capabilities of their Web services in unambiguous, computer-intepretable form. OWL-S markup of Web services will facilitate the automation of Web service tasks, including automated Web service discovery, execution, composition and interoperation. Following the layered approach to markup language development, the current version of OWL-S builds on the Ontology Web Language (OWL) Recommendation produced by theWeb-Ontology Working Group at the World Wide Web Consortium.

This page contains a version of the OWL-S ontology developed by a group of Semantic Web researchers (the OWL-S Coalition, listed below). Feedback and discussion may be given on the www-ws@w3.org email list. Many past discussions about OWL-S can be found by searching the public-sws-ig list archives. OWL-S has been used and extended by many different researchers. The releases on this site include only the consensus core ontology developed by the OWL-S Coalition. For related work, including extensions, please refer to the relevant publications.

Early releases of this ontology were known as DAML-S, and were built upon DAML+OIL (the predecessor of OWL).

Please note that the focus of this release is on an ontology for use in describing Web services. Related matters such as software components, tools, use cases, and architectural considerations are not covered here in detail. However, many requirements in these areas have been considered in developing this ontology. Some of these considerations are described in related publications, such as those listed at the OWL-S Home Page.

OWL-S (previously DAML-S) is the first well-researched Web Services Ontology, and has numerous users from industry and academe. OWL-S provides one important foundation for the efforts of the Semantics Web Services Language (SWSL) committee of the Semantic Web Services Initiative (SWSI). SWSI is a collaborative international effort towards the development of Semantic Web Services technology.



The following individuals were involved in preparing the OWL-S 1.2 release. See individual documents for additional information. Additional authors are associated with previous releases.


The material on this page was authored and is copyrighted by the OWL-S (formerly DAML-S) Coalition. This material or any part of it may not be reprinted in whole or in part without the express permission of the Coalition members. Uses of this material should be accompanied by appropriate attribution to Coalition members.