From: David Martin (martin@ai.sri.com)
Date: 01/09/04
A new release, version 1.0, of OWL-S (Ontology Web Language for
Services) is available here:
http://www.daml.org/services/.
OWL-S (formerly DAML-S) is an OWL [1] 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.
This release has been available (unannounced) in Beta form for a
couple months, and we appreciate the useful feedback we've received
from various reviewers.
Version 1.0 features a number of refinements to the Service Profile
and Process Model. The Service Profile is used to concisely represent
the service in terms of capabilities, provenance, and operational
parameters (e.g. cost-of-use, quality-of-service parameters, etc), for
constructing both advertisements and requests. Improvements over
DAML-S 0.9 include: clarification and simplification of capability
description parameters (i.e. inputs, outputs, preconditions and
effects), a tighter integration with the process model, and better
organization/modularization of the Profile constructs.
The Process Model provides a declarative description of the processing
by which a Web service is realized. Here, the primary improvement
over DAML-S 0.9 is a switch in representational strategy: whereas
processes were represented as OWL classes before, now they're
represented as OWL instances. In addition, the constructs for
declaring inputs, outputs, preconditions, and effects have been
refined and simplified (and these are now the same as in the Profile).
David Martin
SRI International
... on behalf of the OWL-S contributors from BBN Technologies,
Carnegie-Mellon University, De Montfort University, Nokia, Stanford
University, SRI International, University of Maryland, College Park,
University of Maryland, Baltimore County, University of Southampton,
USC Information Sciences Institute, Vrije Universiteit Amsterdam, Yale
University.
[1] http://www.w3.org/TR/owl-guide/
This archive was generated by hypermail 2.1.4 : 01/09/04 EST