A Symmetric Matchmaking Engine for Web Service Composition

Matchmaking of Web services is a key step in Web service composition process. To enable automated Web service composition and achieve a better performance, matchmaking process needs formally representation of Web service capabilities, which should not be only machine readable, but also machine understandable. Based on our previous work on Web service composition prototype D-Composer, we bring out issues of Web service modeling by separating service type and instance on OWL-S. In this paper, we describe the design and implementation of a symmetric matchmaking engine (SME) based on symmetry of information exchange - both service provider and service consumer have to provide information to the matchmaking engine. We also provide the experimental comparison, which shows that our method has a better performance and scalability.