Ontology Model for Semantic Web Service Matching

摘要

Abstract Service and resource discovery has become an integral part of modern network systems, in which area all researches are aiming at RESTful Web services and SOAP Web services separately. Basically, a RESTful Web service is a simple Web service implemented by using HTTP protocol and the principles of REST, and does not address features such as security. On the other hand, the SOAP Web service is more feature rich, at the cost of increased complexity, yet still lacks a true resource-centric model. As there are apparent differences between RESTful Web services and traditional SOAP Web services, it's diffi cult to perform service comparison, matching and evaluation. Therefore, the gap between them needs to be eliminated, and we prefer to employ ontology, which is a formal representation of the knowledge by a set of concepts within a domain and the relationships between those concepts. In this paper, a service registry framework based on ontology model is proposed, which is called Concept Operation Ontology Model (COOM), to avoid the differences between RESTful Web services and traditional SOAP Web services, and illustrate the Web service matching mechanism based on this ontology model. The result shows that this service registry framework has unified the interface of RESTful Web services and SOAP Web services, and returned the best service alternatives with higher similarity when performing service matching.