Abstract: In view of the lower efficiency of query in the existing semantic Web services discovery model, this paper proposed a new Semantic Web Services Discovery Model called SWSDM_Cache. It extended the traditional UDDI to a distributed framework, divided the semantic Web services on domain, and stored them in respective domain UDDI database. In the discovery process, domain matchmaking was executed firstly, and Cache retrieval was executed secondly.Experimental results show that the model significantly improves the efficiency compared with the traditional discovery strafegy.

Key words: Web service, OWL-S, UDDI, Semantic Web service discovery, Cache