WEB SERVICE DISCOVERY USING FUNCTIONAL LEVEL SERVICE CATEGORIZATION APPROACH

The Web services set of standards is aimed at facilitating and improving the quality of component - based applications on the web. Web services have become a new wave of Internet technology development . A vast majority of Web Services exist without explicit associated semantic descriptions. As a result many services that are relevant to a specific user service request may not be considered during service discovery. . Here the approach involves semantic - based service categorization and semantic enhancement of the service request. This paper proposes a solution for achieving functional level service categorization based on an ontology framework . The semantic - based categorization is performed offline at the universal description discovery and integration (UDDI). The semantic enhancement of the service request achieves a better matching with relevant services. The service request enhancement involves expansion of additional terms that are deemed relevant for the requested functionality. An efficient matching of the enhanced service request with the retrieved service descriptions is achieved utilizing Laten t Semantic Indexing (LSI)