Increasing web services discovery relevancy in the multi-ontological environment

The existing approaches to the solution of web services discovery issues are reviewed briefly in this paper. The problems of low relevancy, interoperability, high amount of the human factor existing in the process of web services discovery are found and can be solved by addition of semantic data to web service description. The existing models of ontology annotated web services are analyzed and their modification is proposed to allow achievement of higher discovery relevancy. The concept of the intermediate abstract object called «service template», in which end user requests and ontological models are converted, is introduced. It is also proposed to use inputs and outputs of web services operations to match them by syntactic and semantic criteria. As shown in the paper, web service discovery response relevancy has increased, and probability of false matching has decreased.