Non-taxonomic Relations in Semantic Service Discovery and Composition

Existing approaches for semantic web service discovery are often based on subsumption reasoning, i.e. on evaluating taxonomic relations between the ontology concepts used in the service descriptions. If these concepts are not related taxonomically, no match is found. In this paper we present an approach that recognizes the importance of non-taxonomic relations. To increase recall, it uses operations defined in the domain ontology as a common template for semantic descriptions of web service inputs and outputs. The problems of existing approaches and the benefits of the proposed solution are illustrated using a real-world example and a state-of-theart tool for semantic service discovery.