A Framework of Web Services Description and Discovery Based on OWL-S and Domain Ontology

At present, massive Web Services are available on the Internet; discovery of relevant and required ones among these Web Services becomes a significant challenge. Because of deficiency of semantics, traditional discovery approaches are inefficient and have lower precision rate. In such a case, this paper presents a framework of Web Services description and discovery using OWL-S and domain ontology by which semantic information is extracted to help convert WSDLs into service profile files describing how service works semantically; then mappings from profiles to UDDI are built to reconstructed data structures of UDDI for supporting semantic services discovery. Meanwhile, a query template is provided to formulate the format of service requirement; after formatted, all user queries will be submitted to discovery engine and query engine to complete the semantic discovery process. As results, the most suited services can be discovered and returned to users. The experiment shows this framework is effective and useful in services discovery.