Using Web Services to Put Metamorphosis on the Web

This paper describes the exposure on the Web of Metamorphosis main functionalities. This exposure will be accomplished through an XML Web Service. Metamorphosis is a Semantic Web tool aiming at the automatic creation of knowledge views for heterogeneous data sources or information systems. Each view is characterized by an ontology that corresponds to a semantic network composed of concepts and relations that are built with data extracted from several data sources. There are several formal notations for knowledge representation; Topic Maps were chosen due to their advantages like: having a frozen syntax which enables the creation of tools like extractors and navigators; and being abstract enough to specify anything (everything can be represented as a topic and these topics can relate to each other).