A study on the web ontology processing system

This paper presents the method that model and process Web ontology data. That is, we describe the method that create and handle ontology object model in which to access, express and process Web ontology. With rising of semantic Web, there are many approaches that process ontology according to a characteristic of ontology data on Web. Recently, the resource description framework (RDF), DAML-OIL and Web ontology language (OWL) used as a language to express Web ontology. Hierarchical vocabulary architecture is to be composed of the top ontology layer of frame-base and the generic ontology layer that define common vocabulary use different domain and functional ontology layer which expressed the vocabulary that depend on generic ontology. By creating the ontology object model that used hierarchical vocabularies, we remove redundancy of an expression and can increase reusability. Furthermore, by using model access API, ontology external application such as reasoning, merging and authoring tools can easily access ontology object model and provide an easy knowledge representation about ontology