Theoretical Studies On Ontology-Based Information System Modeling

Since 1990s, ontology has been introduced in Artificial Intelligence, Knowledge Engineering and Library & Information sciences. of ontology and Information sciences will bring energy into the research of Information sciences and the combination is needed for the demand of modeling practice.This paper systemically introduces the theory of the ontology and modeling. At the theory of ontology aspect ,the origin, definition ,type and role of ontology have been described . We fully analyze potential function of the ontology, point out that the theory of ontology is benefit to avoid semantic diversity and implement knowledge sharing and reuse .On the other hand, this paper summarizes application of ontology in Information sciences and points out that the applying of ontology gets more extensive than before but the research level of ontology in China is not as developed as the western countries now. About the modeling theory, this paper discusses basic concepts of the modeling theory and introduces the traditional method of modeling such as IDEF and Object -Oriented method, indicates the strongpoint and shortage.According to the theories that had been discussed, the paper puts forward the argumentation that combines ontology and information system modeling. The two key problems has been analyzed in this paper——domain ontology and ontological formal language. We adjust the traditional modeling method ,then conclude the approach of ontology-based information system modeling. And then the author introduces the OWL language and building ontologies...