RDF Schema and Web Ontology Language (OWL) have nonstandard metamodeling architecture. As a result, these languages are difficulty to read and implement. Thus it is significative to make the OWL meta-model simpler. This paper introduces a modified RDF Schema (M-RDFS) as a metamodeling basis for OWL; it also describes how to overcome some problems of the original RDF Schema. Based on this metamodeling architecture, the M-RDFS will be a metalanguage for OWL, thus it will not directly define specific ontologies. This paper introduces a conventional metamodeling architecture for semantic web languages. This method makes the modified RDF Schema easier to read and formalize, and it offers a firm semantic basis for OWL.
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