Roger L Costello, David B. Jacobs. c 2003 The MITRE Corporation What is oWl? Answer oWl is a set of Xml elements and attributes with standardized meaning that are used to define terms and their relationships OWL extends rdf schema Clas equivalentproperty OWL sameIndividualas OWL elements and attributes subClassof (i.e, OWL Vocabulary) resource RDF SChema ID2 Roger L. Costello, David B. Jacobs. © 2003 The MITRE Corporation. What is OWL? Answer: OWL is a set of XML elements and attributes, with standardized meaning, that are used to define terms and their relationships. subClassOf resource ID ... Class equivalentProperty sameIndividualAs ... OWL elements and attributes (i.e., OWL Vocabulary) OWL extends RDF Schema: RDF Schema OWL