In The World Wide Web(WWW) serves the human with vast amount of data and information.The usage pattern or user base has multiplied many folds since its origin. Despite the increasing importance gained by the WWW, to serve the human, it lacks the feature to serve meaningful information to machine this means that limited support for utilization of data and information is achieved. Thus the web needs to be made Semantic wherein different applications, agents, Web services and the web sites can exchange information to their full potential. This calls for representing the knowledge residing on WWW in a uniform manner understandable by both man and machine. Thus some taxonomy is needed to make representations of the web contents which can be machine readable and usable .This paper proposes to relate the need for Ontology and relate it to Web ontology language (OWL) and identify its position in making the Semantic Web. It is also felt that ontological support is needed for the semantic web in order to make the information ready for machine consumption. The ontological structure using the Web Ontology Language (OWL) which is used for modeling ontologies of context and for supporting Context reasoning is explored in this paper.The Web Ontology Language is designed for use by applications that need to process the content of information instead of just presenting information to humans. OWL facilitates greater machine interpretability of Web content

Semantic Web Ontology OWL (web ontology language)