Ontology Based Semantic Querying of the Web using Prot?g
Currently, the Web is primarily composed of documents written in HTML. Information on the web is designed for human consumption. Retrieval of information on web is mostly restricted to keyword searches. This limitation may be overcome by semantic web which is an intelligent and meaningful web proposed by Sir Tim Berner Lee. Ontology is the structural framework in semantic web and plays crucial role in information exchange, knowledge reuse and provides reasoning capabilities for human and machines. Ontology is a set of concepts and the relationships that exist between those concepts. Components of ontology are individuals, classes and properties.