Developing an University Ontology in Education Domain using Protg for Semantic Web

摘要

The current web is based on HTML which is not able to be exploited by information retrieval techniques and hence processing of information on web is mostly restricted to manual keyword searches which results in irrelevant information retrieval . This limitation may be overcome by a new web architecture known as semantic web which is an intelligent and meaningful web proposed by Sir Tim Berners Lee. In his roadmap for semantic web, Ontology plays a pivotal role in information exchange, use and re-use knowledge, shared and common understanding of a domain that can be communicated between people and across application systems which is the goal of semantic web. Ontology is used to capture knowledge about any domain of interest with the objective of incorporating the machineunderstandable data on the current human-readable web. Web Ontology Language (OWL) is a semantic markup language for sharing ontologies on the web and is designed for use by software agents to empower them to comprehend the meaning of web documents. Ontology is a broad term including a wide range of activities,complexities and issues in which Ontology Development is one of the most fundamental and significant concern. There may be various methodologies or tools for ontology development . In this paper, we consider the education domain and demonstrate the development of an University Ontology using Protg 3.4 Editor. Indraprastha University, Delhi, India has been taken as an example for the Ontology Development and various aspects like super class and sub class hierarchy, creating a sub class, instances for classes illustration, query retrieval process, Graph corresponding to a sub-class using TGViz have been demonstrated.