Querying ontologies using restful web services

Semantic web is the most important technology development nowadays in web technologies area. In the web, information is extracted from the current web via keyword-based search and following the meaningless links between the documents using web search engines. It is noticed that this will be insufficient at the very beginning with the ever growing web and semantic web has the promise to fix this.Semantic web provides an important data model and information processing alternative not only for the web-based but for all other information processing systems as well. In the semantic web, comprehensive data models are constructed in the ontologies. Ontology is a data definition model for the data types and relationships in a specific domain. Ontology definition languages RDF, RDFS, OWL are the current web standards that are accepted in the academia and the industry.Ontology constitutes a schema for the semantic web-based systems. Ontologies are constructed and queried using specialized tools developed for his purpose. In this thesis we present a RESTful web services-based protocol and its implementation that is developed to define and query ontology definition and data.