ضرورت بازنگري در ساختار اصطلاحنامه ها بررسي عدم كارايي اصطلاحنامه ها در محيط اطلاعاتي جديد و قابليت هاي هستي شناسي ها در مقايسه با آن

Necessity of the revision in thesauri structures: a review of thesauri inefficiency in the new information environment and ontology abilities in comparison with them

The purpose of this paper is to discuss the inefficiency of the existing thesauri for presenting conceptual content and implicit knowledge in a given domain to the users; in spite of abilities that information technology have been provided. Lacking in well defined relationships among terms into three limited relationships of Narrower term, Broader term and related terms, are among other, problems that have made existing thesauri inefficient in current information environment. These problems have been resulted in the emergence of ontologies. In this paper, ontology is defined. Its structure is compared and contrasted with thesaurus to provide a general understanding of it.