Abide by the principles of " to first realize that different ones have the same cognizance about the same terms and then to realize information sharing " , we use ontology to describe the critical terms in distance learning and to structuralize and to provide equivalence criteria , and at the same time it can effectively reduce the semantic conflicts and facilitate the interoperability among different data sources 由于教育系统的多元化，使得不同的系统对教育词汇的定义往往产生分歧，针对这种现状，我们本着先实现共知，后实现共享的原则，运用本体描述领域中的关键术语，建立领域词汇表，为信息共享创造条件。
