Knowledge Service Models of Digital Library in Distance Education Environment & Their Realization

Digital library (DL) follows four principles to provide knowledge service, i.e. user-driving principle, specialization principle, personalization principle, dynamic principle and integration principle. These principles make it possible to solve the actual problems in distance education. In this paper, the knowledge service models of DL in distance education environment are summed up into specialized service model based on subject knowledge base, content-based reference service model, personalized custom-made service model, and teamwork service model. A distance education-based knowledge service platform of DL is designed to integrate the above four models finally.