LI Zheng-yan ( 1.Computer School of Chongqing University, Chongqing 400044; 2. Library of Sichuan University of Arts and Science, Dazhou, Sichuan 635000)
At present, there are many types of network learning system. Their module division, frame, operating environment and the effect are different. However, the studies on how to evaluate all kinds of the network learning system have been done infrequently all over the world.