|dc.description.abstract||This study bases on a previous one called WebClass. We developed a web-based learning system, which uses database as the center and integrates the Internet resource and system modules into it, including user management, course management, content/exercise management, discussion management, etc., into the system. In WebClass, the system is transferred to Windows NT platform. An initialization of a distributed structure is done, however, the detail settings like the relative of CGI program, construction of virtual page directory and real system directory, linkage of database, etc. should be modified by users. It is difficult to use the system if users are not familiar with the operation platform. The system extended the system to windows 95/98. Therefore, users can easily construct their systems, supporting a learning environment to assist teachers in handling course activities. It helps teachers make efforts in teaching.
In this study, we adopt a multilayer-distributed structure. The centralized system is the center and hybrids the other distributed ones in layer structure. The systems dispatch synchronal messages in the same layer and asynchronal data in different layers. First, we build the personal version system, distribute it, and keep the information in the service center of EduClasses. Then, we construct a centralized system on EduCities a learning platform. Through the school server and the protocol in the multilayer, to form a web of learning system. It can dispatch learning resource to achieve resource sharing.
Except supporting an environment to teach and study and being as the center of the multilayer-distributed structure, the centralized system also can prompt a series of learning activities to raise the behavior at network learning.||en_US|