其中很重要的一个环节就是课件管理系统，同时它也是最难实现的环节。
A very important link is the teaching class management system management system, at the same time it also is the link which most difficult to realize.
本文的主要部分是根据当前远程教育的状况和需求，设计了视频课件应用系统，它包含视频课件管理、视频课件浏览和视频课件制作三个子系统。
In the main part of this thesis, it designs a video courseware on demand application system according to current distance education 's status. This system contains three main subsystems.
系统有一个功能强大的后台管理系统：可以进行人员管理，权限管理，课件管理。
This system has a powerful backstage, it realizes the following: user management, authorization management, and course management.
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