基于XML的网络课件模型研究及实现

Research and Implement of Web Courseware Model Based on XML

基于网络的计算机辅助教学朝着分布化、结构化、协同化方向发展,网络课件的合理建模和构造成为需要迫切解决的问题。该文提出了一个网络课件分层结构信息模型,把网络课件组织成具有课件目录层-课件页面层-媒体资源层三个层次的分层结构模型,定义了两套标记语言M M L和PM L,其中M M L用于描述课件目录层,PM L用于描述课件页面层和媒体资源层,从而实现了对网络多媒体课件的建模和构造,该模型能有效地解决课件网络化中出现的一些问题。

With the development of network CBE(Computer Based Education),the method of Network CAI's exploitation is distributing,constructiving and cooperating.The problem of how to modeling and constructing web courseware in reason must be solved immediately.This paper presents a hierarchical structured info model of web courseware,web courseware is organized into 3 layer:courseware manifest layer,courseware page layer and media resource layer.Meanwhile we define two sets of markup language-MML and PML,MML is used to describe courseware manifest layer,PML is used to describe courseware page layer and media resource layer.This model can solve some problems efficiently during courseware becomes networked.