多媒体呈现流程的形式化描述及内容表示

Formal Description and Presentation of Interactive Multimedia

交互式多媒体呈现系统一般由呈现内容和呈现控制流程两部分组成。通过引入通用转换网络,对交互式多媒体应用系统的内部呈现流程进行了形式化描述;讨论了该形式化描述下呈现流程的重用性;提出了将呈现流程与呈现内容相分离的系统实现策略;给出了呈现内容描述和可呈现对象相结合的呈现内容表示方法。该策略和方法可用于设计实现交互式多媒体呈现系统创作平台,利用该平台创作的呈现系统能够并发地呈现多种媒体形式的信息,系统及其组成部件具有良好的可重用性。

An interactive multimedia presentation system is usually composed of present flow and present content. Generalized transition network （GTN） is used to describe control flow as formal description in the system. Based on the presentation context and presentable object, the method to describe present content is proposed. This method can be used to design an authoring tool for interactive multimedia presentation system. The system produced by the tool can present the multimedia content concurrently, and its component can be reused in other presentation system.