媒体通信系统应用子系统综合论述(ppt 58页)

媒体通信系统应用子系统综合论述内容提要：
协同计算：
Collaborative computing 　
现在工作站和PC机都配有很强的音频和视频功能,若把它们用高速网络联在一起，那么就为人们提供了一个协同计算环境，协同计算通常又称为计算机支持的协同工作(CSCW)。
The current infrastructure of networked workstations and PCs,and the availability of audio and video at these end-points,makes it easier for people to cooperate and bridge space and time. In this way, network connectivity and end-point integration of multimedia provides users with a collaborative computing environment. Collaborative computing is generally known as Computer-Supported Cooperative Work (CSCW).
协同维数：
Collaborative Dimensions　
电子化的协同工作系统可根据时间、用户范围和控制这三个参数进行分类[WSM+91]。这样协同工作系统可以被划分一个三维空间（如图11.1所示）。
Electronic collaboration can be categorized according to three main parameters: time, user scale and control [WSM+91]. Therefore, the collaboration space can be partitioned into a three-dimensional space (shown in figure 11.1).

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