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通过对白板工具所提供功能的分析，提出一个多层Client／Server结构模型，用于支持实时、异步和临时3种讨论方式;同时就该工具所采用的通信协议集、发言权控制机制以及动态组合语义光标技术等问题进行论述。
Through the analysis of the functions provided by the whiteboard tools, a multi-layer Client / Server structure model is proposed to support three kinds of discussion modes: real-time, asynchronous and temporary. At the same time, the communication protocol set, Combinatorial semantic cursor technology and other issues discussed.