本篇論文首先比較計算機輔助協同作業(Collaborative Support Computer Working,CSCW)與分散式虛擬環境(Distributed Virtual Environment,DVE)之間使用目的上的異同處後，發現這兩者都是架構於網路上的應用而且可以提供多人同時上線的工作環境。但是由於CSCW主要用於群組的工作，因此它注重協調，對即時同步的要求範圍並不嚴格，它可視使用者的需求以即時同步的方式維持一致性，或是僅藉由簡單的協調機制來維持一致性。DVE則主要用於模擬真實世界的即時線上虛擬環境，因此在工作環境內資料的動作是具有時效性的，它必須以即時同步的方式來維持工作環境內的一致性。在此同時我們整理出在CSCW與DVE這兩種工作環境下的同步機制的異同，以及在這兩種工作環境下如何解決物件屬性不一致的方法演進過程。最後再依照上述的特性與方法找出CSCW與DVE之間底層技術上的關係。藉由這些整理可以清楚看出CSCW與DVE之間在底層技術上的關係與維持一致性的方法演進過程，並找出未來發展的方向。

In this thesis, we find out the differences of purpose between Collaborative Support Computer Working (CSCW) and Distributed Virtual Environment (DVE). They are both applications on network and supply an on-line workspace of multi-user. Although CSCW is used in work of group, it is not strict with synchronization. According to its requirements, CSCW can use real-time synchronization to maintain consistency, or simple coordination framework to maintain consistency. DVE is a real-time virtual environment which is used to simulated real world, so the modification of data must be in time. It have to use real-time synchronization to maintain the consistency of workspace. At the same time, we see the differences of synchronous technologies between CSCW and DVE, and figure out the process of evolution on how to solve the inconsistency. Finally, base on the mention of above, we can find out the relation of basic synchronous technologies between CSCW and DVE. By these arrangements, we can know the relation and the process of the technology in basic architecture, and figure out their development in the future.

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