关键词: 迟到者加入, 设计历史, 协同设计

Abstract: There always come new members to the cooperative process in a CSCD(computer supported collaborative design) environment. Those latecomers need to catch up with the design process without disturbing existing cooperators. This paper analyzes latecomers joining mechanism and adopts the algorithm of operation log based on design history, with an aim to ensure rapid synchronization between latecomers and other cooperators by using database cursor and system locking techniques. This algorithm not only can enhance the applicability of the CSCD platform, but also support the comeback of crashed cooperative computers. It improves the capability of fault toleration of the cooperative environment by ensuring the cooperators can trace the process easily.

Key words: late join, design history, computer-supported collaborative design