关键词: 设计结构矩阵；耦合任务集；割裂算法；信息依赖度

Abstract:

In view of the disadvantages of calculating the dependency degree between coupled tasks in product development, the essential relation between changeability and sensibility (measure index of information dependency) was investigated deeply. The concepts of information correlation group and correlative degree were proposed. The correlative degree was measured by the methods of pair-wise comparison technique of FAHP(fuzzy analytic hierarchy process) and group decision making. The changeability matrix and sensibility matrix were constructed by the concept of correlative degree. Combined the index weight function, the computational method of information dependency was presented. The improved tearing rule and tearing algorithm flow were proposed. Finally, an applied case was given to show the efficiency and practicability of the improved tearing algorithm.

Key words: design structure matrix, coupled task set, tearing algorithm, information dependency degree