关键词: 粗集理论, 快速设计, 方案决策, 权重

Abstract: Rough sets theory was applied into the rapid design of products to achieve the custom-oriented rapid design. According to the fuzzy requirements of customers, case matching, project decision-making and calculation of weight were determined. First of all, using rough sets theory, the design parameters of each case in the case database were discretized and generalized to find out the relationships among features, the simplified decision-making table was set up and regulations of the project decision-making were acquired. At the same time, the dependency degree of qualification attribute to decision attribute was calculated and the weight of each attribute was defined. Then example of rapid design of an astronomical doom showed that this method was more objective and concise than those traditional methods and its processing speed was much faster.

Key words: rough sets theory, rapid design, project decision-making, weight