基于改进的TOPSIS法与RSR法的质量改善项目综合评估

The Priority Ranking of Quality Improvement Project Based on Improved TOPSIS and RSR Method

针对失效模式与影响分析中的风险优先数(RPN)方法在质量改善项目排序问题上的局限性,提出一种新的排序方法。首先,借助模糊集理论和熵权法,确定决策指标的模糊指标值和主、客观权重;随后采用改进的理想解逼近法(TOPSIS)与秩和比法(RSR)获得优先级排序和分档;同时,提出并定义了相对应的关键术语:改善主题、难易程度、发生度和改善潜力,最后,结合企业实例验证了新排序方法的有效性和稳定性。

Aiming at the limitation of the RPN （ risk priority number ） of the failure mode＆amp;effect analysis in the quality improvement activities , a new ranking method is proposed .Firstly, by fuzzy set theory and entropy weight method , fuzzy value and subjective and objective weights of decision factors are computed . Secondly, using the improved TOPSIS method and RSR （ method） for the prioritization and classification . Then, the key terms of FMEA including improvement theme , degree of difficulty , the occurrence and po-tential for improvement are put forward and defined , with the new method verified by enterprise examples . Finally, an enterprise example verifies the availability and stability of the new ranking method .