摘要：Ranking techniques are very noteworthy in the fuzzy numbers system for defuzzification. Many authors have already proposed various types of techniques to find out the performance of fuzzy queues. In this paper, we are going to deal with a new methodology namely centroid of centroids ranking method to find out the performance measures of non-preemptive priority fuzzy queues with 4-priorities. It is possible to convert from fuzzy environment to crisp environment by our proposed ranking method in order to analyze the performance measures of fuzzy queues. Finally, the effectiveness and the accurate values of our proposed method have been successfully solved by an example
