The computations for Average Run Length of CUSUM control chart in Fuzzy enviornment are discussed by means of extending traditional Markov chain methods to Fuzzy data valued random process (production process) control chart.

• 探讨累计和控制图在模糊环境下平均游程长度的计算方法 ,将普通马尔科夫链方法推广到取值于Fuzzy数据的随机过程 (生产过程 )控制图