Resumen de Optimal Design of a CUSUM Chart for a Mean Shift of Unknown Size

Jong-Hyun Ryu, Hing Wan, Sujin Kim

• The cumulative sum (CUSUM) control chart is a popular method for detecting a process mean shift, but it can perform poorly when the actual size of the shift is significantly different from the assumed size. Using an average run length-based performance measure called an expected weighted run length (EWRL), a method is propose to optimally design a CUSUM chart. The method can be extended to other CUSUM-based control charts.