INTEGRATED APPLICATION OF THE CUMULATIVE SCORE CONTROL CHART AND ENGINEERING PROCESS CONTROL

Abstract

Recent years have witnessed heightened interest in the integration of sta- tistical process control (SPC) and engineering process control (EPC). The present study considers the utilization of the cumulative score (Cuscore) technique as an interface between SPC and EPC in cases where a closed loop control is used for process adjustment. Specifically, this study presents a scheme for the integrated use of the Cuscore control chart with the minimum mean squared error (MMSE) control. This study demonstrates the viability and potential advantages of this scheme for combining SPC and EPC.