Abstract:Nowadays quality is an extremely important tool in satisfying customers and winning market shares. When a quality problem occurs, it is crucial to detect it quickly in order to avoid serious economic loss. Control chart is a powerful Statistical Process Control (SPC) method to monitor and diagnose the processes. The cumulative sum (CUSUM) control chart which accumulates historical information in the process is effective to detect process changes including mean and variance shifts. This thesis proposes several … Show more
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