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Economic control chart policies for monitoring variables
Journal article   Peer reviewed

Economic control chart policies for monitoring variables

Erwin Saniga, Thomas McWilliams, Darwin Davis and James Lucas
International journal of productivity and quality management, v 1(1-2)
01 Jan 2006

Abstract

control charts CUSUM charts SPC economic design control chart design Shewhart charts process monitoring statistical process control process quality
In this paper, we compare the costs of an economically designed CUSUM control chart and a common Shewhart control chart, the X–bar chart for many configurations of parameters. Our results indicate that there are identifiable regions where there is an overwhelming cost advantage to using CUSUM charts. Additionally, we find that there are identifiable regions where an X–bar chart can be employed without any substantial economic disadvantage. Finally, we identify regions where a regular search policy is less costly than a policy of using either a CUSUM or X–bar chart.

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27 citations in Scopus

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