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Monitoring cascade processes using VSI EWMA control charts |
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| Authors: | Su‐Fen Yang Yi‐Ning Yu |
| Abstract: | The paper considers the variables process control scheme for cascade process. We construct variable sampling interval (VSI) EWMA and EWMA control charts to effectively monitor the input variable and the output variable produced by a cascade process. Numerical analysis results demonstrate that the performance of the VSI control charts is much better than the fixed sampling interval (FSI) control charts in detecting small and median shifts. Copyright © 2009 John Wiley & Sons, Ltd. |
| Keywords: | control charts cascade process Markov chain |