An adaptive sample size CUSUM control chart

H. P. Annadi, J. B. Keats, Douglas Montgomery, George Runger

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


The Cumulative Sum Chart for process control is designed to detect relatively small shifts in the mean of the process variable. In this paper, we show that by using samples of two different sizes, rather than a fixed sample, improvements in the chart's ability to detect small shifts are possible. These improvements are obtained without increasing the likelihood of a false alarm when the process mean is on target. The average run length values for the adaptive sample scheme are compared to those for a fixed sample scheme for different magnitudes of shifts in the process mean. A fast initial response scheme is presented. An example from a manufacturing process is used to illustrate the advantages of the adaptive sampling scheme.

Original languageEnglish (US)
Pages (from-to)1605-1616
Number of pages12
JournalInternational Journal of Production Research
Issue number6
StatePublished - Jun 1995

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering


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