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ISO 7870-4:2011 Control charts - Part 4: Cumulative sum charts
standard by International Organization for Standardization, 07/01/2011
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ISO 7870-4:2011 provides statistical procedures for setting up cumulative sum (cusum) schemes for process and quality control using variables (measured) and attribute data. It describes general-purpose methods of decision-making using cumulative sum (cusum) techniques for monitoring, control and retrospective analysis.