BS ISO 7870-4:2011 - Page 3

Control charts. Cumulative sum charts | Status: Superseded, Withdrawn

1 Scope This part of ISO 7870 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.