Statistical Process Control

Statistical Process Control (SPC) refers to: ‘Activities focused on the use of statistical techniques to reduce variation, increase knowledge about the process, and steer the process in the desired way. SPC operates most efficiently by controlling variation of a process characteristic or an in-process product characteristic that is correlated with a final product characteristic and/or by increasing the robustness of the process against this variation. A supplier’s final product characteristic can be a process characteristic to the next downstream supplier’s process.’

Ref “Statistics - Vocabulary and symbols - Part 2: Applied statistics,” International Organization for Standardization, ISO 3534-2, 2006.

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