ISO 7870-6:2016

Control charts — Part 6: EWMA control charts

Publication date: Feb 15, 2016

General information

Current stage: 90.92 Effective date: Oct 8, 2021

Originator: ISO

Owner: ISO/TC 69/SC 4

Type: International Standard

ICS: 03.120.30

Languages: English French

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Status: Published

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Scope

ISO 7870-6:2016 covers EWMA control charts as a statistical process control technique to detect small shifts in the process mean. It makes possible the faster detection of small to moderate shifts in the process average. In this chart, the process average is evaluated in terms of exponentially weighted moving average of all prior sample means. EWMA weights samples in geometrically decreasing order so that the most recent samples are weighted most highly while the most distant samples contribute very little depending upon the smoothing parameter (λ).

Life cycle

NOW

PUBLISHED
ISO 7870-6:2016
90.92 Standard to be revised
Oct 8, 2021

REVISED BY

IN_DEVELOPMENT
ISO/DIS 7870-6

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