ISO/FDIS 7870-6

Control charts — Part 6: EWMA control charts for the process mean ISO/FDIS 7870-6

General information

Current stage: 50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Apr 17, 2024

Originator: ISO

Owner: ISO/TC 69/SC 4 Applications of statistical methods in product and process management

Type: International Standard

ICS: 03.120.30 Application of statistical methods

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

PREVIOUSLY

PUBLISHED
ISO 7870-6:2016

NOW

IN_DEVELOPMENT
ISO/FDIS 7870-6
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Apr 17, 2024