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Control Chart

The cornerstone of Statistical Process Control, the Control Chart highlights special causes of variation in a repeating process. They are not the easiest of tools to use and a degree of statistical knowledge is of significant benefit.

Generally, they are only useful in high frequency processes where there is sufficient data, although short-run charts can be used.

The Control Chart is one of the first seven tools.

Note: The Control Chart in practice is quite complex, with a number different types of chart and calculation depending on the data being analysed. This summary is thus a significant simplification!

See also:

Special causes, first seven tools, Control limits

Toolbook chapter: Control Chart

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