Definition: Process variable
Quality, Documentation, Measurement
Process variable gives an indication of the quality of the process.
Key process variables are those factors that can vary with each repetition of the process and have the largest effect on critical product characteristics, i.e. those characteristics that best indicate the quality of the product.
Source:
Eurostat, "Handbook on improving quality by analysis of process variables" produced by ONS-UK, INE Portugal, NSS of Greece and Statistics Sweden, 2004
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