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Industrial technology, indexed.
Industrial automation · manufacturing · OT — updated 2026-09-23

Statistical process control (SPC)

Statistical monitoring of process variation and stability.

Statistical process control uses control charts and process data to distinguish common-cause variation from special-cause signals. It monitors process stability and capability; it is not simply a final inspection pass/fail test.

See also: First-pass yield (FPY) · Nonconformance · Golden batch

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