Spc
Statistical Process Control (SPC)
When to Activate This Skill
- "Set up SPC for [characteristic]"
- "Calculate Cpk for [process]"
- "What control chart should I use?"
- "Is this process in control?"
- "Interpret out-of-control pattern"
- "Conduct capability study"
- "What's the difference between Cp and Cpk?"
Purpose of SPC
SPC uses statistical methods to monitor, control, and improve processes by distinguishing between:
- Common cause variation - Normal, inherent process variation
- Special cause variation - Abnormal, assignable causes requiring action
Why SPC Matters
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