Definition
A method for monitoring process stability using statistical tools to identify deviations and prevent nonconformities.
Human Explanation
SPC helps distinguish natural process variation from problems that require intervention.
Why it Matters
It enables problems to be detected before they result in defective products or services.
Conceptual Boundary
SPC is not final quality inspection; it is a method for ongoing process control.
Practical Perspective
It commonly uses control charts, variation analysis and Process Capability measures.