Definition
Process Capability is the ability of a stable process to consistently produce outputs that meet defined specification limits.
Human Explanation
A capable process produces results that remain within required tolerances without relying on continual adjustment or inspection.
Why it Matters
Understanding process capability helps organisations predict quality performance, reduce variation and improve process stability.
Conceptual Boundary
Process Capability should be evaluated only after confirming that the process is stable. An unstable process cannot provide meaningful capability results.
Practical Perspective
Improving capability usually requires reducing process variation rather than increasing inspection.