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What’s Process Capability?

Process Capability is a measurement of how well a Process’ Outputs meet Customer Requirements.

Strong Process Capability indicates that a high percentage of Output meets Customer Requirements, while Weak Process Capability means the opposite. Weak Process Capability is usually due to unacceptably high variability of Output that falls outside Customer Requirements.

Learn more about DPMO Test in Measure Phase, Module 3.4.1 of Black Belt Training.

How To Run A Process Capability Test (Discrete) In SigmaXL

Download the Process Capability Test (Discrete) Data Set for SigmaXL here.

1. Select Raw Data:


2. Go to Process Capability > Basic Process Capability Template > Process Sigma Level-Discrete

3. Enter data into the template: Number of units = 300; Number of defectives = 124:


Learn more about Process Capability Tests (Discrete) in Measure Phase, Module 3.4.1 of Black Belt Training.