Process capability
Workability and cooperation in producing a measurable output / From Wikipedia, the free encyclopedia
This article is about the quantifiable measure of a process. For software process capability, see Capability Maturity Model and ISO/IEC 15504.
The process capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., Cpk or Cpm) or as a process performance index (e.g., Ppk or Ppm). The output of this measurement is often illustrated by a histogram and calculations that predict how many parts will be produced out of specification (OOS).
Two parts of process capability are:
- Measure the variability of the output of a process, and
- Compare that variability with a proposed specification or product tolerance