ABSTRACT
Generally, a Process Capability Index (CpK) equal to 1.33 is considered to be acceptable as the minimum goal, but the acceptable CpK might vary, based on individual company quality requirements. For example, Ford Motor Company requires a CpK of 1.67, and Motorola requires a CpK of 2.00. The goal is to improve product and process quality by reducing variation in product characteristics and produce products on target. Companies should try to reach or exceed a CpK of 2.00 and should continuously try to improve product quality by exceeding minimum product quality requirements.
