poka yoke definition
Poka-yoke [poka joke] is a Japanese term that means mistake-proofing or âinadvertent error preventionâ. The key word in the second translation, often omitted, is inadvertent. There is no Poka Yoke solution that protects against an operatorâs sabotage, but sabotage is a rare behavior among people. A poka-yoke is any mechanism in a lean manufacturing process that helps an equipment operator avoid (yokeru) mistakes (poka).