Poka-yoke

Poka-yoke (ポカヨケ, ) is a Japanese term that means 'mistake-proofing' or 'inadvertent error prevention'. A poka-yoke is any mechanism in any process that helps an equipment operator avoid (yokeru) mistakes (poka). Its purpose is to eliminate product defects by preventing, correcting, or drawing attention to human errors as they occur. The concept was formalised, and the term adopted, by Shigeo Shingo as part of the Toyota Production System. It was originally described as baka-yoke, but as this means 'fool-proofing' (or 'idiot-proofing') the name was changed to the milder poka-yoke. Poka-yoke (ポカヨケ, ) is a Japanese term that means 'mistake-proofing' or 'inadvertent error prevention'. A poka-yoke is any mechanism in any process that helps an equipment operator avoid (yokeru) mistakes (poka). Its purpose is to eliminate product defects by preventing, correcting, or drawing attention to human errors as they occur. The concept was formalised, and the term adopted, by Shigeo Shingo as part of the Toyota Production System. It was originally described as baka-yoke, but as this means 'fool-proofing' (or 'idiot-proofing') the name was changed to the milder poka-yoke. More broadly, the term can refer to any behavior-shaping constraint designed into a process to prevent incorrect operation by the user.