Lean Business Solutions
Poka Yoke

Poka-Yoke is from the Japanese words for inadvertent error (poka) and avoidance (yokeru). Mistake-proofing the process involves changing the method or equipment to ensure that a particular error cannot happen. Mistake-proofing is important because if it takes 1 hour to fix a problem where it occurs, it may take 10 hours downstream, and it may take 100 hours at the customer.

The use of drop-down menus on a web page ensures that a valid option is selected by the user. Manhole covers are round so they cannot be dropped into the manhole like a square cover could be. The beauty of Mistake-proofing is that it acknowledges the reality that people make mistakes, but makes it easier to do the process correctly than to do it incorrectly.

Mistake Proofing

Never leave home again without your phone

Poka Yoke