(1) Lean tool for making products correctly the first time. When thoroughly implemented Error & Mistake-Proofing create improvements on many different levels. Even the products themselves may be redesigned to minimize errors in their manufacture.
(2) Error and Mistake-Proofing (also known as "Poka Yoke") is one of the powerful Lean tools used to ensure products and processes are completed correctly the first time. The goal is to reduce scrap, rework, and eliminate production losses due to inconsistent processes, methods, materials, etc. Improved quality and cycle-times are nearly always achieved.