A number of lean manufacturing tools and practices have long been used to reduce manufacturing waste. These include the five S's, visual controls, standardized work, mistake proofing, total productive maintenance, cellular manufacturing, single-digit setup, pull systems, sequencing, activity-based costing, and leveled production.
the primary concepts behind lean manufacturing, mistake proofing , or poka-yoke in Japanese, is an important waste reduction tool. Mistake proofing is an essential failsafe activity to prevent errors at their source. In simple terms, mistake proofing is any device, mechanism, or technique that either prevents a mistake from being made or makes the mistake obvious so as to avoid a product defect. The objective of mistake proofing is either to prevent the cause of defects in manufacturing or to ensure that