Chapter 14: Process Control and Improvement – Poka-Yoke (Error-Proofing)
Abstract: Poka-yoke" (pronounced "poh-kah yo-kay") is a Japanese term meaning "mistake-proofing" or "error-proofing," referring to a process control and improvement technique that aims to prevent errors from occurring in a process by designing mechanisms that either make mistakes impossible or immediately noticeable when they happen, essentially eliminating defects at the source ; it's a key component of Lean manufacturing and Six Sigma methodologies. Key points about Poka-yoke: Goal: To proactively identify potential error points in a process and implement preventative measures to eliminate them, rather than relying on quality checks after the fact. How it works: Poka-yoke utilizes various techniques like physical design constraints, visual cues, and automated detection systems to alert operators when a mistake is about to be made or has already occurred, allowing for immediate correction. Types of Poka-yoke mechanisms: Contact...