Poka yoke意思
"Poka-yoke" is a term that originated in Japan and is used in the context of quality control and process improvement. It is often translated as "foolproofing" or "error prevention." The concept was first introduced by Shigeo Shingo, an industrial engineer, as a part of the Toyota Production System, which is the basis for what is now known as lean manufacturing.
Poka-yoke is a method of designing a manufacturing process or a product in such a way that it becomes impossible for mistakes to be made, or at least makes it easy for non-expert users to avoid common errors. The goal is to eliminate the possibility of human error at the source, rather than trying to correct mistakes after they have occurred.
The idea behind poka-yoke is to build in safeguards or fail-safes that prevent defects from occurring in the first place. This can be achieved through various means, such as:
- Designing products in a way that makes it physically impossible to perform an operation incorrectly.
- Using visual cues or color coding to guide workers through a process.
- Implementing automation that performs tasks with a high degree of accuracy.
- Providing clear and concise instructions or training to ensure that workers understand the correct procedures.
By incorporating poka-yoke principles into the design of a process or product, manufacturers can reduce waste, increase productivity, and improve the overall quality of their output. The concept has been widely adopted in various industries, including automotive, aerospace, electronics, and healthcare.