Poka-yoke is a Japanese term that means "mistake-proofing" or "error-proofing." It is a concept used in various fields, including manufacturing, product design, and process improvement, with the primary goal of preventing or minimizing errors and mistakes at their source. The purpose of poka-yoke is to improve the quality of products or services, enhance efficiency, and reduce defects, waste, and the need for inspections or rework.