Achieving Zero Defects by Respecting Human Nature
Shigeo Shingo of the Toyota Motor Works had a revelation: Mistakes are part of human nature and are unavoidable, but defects arising from mistakes are 100 percent preventable!
Thus began the technique of mistake proofing, or Poka-Yoke, as a countermeasure to defects. Borrowing from the military practice of fail-safing, Shingo developed this process to “respect human nature” rather than punish it.
Yet most legacy quality systems that discourage reporting of defects for fear of reprisal and corrective action that suggests an employee “be careful” or “receive additional training” miss Dr. Shingo