Mistake Proofing: Poka-Yoke

Better Understand Mistake Proofing

Mistake-Proofing = Poka-Yoke

• Poka-Yoke: Reducing the likelihood of making an error

• “Hard” Mistake-Proofing: Design processes and tasks for error-free execution

• “Soft” Mistake-Proofing: Create alarm signals to catch Defects as they occur and warn people

Examples of Mistake-Proofing

• Hard:

• Online applications that do not allow you to proceed without required information

• Soft:

• When the car makes a sound when you open the door and the headlights are still on

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