The Japanese Secret to Zero Mistakes

Poka-yoke is a design philosophy that makes it physically impossible to commit an error. By forcing users into the correct action, it ensures that mistakes simply cannot happen.

The term originates from Japanese manufacturing and literally means mistake-proofing. You likely encounter this concept daily, like when a power cord only fits into a socket one way or a microwave stops running if the door is open. Instead of relying on people to stay focused, it designs the environment to guide behavior automatically. It is a brilliant way to eliminate accidents by removing human error from the equation entirely.