Error Proofing




Error proofing (also known as “poka-yoke”) is a powerful prevention tool that is best implemented during the product and process design stage before capital resources are expended. Error proofing is the ultimate control plan because no inspection is required, other than periodic monitoring of error proofing devices to ensure they are in place and working properly.

See the example to the right for assembly error proofing that was built into an electronic assembly, ensuring that the circuit board could not be oriented incorrectly.

Example




Here is an error proofing example for an electronic assembly, where the circuit board cannot be oriented incorrectly –

error proofing example - printed circuit board assembly

error proofing example - printed circuit board assembly

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