What Makes a Good Poka-Yoke Panel

Poka-Yoke — "mistake-proofing" — sounds like a technology problem. It's really a human-factors problem.

A good Poka-Yoke panel flags the fault at the exact station where it happens, in the exact form the operator can act on: a specific bin lights up, a specific fixture locks out, a specific bay-door won't open until the missing fastener is installed.

Do it wrong and operators route around the panel. Do it right and the defect rate drops so hard the panel pays for itself in three months.

The trick is designing the panel around the actual failure modes on the line — not around the ones you imagine at the whiteboard.