Abstract
Poka‐yoke (mistake‐proofing) is a powerful quality improvement approach, which usually employs relatively simple devices to achieve marked improvements. Inexpensive jigs, fixtures, switches, and gauges act as obvious environmental cues to signal mistake detection. Poka‐yoke has been largely ignored as an avenue for serious academic research. This paper provides scientific underpinning to the largely anecdotal mistake‐proofing literature, by drawing upon research from psychology and cognitive science concerning human error. We delineate areas where additional research would be worthwhile, and guide practitioners in understanding what they are trying to accomplish and how poka‐yoke devices attain this end.
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