Defects emerge because of errors – invariably human errors. To “mistake proof” is to reduce the likelihood of something going wrong which would result in an error. Mistake Proofing, sometimes called “poka-yoke,” was developed by Shigeo Shingo in the 1960s to prevent human errors in industrial processes. Countermeasures alert users when errors are about to be made or prevent errors from becoming a defect (e.g., not allowing an intake form to be submitted if a required field is missing). Mistake Proofing is used in conjunction with flowcharting, with analysis and safeguards built-in wherever necessary throughout the process, and is well-suited to Kaizen Process Improvement Events
. This tool was developed by PHF Senior Quality Advisor John W. Moran
and PHF quality improvement expert Sonja Armbruster
. Click here
to see the full tool.
About the Public Health Quality Improvement Encyclopedia