"Ugh! I'm only human; I make mistakes. These cannot be prevented." We have heard this before. Is this acceptable? Let's challenge this human error paradigm to help get things correct and complete the first time!
Through our day, mistakes occur; from Selecting the wrong items, Omitting information, Providing wrong information, and of course, the Mises: Mis-reading, Mis-measuring, Mis-adjusting, Mis-aligning. These mistakes are small yet can have a large impact.
The Mistake Proofing method, a step by step improvement method helps a team redesign a process/product so errors CANNOT OCCUR. This includes:
Devices help redesign a process or piece of equipment so that it CANNOT be performed incorrectly. Consider all the devices for providing a credit card, or providing info with drop down options, or parts that only fit together one way. Here is another device we take for granted:
Error: Electrical plug oriented backwards.
Defect: Reversed electrical polarity.
Device: Make plug spades different width so reversed plug provides immediate feedback before inserting plug into outlet.