Shigeo ShingoZero Quality Control, 1986
Mistake-proofing devices that make errors impossible or immediately detectable at the source — inspection built into the process, not appended after it.
Lean canonTPS practice
Design the process so the wrong action cannot be completed — respect for workers means never relying on vigilance alone.
The EclipseFrontiers® LensBlame the design, not the human. Then fix the design.