Re: Nonconformances and Defects - Operator Error, System Error, or both?
My two - cents, a factoid;
As I recall, long ago in a far away land, an industrious I.E. performed a test or series of tests involving inspectors or operators and how effective they were at catching defects.
As I recall the factoid - on their "best days", an inspector or operator would catch 80% of the defects in their work flow.