ABSTRACT
In the Failure Mode Effects Analysis method, the three factors of Severity, Occurrence, and Detection are combined to create a risk prioritization. When people focus their energy on the high-risk operations, they will have a built-in bias to focus on the problems that have the greatest risk of harm. Success Every Time invests in error-proofing devices to help operators remember what to do, and help them do it right. When doing a job or making a part, there are three specific areas where the error-proofing needs to be focused. Three specific areas are Value-added actions, Job set-up elements and Processing parameters. Error-proofing devices prevent defective parts from existing, while mistake-proofing devices identify defective parts that exist. Both use poke-yoke devices, but the placement and intent differ. Mistake-proofing is always less effective than error-proofing because operators have to deal with correcting or disposing of the substandard part and this correcting or disposing is not always done correctly.
