5 why method

QM method to determine the actual causes of nonconformity. The respective answer is then used to formulate the next in-depth question about the cause.

These in-depth questions are repeated until the root of the cause has been found. This puts the user in a position to develop effective corrective measures that should permanently stop the problem from being repeated. This approach can also be applied to potential nonconformities and malfunctions and is thus also a tool in FMEA development

Glossary Technical terms at a glance