5 Whys

Definition: the 5 Whys is an iterative root cause analysis technique which works by repetitive asking 'Why?', exploring the cause-and-effect relationships underlying a particular problem.
The primary goal of the technique is to determine the root cause of a defect or problem. Typically this should be a broken process or an alterable behavior.
Although the number of 5 iterations has proven sufficient to arrive at the root cause, this should not be taken as a fixed rule; sometimes a 6th or 7th question may be needed.
The tool is used - often in combination with an Ishikawa Diagram - within Toyota Production System, Kaizen, Lean Manufacturing and Six Sigma projects.

Learn more about the 5 Whies

More on manufacturing: Changeover, Contract Manufacturing, Cradle to Cradle, Experience Curve, Five S, more...

You may also like: Full-time MBA, Executive MBA, Executive Education, Online MBA.

MBA Brief offers concise, yet precise definitions of concepts, methods and models as taught in a study Master of Business Administration.

We like to keep things short, and provide links to learn more about your subject.

Add MBA Brief to your desktop / iPad