Brainstorm Root CausesUnderstand How To Use Five Whys & Fishbone Diagram

• Should we focus on the Y or the X?

The Foundation of Lean Six Sigma

The Five Whys

• The practice of asking the question ‘Why?’ repeatedly, in order to work the casual chain

• Usually carried out by a group of people related to the process

• No special technique is required

What Are The Five Whys?

Benefits Of The Five Whys:

• One of the simplest tools; easy to complete without statistical analysis

• Help identify the root cause of a problem

When is Five Whys Most Useful?

• When problems involve human factors or interactions

• In day-to-day business life

• A visual tool used to logically organize possible causes for a specific problem by graphically displaying them in increasing detail

• Helps to identify possible root causes and ensures common understanding of causes

• Causes are arranged according to their level of importance or detail

What Is A Fishbone Diagram?

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