Definition
Five Whys is a method of repeatedly asking why in order to move step by step from an observed problem towards its most likely root causes.
Human Explanation
Instead of stopping at the first answer, the method encourages people to keep asking why until the actual causes of the problem are revealed.
Why it Matters
The method helps separate symptoms from causes and directs attention to the source of a problem instead of its effects.
Conceptual Boundary
Five Whys does not mean that exactly five questions must always be asked. The number depends on the complexity of the problem and the available evidence.
Practical Perspective
The method creates the greatest value when every answer is based on facts and evidence rather than assumptions.