5 Whys is one of the most commonly used quality system tools. It is a simple and methodical way to identify the root cause of an issue.
The real value of the process is that it drives you to find and solve the underlying cause of the issue not just the obvious symptom.
- Step 1: Agree on the Problem Statement
- Step 2: Ask “Why Did This Happen?”
- Step 3: Check – Is This a Root Cause?
- Step 4: Fix the Underlying Cause, and Correct the Symptom