The 5 Whys is used in the Analyze phase of the Six Sigma template of DMAIC. DMAIC stands for Define-Measure-Analyze-Improve-Control. Finding out the root cause of an issue is its primary focus. Just keep asking “why” and eventually you will discover the root cause. You can use this tool to get the root cause of any issue in any type of business or organization. Don’t let its simplicity fool you — this tool is a heavy hitter. See how it can be used in a real-world situation with a dog rescue in the infographic below!