The Five Why's is a famous and useful tool for conducting a root cause analysis in problem solving. I've applied the idea of asking why five (more or less) times to get at the root cause and applied it to mind mapping. Since many problems have more than one cause, applying the process to a mind map keeps the door open for identifying many possible causes. While any one may appear to be the root cause, it is only in comparing all of them that you can clearly see the best opportunity. Here's the process that I use: Start your mind map by writing your problem in the center. (In the example above, Stairway Accidents is the problem.) Radiat out reasons why there is a problem. What are the causes? What causes that cause? ("what causes" is as useful as "why" and without the emotional turmoil.) For each cause, ask why it's true or what causes it. Why that cause? What causes that - and radiate out your answers. Some "what causes that" ma