I have used other tools to identify root cause – for example 5 Whys, Ishikawa Diagrams. Are these methods for verifying root cause?

The 5 Whys and the Ishikawa (Fishbone) Diagram are two of the best tools to use in the Analyze Phase. They both enable “Structured Brainstorming.” The Ishikawa allows a group of people to brainstorm potential root causes to a problem, and then the 5 Whys helps you move past symptoms to what might be the…