I've used them for root cause analysis. Sometimes it really does help when you are just absolutely clueless on what the problem could be. Other times, you end u

I've used them for root cause analysis. Sometimes it really does help when you are just absolutely clueless on what the problem could be. Other times, you end up just wasting time trying to figure out other branches that could be causing the problem when you already have a general idea of the cause. It can be an effective tool when used by the right person at the right time.