Root Cause Analysis


Getting to the root cause of a problem is the first step taken to understand how to fix the problem. After all, if you do not know what is causing the problem, how are you going to fix it?

Ask Why 30 Times

Certified Reliability Engineer Mark Galley takes this methodology one step further. Expanding on the Five Why principle, Galley suggests that asking 20 or 30 why questions can lead to a better understanding of the root problem. In fact, this twist on the Five Why principle can uncover a series of root causes, allowing the team to focus on the most valuable problem.

titanic-cause-map2Process Mapping in Excel

Presenting at the 2016 Mile High Lean Summit, Galley used the Titanic Cause Map analysis from the Think Reliability resource center. Perhaps one of the key takeaways was that Galley did all of his process mapping in Excel. As Galley states, what software does nearly every business manager in the world have on their computer?

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