root cause presentation

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Root Cause Analysis (Or “How I learned to stop worrying and love problems”)

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Root Cause Analysis(Or How I learned to stop worrying and love problems)

Root Cause Analysis What is it?In simple terms.Root Cause analysis identifies what, how, and why something happened, thus preventing recurrence.Sounds easy doesnt it - it isnt.Identifying severe weather as a root cause of parts not being delivered to your customer is not appropriate.Its easy to stop too early and not understand the true root cause.

Root Cause Analysis What is it?Cure, not patch.In medicine, we are used to doctors working to identify the medical condition, rather than just treating the symptoms.Just taking pain killers wont cure a broken wrist, and other treatment is needed to ensure the damage is fixed rather than just patching up the problem.The same applies to QualityWhen something goes wrong, we could put a simple fix in place and kid ourselves that it wont happen again, but its likely that the problem with recur.

Root Cause AnalysisGenerally, mistakes do not just happen, but can be traced to some well-defined causes.Was the process confusing?Were the parts clearly labelled?Was the operator familiar with the task?

But how do we get to that root cause?

Root Cause Analysis: 5-WhysWhat is 5-Why?5-whys is a structured method of determining the root cause of a problem.You ask why five times. Thats it!!Each answer takes you closer to the root cause.You my not need to ask why that many times, but generally you should ask at least three times.

Root Cause Analysis: 5-WhysProblem Statement: My car stopped on the way to work.Why did it stop?Because it ran out of petrol.Why did it run out of petrol?Because I didnt buy any on the way to work.Why didnt you buy any?Because I didnt have any money.Why didnt you have money?Because I lost it all in a poker game.Why did you lose?Because Im rubbish at bluffing when I have a bad hand.So my car ran out of petrol because Im rubbish at poker!!

Root Cause Analysis: 5-Whys5-Whys is a quick and useful tool to identify what is likely to be the root cause.

Task: watch the following video and determine the root cause.

TaskWatch the video and determine the root cause of the final action.

Root Cause Analysis - TaskWhy did the dog attack the monkey?Because the monkey pulled the dogs leg.Why did the monkey pull the dogs leg?Because the dog was looking at its tail.Why was the dog looking at its tail?Because the monkey had pulled it.Why had the monkey pulled the dogs tail?Because its a huge jerk!In only four whys we have established that the dog attacked the monkey because it is a huge jerk!

Root Cause Analysis next stepsWe have understood why it is important to establish the root cause.We have established a simple yet effective method of establishing the root cause.We now need to establish a method transmitting and following the corrective actions.Welcome to the world of 8D!