Friday, 5 June 2015

5 WHY'S IN SIX SIGMA





The 5 Why's typically refers to practice of asking , five times , Why the failure has occurred in order to get the root cause of the problem.





It is an iterative Question - asking technique used to explore the cause-and-effect relationships underlying a particular problem.





Example of 5 Why's :--





1.)  Why is Tom injured..?

Because he had a fall





2.)  Why did he fall..?

Because the floor was wet





3.)  Why was the floor wet..?

Because there was a leaking valve





4.)  Why was the valve leaking..?

Because there was a seal failure 






5.)  Why did the seal fail..?

Because it is not maintained




;)








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