the 5 whys presentation
TRANSCRIPT
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THE 5 WHYSFINDING THE ROOT CAUSE
(OF THE PROBLEM)
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Asking WHY 5 Times – provides a focus on finding the true root cause of a problem versus reacting to a symptom and implementing a band aid like fix.
THE 5 WHYSsurefoundationsllc.com
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Repeating WHY 5 times…By asking WHY 5 times and answering it each time, we can get
to the real cause of the problem, which is often hidden behind more obvious symptoms.
Taiichi Ohno
The Father of the Toyota Production System
THE 5 WHYSsurefoundationsllc.com
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The number 5 is not mandated, but rather a suggested investigational level to uncover the root cause. Sometimes the probing may be beyond 5 WHYS, which is okay.
THE 5 WHYSsurefoundationsllc.com
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When it is less then asking WHY 5x, then we succumb to jumping to a quick resolution and most likely falter in uncovering the real root cause of the problem.
THE 5 WHYSsurefoundationsllc.com
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Focus on Problems being Opportunities:
Information (data collected) is to be used for
Improvement, Not Judgment
THE 5 WHYSsurefoundationsllc.com
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THE 5 WHYS
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TRAINING EXAMPLE
The following example reflects the sequence of steps in applying the 5 WHYS (a lean methodology tool) to uncover the root cause of the problem.
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TRAINING EXAMPLE
For every WHY question you have a BECAUSE statement.
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TRAINING EXAMPLE
The best way to obtain someone’s interest in a subject is to find topics or examples that connect to them.
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TRAINING EXAMPLE
Create a fun example first, to achieve concept knowledge, then identify your real world problem.
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TRAINING EXAMPLE
The following is a “real” experience that may have happened to you.
Names and faces have been changed to protect the innocent.
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WHY #1
WHY is the chicken taking so long to grill?
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CAUSE #1
BECAUSE the flame went out during cooking.
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WHY #2
WHY did the flame go out?
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CAUSE #2
BECAUSE the propane tank must be empty.
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WHY #3
WHY is the propane tank empty?
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CAUSE #3
BECAUSE the propane was used up at the last barbeque and there is no gage indicating how much fuel is left.
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WHY #4
WHY is there no fuel gage on the tank?
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CAUSE #4
BECAUSE the tank does not come with a gage.
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WHY #5
WHY doesn’t the tank come with a fuel gage?
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CAUSE #5
BECAUSE the industry standard allows for no gage to be acceptable. Gages are a customer accessory.
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WHY #6
WHY don’t you install an accessory gage on the tank gas line?
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CAUSE #6
BECAUSE usually a spare tank is available.
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WHY #7 Information is used for Improvement, Not Judgment
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WHY #7
WHY did I know it was your fault for not having a spare tank and now the chicken is not cooked on time and our guests are waiting?
Information is used for Improvement, Not Judgment
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CAUSE #7
BECAUSE you are always right dear.
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YOUR TURN
Disregarding WHY #7, you should be able to see the logical sequence of events in determining the root cause.
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YOUR TURN
Using this simple lean tool is a easy way to engage everyone in your organization to get to the root cause of your problems.
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YOUR TURN
You will be surprised with the improvements you make. Laughter is optional, success is not.
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YOUR TURN
What are you waiting for?
Go to where your problem exists and apply the 5 WHYS to the condition.
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