the lean enterprise problem solving - 5 why’s approach lean foundations continuous improvement...
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The Lean EnterpriseThe Lean EnterpriseThe Lean EnterpriseThe Lean EnterpriseProblem Solving - 5 Why’s Approach
Lean Foundations
Continuous Improvement Training
Lean Foundations
Continuous Improvement Training
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The purpose of this module is to present the definition of 5 why technique;
the benefits 5-why;when 5 why is most useful.
Review a systematic example of 5 why.
Learning ObjectivesLearning Objectives Learning ObjectivesLearning Objectives
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Identifying Root CauseIdentifying Root CauseIdentifying Root CauseIdentifying Root Cause
• 5 why is a problem solving technique that allows you to get at the root cause of a problem fairly quickly.
• It was made popular as part of the Toyota Production System (1970’s.)
• Application of the strategy involves taking any problem and asking “Why - what caused this problem?”
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Identifying Root CauseIdentifying Root CauseIdentifying Root CauseIdentifying Root Cause
• By repeatedly asking the question "Why" (five is a good rule), you can peel away the layers of symptoms that can lead to the root cause of a problem. Very often the first reason for a problem will lead you to another question and then to another.
• Although this technique is called "5 Whys," you may find that you will need to ask the question fewer or more times than five before you find the issue related to a problem.
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BenefitsBenefitsBenefitsBenefits
It helps to quickly identify the root cause of a problem.
It helps determine the relationship between different root causes of a problem.
It can be learned quickly and doesn't require statistical analysis to be used.
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When is 5 whys most useful?When is 5 whys most useful?When is 5 whys most useful?When is 5 whys most useful?
When problems involve human factors or interactions.
In all types of business situations whether solving a lean manufacturing or for any other business problem.
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Example of 5 why analysisExample of 5 why analysisExample of 5 why analysisExample of 5 why analysis
Here is our "wheel" life example. Why is our largest customer unhappy? Because our
deliveries of bicycles have been late for the last month. Why have our bicycle deliveries been late for the last
month? Because production has been behind schedule. Why has production been behind schedule? Because there
is a shortage of wheels. Why are we having a shortage of wheels? Because
incoming inspection has rejected a large number of wheels for not being round.
Why are we rejecting so many parts? Because purchasing switched to a cheaper wheel supplier that has inconsistent quality.
Why …
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Learn more atLearn more atLearn more atLearn more at
http://www.dwassoc.com/5-whys.php
The Lean EnterpriseThe Lean EnterpriseThe Lean EnterpriseThe Lean EnterpriseProblem Solving - 5 Why’s Approach
Lean Foundations
Continuous Improvement Training
Lean Foundations
Continuous Improvement Training