Tools for Finding Root Cause?

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Tools for Finding Root Cause?
Amran, Malaysia, Member
Which tool is preferable in Six Sigma methodology to detect or find the root cause from special cause variation and then solve accordingly? And how to differentiate if the tool is suitable to use for common cause variation or special cause variation? Thanks for your help......Register

Check Data
Miranda, Consultant, Netherlands, Member
I would say that you could check the data using a histogram. If the RC mentioned does not appear regularly / more than once in a larger period ...

Cause-effect Diagram & Relationship Diagram
Pashupati Nath verma, Professor, India, Member
Cause-effect diagram, also known as Fishbone diagram, proposed by Ishikawa, helps in identify...

Problem Solving
Amran, Malaysia, Member
Thank you Miranda. I would conclude the histogram and control chart are able to detect and differentiate the common and special cause. And to i...

Ishikawa Diagrams
Mike Watson, Manager, United Kingdom, Member
I find Ishikawa valuable and use it a lot in my work in the aircraft industry. However I would caution its use for definitive root cause analysis as y...

A Mix of Techniques Depending on Problem
Jagdish B Acharya, Consultant, India, SIG Leader
Statistics can point out that the problem is due to assignable causes but cannot tell anything about the causes. For that one has to have technical kn...

Tools for Finding Root Causes
Cristian Bleotu, Business Consultant, Romania, Member
Hi Amran, basically you've got the answer from miranda and jagdish:
1. Identify special cause variation using control chart (if exclude it...

Software Tools for Finding Root Causes
Gary Westerdale, Management Consultant, United States, Member
Two tools for root cause analysis are;
- Taproot
- Apollo
Both have methodologies and associated software....


Special Interest Group Leader
Jagdish B Acharya

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