Tools for Finding Root Cause?

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Six Sigma > Best Practices > Tools for Finding Root Cause?

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... (...) Read more? Sign up for free

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  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 of time, it would most likely be a special cause variation.
Next to that I would recommend to always ask the employees who participate in the process: if they have been working within that process for quite some time, they will be able to judge and advise if it's common cause or special cause variation.
To statistically see the difference, you can use a control chart (minitab).
Outliers (above or under the ucl/lcl) need to be investigated and prevent it from happening again.
Note: process should be stable and predictable in order to recognise valid outliers.
Hope this helps, good luck!

  Cause-effect Diagram & Relationship Diagram
Pashupati Nath verma, Professor, India, Member
  (...)

  Problem Solving
Amran, Malaysia, Member
  (...)

  Ishikawa Diagrams
Mike Watson, Manager, United Kingdom, Member
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  A Mix of Techniques Depending on Problem
Jagdish B Acharya, Consultant, India, Member
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  Tools for Finding Root Causes
Cristian Bleotu
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  Software Tools for Finding Root Causes
Gary Westerdale, Management Consultant, United States, Member
  (...)

   
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Six Sigma
Summary
Forum
Evaluating Six Sigma Project Leaders
🔥Sustaining Momentum of Process Improvement over Time
Six Sigma Approach Part I
Next Step after Voice Of Processes have been Defined?
Best Practices
🥇3 Additional Six Sigma Levels
🥈The Basis of Six Sigma? Statistics and Discipline
🥉Six Sigma Organization Structure
Six Sigma in an R&D context
The 5 x Why Method (The 5 Whys)
Focus of Six Sigma: The 6 Rights
Is Six Sigma Enough? (To Improve the Quality Level of an Organization...)
Statistical Process Control (SPC)
Tools for Finding Root Cause?
Evaluating Six Sigma Projects
Six Sigma DMAIC and DMADV
Six Sigma for Marketing
Six Sigma Requirements
Add Standardization to DMAIC Phases in Six Sigma (DMAICS)
Hypothesis Testing in DMAIC Projects
Identifying Critical Characteristics
Six Sigma in Medical Transcription
Differentiating Six Sigma from TQM
Six Sigma is a Story!
Best Practices Lean Six Sigma in Social Care
Quality Lessons in Dealing with Contractors
Six Sigma Implementation Roles
Six Sigma Manufacturing Example
Six Sigma Dictionary - Six Sigma Terms
Six Sigma for Retail
The Cost of Poor Quality: Tools for Effective Control & Reduction
Six Sigma in Textile / Confection Industry
6 Sigma in Construction Industry
6 Sigma....Frame period
Six Sigma Effectiveness
Six Sigma Implementation Process
Six Sigma in Passengers Handling
Good Practitioner Books on Lean - Six Sigma, S&OP?
Organizational Development + Six Sigma or Lean
Should Six Sigma start after Lean Implementation?
Six Sigma In Inbound Call Center
Disadvantages of Lean Six Sigma. Drawbacks
Lean 6 Sigma in Laboratories
Lean Management in Retail
Quality Critical Factors
Six Sigma Black Belt Certification
Applying Six Sigma to Landscape Architecture
Six Sigma Department


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