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Root Cause Analysis


									Root Cause Analysis
          How do you start?

 First   define the performance gap

 Thenwork to determine the root
 cause of the gap
Don’t treat the SYMPTOMS
  of the performance gap

Address the ROOT CAUSE
  of the performance gap
 Identifying the “true
   cause” allows the
performance gap to be
Tools for process improvement

 Cause    and Effect
 Five   Why Technique
 Pareto   Analysis
 Brainstorming
    Cause and Effect Diagrams
   Also known as Fishbone or Ishikawa Diagrams
   First clearly describe the performance gap
   Next choose major cause categories
   Then brainstorm each category seeking the root
    cause of the performance gap
         Fishbone Diagram

   All stakeholders can participate in the process
   The major causes (the bigger bones) define
    the brainstorming areas
   Each major cause leads to a sub-cause (the
    smaller bones) and leads to more detail
   Considering ALL categories (or bones) is
    important as the root cause of a performance
    gap is not always the most obvious
        Five Why Technique
   This is a question-asking method
   It is used to explore the cause/effect
    relationships in a performance gap
   The method was developed by Sakichi
    Toyoda and has been used by Toyota Motor
          Five Why Technique
   Steps include:
       Write down the problem
       Ask and answer - WHY does this happen?
       Turn each answer into the next WHY
       Repeat for FIVE iterations (or more)
       Keep track of relationships between cause
        statements and the next level of WHY
           Pareto Analysis
   Named after Vilfredo Pareto
   Pareto chart displays relative importance of
    collected data
   Pareto Principle states that 80% of effects
    are the result of 20% of causes
   A Pareto Chart defines that the most frequent
    event is NOT always the most important
              Pareto Analysis

   Data categories listed in descending order from left to
    right at the bottom of the graph
   Left vertical axis is frequency of occurrence
   Right vertical axis is the cumulative percentage of the
    total number of occurrences
   Purpose is to highlight the MOST important cause
    among the factors
   A group process to gather ideas

   To arrive at a solution the group agrees on:
        consensus
       majority voting
       third party validation

   An agenda for brainstorming
       Agreement on the central question
       Everyone suggests an idea
       Facilitator records suggestions
       Group generates details ideas for each suggestion
       Group reviews the complete list for clarity and
       Using the agreed upon method seeks a solution
     Seek solutions to
performance gaps through
  Root Cause Analysis!

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