Cause and Effect , Fishbone, Ishikawa Diagram

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Cause and Effect , Fishbone, Ishikawa Diagram

• Be water my friend

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Cause and Effect , Fishbone, Ishikawa Diagram

• Total Quality Management (TQM) is a management
  strategy created to achieve excellence in quality
  in all organizational processes. TQM has been
  widely used in manufacturing, education,
  government, and service industries, as well as
  NASA space and science programs.

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TQM ToolsHere follows the basic set of Total
Quality Management tools

• Pareto Principle
• Scatter Plots
• Control Charts
• Flow Charts
• Cause and Effect , Fishbone, Ishikawa Diagram
• Histogram or Bar Graph
• Check Lists
• Check Sheets

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Cause and Effect , Fishbone, Ishikawa Diagram

• The creator was Kaoru Ishikawa, who pioneered
  quality management processes in the Kawasaki
  shipyards, and in the process became one of the
  founding fathers of modern management.
• It is simply a diagram that shows the causes of a
  certain event.
• It was first used in the 1960s.

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Cause and Effect , Fishbone, Ishikawa Diagram

• This is a useful tool to identify the causes of a
  problem. Its called Fishbone because of the
  resemble of the diagram with a fishbone, where
  the identified causes converge to a main branch,
  that leads to the result, or effect, which is the
  problem to solve.

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Cause and Effect , Fishbone, Ishikawa Diagram
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Cause and Effect , Fishbone, Ishikawa Diagram

• To complete an Ishikawa fishbone diagram or cause
  and effect diagram
• Put the problem statement in the head of the fish
  and the major causes at the end of the major
  bones. Major causes include
• Processes, machines, materials, measurement,
  people, environment
• Steps of a process (step 1, step 2, etc.).
• Whatever makes sense
• Begin with the most likely main cause.
• For each cause, ask "Why?" up to five times.

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Cause and Effect , Fishbone, Ishikawa Diagram

• This tool is specially efficient for capturing
  team brainstorming output and for attacking a
  problem from the wide picture. A fishbone
  diagram can become very complex, as the one shown
  in the next sheet.

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A fish bone diagram can become very complex