Analysis · beginner · 45 min

Fishbone Diagram

The Fishbone Diagram (also known as Ishikawa Diagram) helps visualize potential causes of a problem by categorizing them into major areas. It's useful for identifying a wide range of contributing factors.

What participants gain

  • Identify potential causes of a project delay.
  • Categorize causes into major areas (e.g., People, Process, Technology).
  • Visualize the relationships between causes and the problem.

Materials needed

  • Whiteboard or large paper
  • Markers
  • Sticky notes
  • Timer

How to run Fishbone Diagram, step by step

  1. 1. Draw the 'fishbone' diagram with the problem statement (project delay) at the 'head'.
  2. 2. Identify the major categories of potential causes (e.g., People, Methods, Machines, Materials, Measurements, Environment).
  3. 3. Draw 'bones' representing each category branching off the 'spine'.
  4. 4. Brainstorm potential causes within each category and add them as 'smaller bones' branching off the main bones.
  5. 5. Analyze the diagram to identify the most likely root causes.
  6. 6. Prioritize the root causes based on their impact and likelihood.
  7. 7. Develop action plans to address the prioritized root causes.

Facilitator tips

  • Encourage participants to think broadly and consider all potential causes.
  • Use the 6 Ms (or other relevant categories) as a starting point but don't be limited by them.
  • Focus on identifying specific and actionable causes.

Common challenges

  • Getting stuck on one category - Encourage participants to explore other categories.
  • Identifying symptoms instead of root causes - Probe deeper to uncover the underlying issues.
  • Too many ideas - Focus on the most likely causes based on data and experience.

Running it virtually

Use a virtual whiteboard tool like Miro or Mural that offers Fishbone Diagram templates. Participants can add sticky notes to the diagram collaboratively.

Expected results

A visual representation of the potential causes of the project delay, categorized by major areas, leading to a comprehensive understanding of contributing factors.

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