Ishikawa Diagram (Fishbone Diagram)

The Ishikawa diagram, or fishbone diagram, is a visual tool that helps identify and categorise the causes of a complex problem. It enables teams to structure their thinking and focus on root causes rather than symptoms. This game promotes collaboration and encourages a systematic approach to problem-solving.

Walkthrough

1. 1

   Introduction to the Ishikawa Diagram

   10 min

   The facilitator begins by explaining the concept of the Ishikawa diagram and its usefulness for analysing the causes of a problem. They present a simple example to illustrate how causes are categorised and invite participants to ask questions. The goal is to ensure that everyone fully understands the tool before using it.

   Tip — Use a concrete and simple example so that participants can easily visualise the concept.

2. 2

   Defining the Problem

   10 min

   The facilitator asks participants to propose a concrete problem they wish to work on. Once the problem is chosen, it is written at the head of the diagram. It is crucial that the problem is formulated clearly and precisely to effectively guide the analysis.

   Tip — Encourage participants to choose a problem that directly concerns them to maximise their engagement.

3. 3

   Identifying Categories of Causes

   15 min

   The facilitator guides participants to identify the main categories of possible causes (for example: methods, materials, workforce, environment, measurement, material). These categories are written as main branches of the diagram. This helps structure the thinking and ensures that important dimensions are not overlooked.

   Tip — Adapt the categories based on the context and industry of the participants.

4. 4

   Brainstorming Potential Causes

   20 min

   Participants are invited to propose potential causes for each category. The facilitator notes these causes on the diagram, linking them to the corresponding branches. This brainstorming should be free and non-judgmental to encourage creativity and completeness.

   Tip — Use post-it notes to allow for easy reorganisation of ideas as the activity progresses.

5. 5

   Analysis and Prioritisation of Causes

   15 min

   Once all causes are identified, the facilitator guides participants to analyse and prioritise those that seem most influential. They can vote or discuss to determine which causes to focus on for future actions.

   Tip — Use sticky dots for a quick and visual vote on priority causes.

6. 6

   Action Plan

   10 min

   The facilitator helps the group develop an action plan to address the identified priority causes. Each action should be specific, measurable, achievable, realistic, and time-bound (SMART).

   Tip — Ensure that each action has a designated responsible person to guarantee follow-up.

Variants

• Use digital tools like Miro or MURAL to create the diagram remotely.
• Adapt the categories of causes based on a specific sector (e.g., IT, production).
• Combine this exercise with a SWOT analysis for a more comprehensive overview.