Today Lets learn what is FishBone diagram and how to use it….
Description
When to Use a Fishbone Diagram
Fishbone Diagram Procedure
Materials needed: flipchart or whiteboard, marking pens.
Agree on a problem statement (effect). Write it at the center right of the flipchart or whiteboard. Draw a box around it and draw a horizontal arrow running to it.
Brainstorm the major categories of causes of the problem. If this is difficult use generic headings:
Methods
Machines (equipment)
People (manpower)
Materials
Measurement
Environment
Write the categories of causes as branches from the main arrow.
Brainstorm all the possible causes of the problem. Ask: “Why does this happen?” As each idea is given, the facilitator writes it as a branch from the appropriate category. Causes can be written in several places if they relate to several categories.
Again ask “why does this happen?” about each cause. Write sub-causes branching off the causes. Continue to ask “Why?” and generate deeper levels of causes. Layers of branches indicate causal relationships.
When the group runs out of ideas, focus attention to places on the chart where ideas are few.
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