Work Guidelines: Fishbone Diagrams
The fishbone diagram is one method for finding the "root cause" of
a problem. Each "spine" in a fishbone represents a contributing cause
to the problem.
Once you have defined the root causes, you should prioritize which one
contributes the most to the problem. Typically, the 80-20 rule applies, meaning
20 percent of the root causes contribute to 80 percent of the problem.
Once you have identified 20 percent of the root causes, it is often helpful
if you build other spines to better understand how you can address these causes.
Example of a fishbone diagram for a
Recycling Machine system.
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