A fishbone diagram, as the name implies, is a representation of a fish skeleton.
Underlying problems of the Fish head:
The underlying problem is represented by the fish's head (facing right), and the causes are represented by the bones of the skeleton; the ribs branch off the back and represent major causes, while sub-branches represent root causes.
The 4M method identifies and groups causes that have an impact on a specific effect. The 4M categories (Material, Method, Machine, and Man) are frequently used in Kaoru Ishikawa's Cause-Effect
What is a Fishbone Diagram ?
A fishbone diagram is a cause-and-effect discovery tool that assists in determining the cause(s) of defects, variations, or failures in a process.
In other words, it aids in the breakdown of root causes that may contribute to an effect in successive layers.
A fishbone diagram, also known as an Ishikawa diagram or cause-and-effect analysis, is one of the primary tools used in root cause analysis.
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