Sunday, January 4, 2009
Graphically illustrates the relationship between a given outcome and all the factor that influence this outcome. Sometimes called an Ishikawa or “fishbone diagram.” It helps show the relationship of the parts (and sub-parts) to the whole by:
Specific the effect to be analyzed. The effect can be positive (objectives) or negative (problems). Place it in a box on the right side of the diagram.
List the major categories of the factors that influence the effect being studied. The “4Ms” (methods, manpower, people, plant are commonly used as a starting point.

- Determining the factor that cause a positive or negative outcome (or effect)
- Focusing on a specific issue without resorting to complaints and irrelevant discussion
- Determining the root causes of a given effect
- Identifying areas where there is a lack of data
Specific the effect to be analyzed. The effect can be positive (objectives) or negative (problems). Place it in a box on the right side of the diagram.
--------------------> Problem
List the major categories of the factors that influence the effect being studied. The “4Ms” (methods, manpower, people, plant are commonly used as a starting point.