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Matrix Diagram: When to use it

The Quality Toolbook > Matrix Diagram > When to use it

When to use it | How to understand it | Example | How to do it | Practical variations

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When to use it

• Use it when comparing two lists to understand the many-to-many relationship between them (it is not useful if there is a simple one-to-one relationship).
• Use it to determine the strength of the relationship between either single pairs of items or a single item and another complete list.
• Use it when the second list is generated as a result of the first list, to determine the success of that generation process. For example, customer requirements versus design specifications.

Fig. 1. Using the Matrix Diagram in problem solving

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