A matrix diagram is typically used when you want to compare or see correlation between several groups of data. It can also be used when you want to show a relationship between items, this is shown where the line and column cross each other.

Benefits of Matrix Diagram

It is possible to look at the relationship between many elements, and compare the relationship with each other to which are stronger or weaker than others. This is for example used in the House of Quality (HOQ), where relationship between costumer requirement and design parameter is defined.

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Matrix Diagram