Matrix Diagram

What Is It Good For?

This tool helps compare the efficiency and effectiveness of alternatives based on the relationship between two criteria, for example performance and cost. It also is a useful way to set priorities, compare elements, or spot outlying data or extreme areas.

How Do I Use It?

Create a matrix diagram by aligning two criteria, one on each axis.

Alternatives

A matrix could be made in which needs and objectives are aligned on one axis and the screened solutions are aligned on the other. Balancing needs and objectives against possible solutions would yield a variety of alternative combinations.

A cost-performance matrix, for example, would chart the cost of an alternative on one axis and a measure of performance on the other axis. Placing alternatives on this matrix would show which alternatives provided the most effective performance for the least cost. An alternative high in cost and performance might be preferable to an alternative low in cost and performance.

Problem areas

By graphing elements on a matrix and shading in an acceptable range, you can quickly find problem or extreme areas. Align one need, objective, criteria, or other factor on one axis and align a measurement on the other. Then place each alternative on the chart.

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