The tool within the "Assessing Opportunities" step of the Strategic Sourcing Process that graphically orders categories of numerical data in descending order so that the most important categories are easily recognized is called a:

Pareto chart

Explanation:

A Pareto chart can be regarded as bar graph, The lengths of the bars are been arranged having longest bars on the left, on the right is the shortest bar, with this arrangement the chart visually gives a depiction about which situations are more significant. The lengths of the bars gives a representation of frequency or representation of cost i.e time or money. It should be noted that Pareto chart is the tool within the "Assessing Opportunities" step of the Strategic Sourcing Process that graphically orders categories of numerical data in descending order so that the most important categories are easily recognized.

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