Decision matrixes Assessment results obtained by questionnaires and scripted metrics can be mapped to decision matrixes. Assessment administrators can view and create these dynamically updated graphs, which make it possible to compare assessable records by category. Decision matrixes display data from a trailing twelve month (TTM) period. Note: Assessment administrators can access decision matrixes through the Assessment application and vendor managers can access them through the Vendor Performance application. Decision matrix components The decision matrix page has these components: Component Description Options Filter Select the subset of assessable records you want to view. The filter options available vary by metric type, based on the Filter field and Filter condition field settings for each type. The maximum values in the filter are controlled by the Maximum number of items to show for a decision matrix field filter property (com.snc.assessment.decision_matrix_filter_max_entries), which has a default value of 1000. Scale Select the scale for the decision matrix. The greater the scale, the larger the decision matrix appears. Decision matrix X- and Y-axes Each axis represents one or more metric categories. If multiple categories are used for an axis, their respective weights determine the positioning of the plotted items. Plotted items The labeled points you see on a decision matrix, called plotted items, represent averages of category result data for assessable records. Point to a plotted item label to view a rating summary for that assessable record. Click a plotted item label to view the scorecard for the assessable record. Plotted item rating summaries If you point to a plotted item label on a decision matrix, a rating summary appears. The summary displays the assessable record's average ratings for each axis. If an axis represents one metric category, the ratings are calculated averages from results for that category. If an axis represents multiple categories, the ratings are calculated averages from weighted results for all of the categories. The summary shows: Current rating Difference between the current rating and the rating from the previous year Ratings from each previous year, going back three years Figure 1. Decision matrix rating summary Create a decision matrixThe name and labels on a decision matrix are closely linked to the categories you choose for the axes. For that reason, first select the metric type and define the X and Y axes before you fill in other fields on the Decision Matrix form.