Step 5: Calculate a Consistency Ratio
The consistency of the subjective input in the pairwise comparison matrix can be measured by calculating a consistency ratio. A consistency ratio of less than 0.1 is good. For ratios which are greater than 0.1, the subjective input should be re-evaluated.
Step 6: Develop a Priority Matrix
After steps 2 through 5 has been performed for all criteria, the results of step 4 are summarized in a priority matrix by listing the decision alternatives horizontally and the criteria vertically. The column entries are the priority vectors for each criterion.