Used Mercedes option rating from Step 4 cost matrix = 0.33 New Chevrolet option rating from Step 4 cost matrix = 0.12 In each cell, multiply the criteria weighting values (found at the top of each column) by the option rating from each matrix in Step 4. Multiply criteria weighting and option ratings Write each option at the beginning of a row.ī. List your criteria at the top of each column, along with their respective criteria weighting values from Step 3. Using another L-shaped matrix, compare each option based on all combined criteria. ![]() You may find it helpful to put your option ratings from each matrix into a single table to minimize confusion. These relative decimal values indicate how well each option meets a given criterion-they are now called your " option ratings." B. There will be as many matrices as there are criteria. Repeat this step with each criterion (cost, reliability, efficiency, desirability) using the same options and weighting method, until you have a matrix for each criterion. ![]() In some cases, this mean "more" of something (e.g., importance, reliability, educational value), and in others it may mean "less" (e.g., cost, travel time). Remember: A whole number (10, 5, 1) should always represent the "desirable" rating. Use weights to indicate which option better meets the matrix's single criterion. Using the same weighting and method as above, place one criterion in the upper left corner of its own matrix, and weigh options against each other. ![]() Use a set of matrices to weigh options within given criteria, in order to start deciding which options best meet your criteria. You will use criteria weighting to compare options at the end of the process, in Step 6. These relative decimal values indicate how relatively important each criterion is to you-they are now called your " criteria weighting." When finished, total each horizontal row and enter the sum under "Row Total." Add all row totals to reach a grand total.ĭivide each row total by the grand total, and enter this under "Relative Decimal Value." The reciprocal value of 5 is 0.2 this shows that cost is less important (0.2) than reliability.Ĭontinue weighting the remaining criteria and recording reciprocal values. This indicates that reliability is more important (5) than cost.Įach time you record a weight in a row cell, you must record its reciprocal value in the corresponding column cell. ![]() Note: A whole number (10, 5, 1) should always represent the "desirable" rating. Use the following weighting system to indicate whether it's more important, and by how much: In this cell, ask yourself whether the criterion to the left (reliability) is more or less important than the criterion above (cost). (Since we can't compare a criterion against itself, we'll start in the second cell of the first column.) Write your criteria at the beginning of each row.īegin the process of deciding which criteria are more important. Add extra columns at the end for "Row Total" and "Relative Decimal Value" (you'll use those later). Write your criteria across the top of the columns. Use a matrix to weigh each criteria against another, in order to decide which criteria are most important.
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