GenDI

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Method

Best-Worst Method

Weight your criteria from just two reference comparisons, with fewer judgments and higher consistency than classic pairwise methods.

The founder

Jafar Rezaei

Delft University of Technology · Operations researcher

A professor at TU Delft, Rezaei introduced the Best-Worst Method in 2015. His idea: anchor every judgment to the single best and single worst criterion, so the comparisons stay coherent and far fewer are needed.

BWM (2015)Omega journal2n−3 comparisons

The idea

Two reference comparisons

BESTCostQualityServicePriceWORSTDeliveryBest-to-OthersOthers-to-Worst

In five steps

1

Pick best & worst

Name the most and least important criteria.

2

Best-to-Others

Rate the best vs each other on 1–9.

3

Others-to-Worst

Rate each other vs the worst on 1–9.

4

Optimize weights

Min-max solve for optimal weights.

5

Check consistency

A built-in consistency ratio.

Fewer comparisons

For 6 criteria, vs full pairwise (AHP)

BWM
9
AHP
15

Example weights

Optimal criteria weights from BWM

Cost
48%
Quality
34%
Delivery
18%

Weight your criteria with BWM.

Fewer comparisons, AI-guided, consistent by design.

Start deciding free →

Rezaei, J. (2015). Best-worst multi-criteria decision-making method. Omega, 53, 49–57.