Scoring model: This model selects an alternative which has the highest score (or the maximum utility). Simple additive weighting, hierarchical additive weighting and interactive simple additive weighting belong to this model.

Compromising model: This model selects an alternative, which is closest

to the ideal solution: TOPSIS , LINMAP and nonmetric MDS belong to this category.

Concordance model: This model arranges a set of preference rankings, which satisfies a given concordance measure. Permutation method, linear assignment method, and ELECTRE are considered to be in this model.