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The ORESTE METHOD. Michel HERMAN December 2000. The aggregation of criteria. The ORESTE method. Additive rank order method to compare ordinal evaluations of actions on criteria. The ORESTE method. To be provided by the Decision Maker : * a total preorder on the criteria
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The ORESTE METHOD Michel HERMAN December 2000
The ORESTE method Additive rank order method to compare ordinal evaluations of actions on criteria
The ORESTE method To be provided by the Decision Maker : • * a total preorder on the criteria • * a total preorder on the actions for the criteria
The ORESTE method Example : 5 girls candidate hostesses ranked on 5 criteria
Preorder on the criteria Presentation - Elegance Verbal Expression Intelligence - Memory
Global ranks of the actions r(DIANA) = 4,5 + 6 + 18,5 + 23 + 24,5 = 76,5 r(PAULETTE) = 1,5 + 3 + 10 + 15,5 + 24,5 = 54,5 r(NADINE) = 7 + 8,5 + 11 + 12,5 + 20,5 = 59,5 r(EVE) = 1,5 + 4,5 + 12,5 + 17 + 22 = 57,5 r(LILI) = 8,5 + 14 + 15,5 + 18,5 + 20,5 = 77
The ranked global ranks Paulette 54,5 Eve 57,5 Nadine 59,5 Diana 76,5 Lili 77,0
The preference intensities C(P,D) = (4,5 - 1,5) + (18,5 - 3) + 24,5 - 15,5) = 27,5 et C(D,P) = (10 - 6) + (24,5 - 23) = 5,5