Σύγκριση μεθόδων

	Προσέγγιση Ορθολογικής Προτεραιότητας	Μέθοδος Καλύτερου-Χειρότερου
Πεδίο	Λήψη Αποφάσεων	Λήψη Αποφάσεων
Οικογένεια	MCDM	MCDM
Έτος προέλευσης	1977	2015
Δημιουργός	Ward Edwards and collaborators	Rezaei, J.
Τύπος	Ordinal ranking-based weight derivation	Pairwise comparison (best-to-others + others-to-worst vectors), LP
Θεμελιώδης πηγή	Edwards, W. (1977). Use of multiattribute utility measurement for social decision making. In D. E. Bell, R. L. Keeney, & H. Raiffa (Eds.), Conflicting objectives in decisions (pp. 247-307). Wiley.	Rezaei, J. (2015). Best-worst multi-criteria decision-making method. Omega
Εναλλακτικές ονομασίες	OPA, Ordinal Priority	—
Συναφείς	4	8
Σύνοψη	The Ordinal Priority Approach (OPA) is a family of methods that derive criteria weights directly from ordinal rankings rather than cardinal (numerical) preferences. Instead of asking decision-makers to assign exact weight values or ratio comparisons, OPA asks only: which criterion is most important, which is second, etc. The method then converts this ordinal ranking into numerical weights using geometric or statistical formulas.	BWM (Best-Worst Method) is a weight subjective multi-criteria decision-making (MCDM) method introduced by Rezaei, J. in 2015. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.