Analytic Hierarchy Process Based on Ordinal Scale

Abstract

Analytic Hierarchy Process(AHP), being used in decision making of various problems, is a method based on ratio scale. However, there are some problems in the use of the traditional AHP. We intend to solve those problems in this paper. We propose an AHP method based on ordinal scale which is appropriate to deal with subjective and qualitative criteria. We also consider methods of evaluation suitable for the ordinal-scale-based AHP. Fuzzy algebraic evaluation and fuzzy integral evaluation using the Sugeno integral are described. Finally, we show an example to illustrate the proposed methods.