Sensitivity Analysis in the QUALIFLEX and VIKOR Methods

Subject Areas : Design of Experiment

Alireza Alinezhad ¹ , Nima Esfandiari ²

1 - Department of industrial engineering, Islamic Azad University of Qazvin, Iran
2 - Department of industrial engineering, Islamic Azad University of Qazvin, Iran

Received: 2011-04-12 Accepted : 2011-08-22 Published : 2012-03-15

Keywords: Sensitivity analysis, Multi-criteria decision making, QUALIFLEX, VIKOR, Multi-attribute Decision Making,

Abstract :

The sensitivity analysis for multi-attribute decision making (MADM) problems is important for two reasons: First, the decision matrix asthe source of the results of a decision problem is inaccurate because it sorts the alternatives in each criterion inaccurately. Second, thedecision maker may change his opinions in a time period because of changes in the importance of the criteria and in the policy of theorganization over time. This in turn makes problem solving really time-consuming. Therefore, the best solution is to do sensitivity analysis.In this regard, this paper considers a sensitivity analysis in the QUALIFLEX method which is a compromise ranking method used formulti-criteria decision making (MCDM).