Generalized TODIM method and its application in material selection process

• Published in: AIP conference proceedings Vol. 2484; no. 1
• Main Authors: Rosli, N. N. N. Che, Yusoff, B.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Melville American Institute of Physics 23.03.2023
• Subjects: Decision making; Materials selection; Multiple criterion
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0109942

TODIM (an acronym in Portuguese for Interactive and Multi-criteria Decision Making) is one of the methods developed to deal with complex decision-making processes. The main feature of TODIM is its effectiveness in modelling the psychological behaviour of experts. The method is based on the Prospect Theory (PT), where the S-shaped growth curve represents its value function. Numerous studies have been conducted on improving the TODIM method to address the multi-criteria problem and the multi-expert problem in decision-making under risk and uncertainty. Nevertheless, the method has suffered from several shortcomings, which may produce counter-intuitive results and rank reversal problems. The generalized TODIM has been proposed recently to overcome these shortcomings. In this work, two paradoxes: weight consistency and weight monotonicity in the TODIM method, are examined. Then, we show that the generalized TODIM method satisfies these two properties compared to the TODIM method. Finally, a numerical example of the material selection process is applied to analyse and validate these results.