tailieunhanh - Modification of topsis method for solving of multicriteria tasks

This paper describes the possible modifications of one of the multi-criteria analysis methods that possess certain advantages in cases of solving the real business problems. We will discuss the TOPSYS method, whereas the modification reflects in change of the determination manner of the ideal and anti-ideal points in criteria environment, in standardization of quantification and fuzzycation of the attributes in cases of criteria expressed by linguistic variables. | Yugoslav Journal of Operations Research Volume 20 (2010), Number 1, 117-143 MODIFICATION OF TOPSIS METHOD FOR SOLVING OF MULTICRITERIA TASKS Zoran MARKOVIĆ PE PTT Communications "Serbia" Received: March 2005 / Accepted: February 2010 Abstract: This paper describes the possible modifications of one of the multi-criteria analysis methods that possess certain advantages in cases of solving the real business problems. We will discuss the TOPSYS method, whereas the modification reflects in change of the determination manner of the ideal and anti-ideal points in criteria environment, in standardization of quantification and fuzzycation of the attributes in cases of criteria expressed by linguistic variables. Keywords: Decision-making, multi-criteria analyses, attributes, fuzzy attribute description. 1. INTRODUCTION Modern operational methods in large hierarchy-structured business systems imply making numerous important business decisions in a short period of time, which means that managers are often forced to use specific tools in order to be able to make minimum risk in quality decisions. It could be said that the last quarter of the 20th century and the beginning of new millennium have flourished in various studies and researches aiming to develop the decision-making mechanisms and methods in situations in which relationships within the system and the environment are becoming ever more complicated and more dynamic and when the reaction time to actual or assumed dysfunctions becomes a considerable factor of success. The majority of business decisions are made in conflict or partially conflict criteria situations, in which cases the uni-criterion tasks' solving methods are almost inapplicable. Practice has imposed the development of new methods which have acknowledged the conflict quality of criteria or goals. This resulted in development of multi-criteria and multi-target methods of real problems' solving. Taxonomy of the multi-criteria tasks' .