Determining weights of criteria for decision Making

Abstract

Multi-Criteria Decision Making (MCDM) is to find a way to find alternatives of decision. The best alternative is acquired by multiplying weighted values and chosen criteria. The alternative with the highest values of the sums of the multiplying results of both values is the best one. Thus, beginners or decision makers need to understand about the acquisition of these two parts. This article studies four different methods of weighting: a ranking method, a rating method, a pairwise comparison method and a trade-off method. The study found that the ranking method was the simplest method and the pairwise comparison method was highly accurate and most popular. In addition, it was found that determining the weights of the four criteria were similar: comparing each criterion and then determining levels of liking or satisfaction by the decision makers.