Multi criteria decision making (MCDM): management of aggregation complexity through fuzzy interactions between goals or criteria

Rudolf Felix

Since fuzzy set theory has been suggested as a suitable conceptual framework of decision making many different approaches have been developed. However, the subject of the complexity of the aggregation process and/or of the aggregation operations is rather not discussed. Complex real world applications on the other hand do not excuse such a lack. In this paper it is discussed in which way a decision making approach based on interactions between goals helps to manage aggregation complexity. The management of aggregation complexity is explained and compared with the way how related approaches deal with complexity. Two challenging research topics are suggested. These topics may help to close the gap between these approaches and the approach presented in this paper.

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