Published: Oct. 8, 2011

This paper presents the most recent evolutionary lines in operational research, through a review of the basic principles that guide this field of research. In broad terms, some emphasis is given to the fact that Multiple Criteria Decision Analysis (or Aid) (MCDA) takes into account that decision-making processes are complex and composed of several actors with different perceptions and value systems, stressing that this approach highlights the limits of objectivity, and considers the possibility that some problems may not have an optimal solution. In this vein, it is beyond the scope of this paper to discuss the modeling of particular …

---