SAPEVO-M-NC: desenvolvimento do modelo axiomático e implementação computacional de uma ferramenta para o apoio à tomada de decisão - uma aplicação na seleção de veículos autônomos submarinos para a Marinha do Brasil

Abstract

The present study proposes a new model of Multicriteria Decision Support, called SAPEVO-M-NC, being of an ordinal nature, non-compensatory and with the possibility of evaluation by multiple decision-makers. For the weighting of the criteria, it uses the axiomatics of the SAPEVO-M method, while, for the evaluation of the performance of the alternatives, it proposes a totally innovative approach. This is carried out directly, without the need to perform parity comparisons between the alternatives, to obtain the modelling of preferences, which results in a reduction of the cognitive effort on the part of the evaluators. As a result, it provides information on the relative importance of the criteria and leads to two distinct evaluations: one Partial, which considers the absolute dominance indices and the rates of overclassification among the alternatives, making it possible to identify the existing overcoming relationships, as well as order them; and a Global one, which considers the general performance of the alternatives, providing additional information on the system in question, is used to enable a total ranking, in case there are ties in the partial evaluation, thus providing greater clarity and understanding of the problem to the decision-makers involved. Aiming to make the application of the method more versatile and accessible, a web computational platform of the proposed model was developed, which provides the output of the results in numerical and graphical form, facilitating the understanding of the analysis. To demonstrate a practical application of the method, a case study was carried out based on the strategic assessment of the Brazilian Navy, for the acquisition of Autonomous Submarine Vehicles (AUV), aiming at its implementation in the theatre of naval operations, focusing on operations of Countermeasures of Mining (CMM). The SAPEVO-M-NC method made it possible to carry out a simplified assessment of the proposed problem, making it possible to clearly order the considered alternatives. To appreciate the stability and positivity of the results achieved, an evaluation by reverse rank was carried out, making it possible to perceive the robustness of the method, which maintained the initial order presented. It should be noted that the results were in line with the current defence situation, where the alternatives that presented the best performance in ordination are being expressively explored by the most developed navies in the world.