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Multicriteria decision-making usually requires a set of experts to evaluate the importance of some criteria and the adequacy of the feasible alternative according to the criteria. Uncertainty can arise in these evaluations, since experts can be hesitant about the responses and due to the difficulty of quantifying human language. The Methodology for Integrated Multicriteria Decision-making with Uncertainty (MIMDU) tackles both factors of uncertainty by using non-predefined fuzzy numbers that are continuously adapted taking into account the level of confidence of the experts’ opinions. The methodology also offers useful and complementary information to lead to a robust decision-making. In this study, a novel methodology developed is presented together with an example case to show its full potential to model uncertainty and assist decision-making. In particular, a sensitivity analysis is included, which shows how more confidently evaluated alternatives are finally better ranked, since they can be more reliable for decision-makers. The methodology is applied to the robust selection of the most sustainable technology to improve agriculture efficiency in rural areas by means of a case study of a low-cost biogas digester in a small-scale farm in Colombia.

intechopen ebooks

Perspective Chapter: A Novel Method for Integrated Multicriteria Decision-Making with Uncertainty – A Case Study on Sustainable Agriculture in Colombia