Decision-making on real-world problems, including individual process decisions, requires an appropriate and reliable … decision support system. Fuzzy set theory, rough set theory, and neutrosophic set theory, which are MCDM techniques, are useful … for modeling complex decision-making problems with imprecise, ambiguous, or vague data.This Special Issue, "Multiple …

not leave a consistent traceable record that can be referred to during the decision-making process. The involvement of … tangible and intangible factors in the assessment process further increases the complexity of the decision-making process. The … decision making have been published, the effectiveness of crisp TOPSIS and fuzzy TOPSIS needs to be investigated further. This …