PMID- 33562250 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240331 IS - 1099-4300 (Electronic) IS - 1099-4300 (Linking) VI - 23 IP - 2 DP - 2021 Feb 7 TI - A Fuzzy Multiple Criteria Decision Making Approach with a Complete User Friendly Computer Implementation. LID - 10.3390/e23020203 [doi] LID - 203 AB - The paper presents the generalization of the almost forty years of experience in the field of setting and solving the multiple criteria decision-making (MCDM) problems in various branches of a human activity under different types of uncertainties that inevitably accompany such problems. Based only on the pragmatic intentions, the authors avoid the detailed descriptions of the known methods for the decision-making, while instead focusing on the most frequently used mathematical tools and methodologies in the decision-making practice. Therefore, the paper may be classified as a special kind of illustrative review of the mathematical tools that are focused on applications and are the most used in the solutions of MCDM problems. As an illustrative example, a complete user-friendly computer implementation of such tools and methodology is presented with application to the simple "buying a cat" problem, which, however, possesses all the attributes of the hierarchical fuzzy MCDM task. FAU - Dymova, Ludmila AU - Dymova L AUID- ORCID: 0000-0002-5387-9990 AD - Department of Computer Science, Czestochowa University of Technology, Dabrowskiego 73, 42-201 Czestochowa, Poland. FAU - Kaczmarek, Krzysztof AU - Kaczmarek K AUID- ORCID: 0000-0002-6648-7267 AD - Department of Computer Science, Czestochowa University of Technology, Dabrowskiego 73, 42-201 Czestochowa, Poland. FAU - Sevastjanov, Pavel AU - Sevastjanov P AUID- ORCID: 0000-0003-0401-4525 AD - Department of Computer Science, Czestochowa University of Technology, Dabrowskiego 73, 42-201 Czestochowa, Poland. FAU - Kulawik, Joanna AU - Kulawik J AUID- ORCID: 0000-0002-5012-6563 AD - Department of Computer Science, Czestochowa University of Technology, Dabrowskiego 73, 42-201 Czestochowa, Poland. LA - eng PT - Journal Article DEP - 20210207 PL - Switzerland TA - Entropy (Basel) JT - Entropy (Basel, Switzerland) JID - 101243874 PMC - PMC7915879 OTO - NOTNLM OT - MCDM OT - fuzzy OT - hierarchical OT - implementation COIS- The authors declare no conflict of interest. EDAT- 2021/02/11 06:00 MHDA- 2021/02/11 06:01 PMCR- 2021/02/07 CRDT- 2021/02/10 01:01 PHST- 2021/01/13 00:00 [received] PHST- 2021/01/30 00:00 [revised] PHST- 2021/02/03 00:00 [accepted] PHST- 2021/02/10 01:01 [entrez] PHST- 2021/02/11 06:00 [pubmed] PHST- 2021/02/11 06:01 [medline] PHST- 2021/02/07 00:00 [pmc-release] AID - e23020203 [pii] AID - entropy-23-00203 [pii] AID - 10.3390/e23020203 [doi] PST - epublish SO - Entropy (Basel). 2021 Feb 7;23(2):203. doi: 10.3390/e23020203.