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Development of new evaluation methods for qualitative alternatives, using fuzzy calculations

Athari N., Hamidreza, Golabchi, Mahmood, & Saghatforoush, Ehsan (2011) Development of new evaluation methods for qualitative alternatives, using fuzzy calculations. European Journal of Scientific Research, 51(3), pp. 305-314.

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Abstract

Evaluation, selection and finally decision making are all among important issues, which engineers face in long run of projects. Engineers implement mathematical and nonmathematical methods to make accurate and correct decisions, whenever needed. As extensive as these methods are, effects of any selected method on outputs achieved and decisions made are still suspicious. This is more controversial and challengeable, where evaluation is made among non-quantitative alternatives. In civil engineering and construction management problems, criteria include both quantitative and qualitative ones, such as aesthetic, construction duration, building and operation costs, and environmental considerations. As the result, decision making frequently takes place among non-quantitative alternatives. It should be noted that traditional comparison methods, including clear-cut and inflexible mathematics, have always been criticized. This paper demonstrates a brief review of traditional methods of evaluating alternatives. It also offers a new decision making method using, fuzzy calculations. The main focus of this research is some engineering issues, which have flexible nature and vague borders. Suggested method provides analyzability of evaluation for decision makers. It is also capable to overcome multi criteria and multi-referees problems. In order to ease calculations, a program named DeMA is introduced.

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ID Code: 41046
Item Type: Journal Article
Additional URLs:
Keywords: Qualitative Evaluation, Fuzzy Ranking, Fuzzy Numbers, Decision Support System, Scales Models
ISSN: 1450-216X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Infrastructure Engineering and Asset Management (090505)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2011 EuroJournals Publishing, Inc
Deposited On: 30 Mar 2011 07:54
Last Modified: 11 Oct 2011 13:33

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