University of Tehran Press Industrial Management Journal 3115-7386 3 1 2011 03 21 Applying Value Engineering Through Fuzzy MADM Approach to Improving Project Performance به‎کارگیری مهندسی ارزش با رویکرد MADM فازی در بهبود عملکرد پروژه 81 98 22997 EN Akbar Alem-Tabriz 0000-0002-4562-8032 Mohammad Reza Moniri Journal Article One of the most effective tools for decline cost and time, quality improvement and consequently project performance enhancement especially in construction projects, is value engineering. There are linguistic judgments in many cases of value engineering studies in construction projects such as interior design, mechanical installations design, and etc. Therefore multiple attribute decision-making techniques with fuzzy approach can be used in decision-making stages in value engineering process. In this paper, value engineering is combined with fuzzy MADM techniques. In this hybrid, fuzzy AHP technique is used in order to determine the weight of evaluation criteria recommended in creativity phase and fuzzy TOPSIS is used for ranking of alternatives. This approach was applied in design phase of mechanical installations of Mouj tower project in Sadaf town, one of the under construction projects in union sector of the state. According to the paper results, estimation of value engineering team, leads to 21.45 % of decreasing in project’s costs and 17.65% of decreasing in project’s duration. https://imj.ut.ac.ir/article_22997_ae4b60a20b0fe8582450c458ed35a28b.pdf