Abstract—Selecting projects are an important problem, yet often difficult task. It is complicated because there is usually more than one dimension for measuring the impact of each project and especially when there is more than one decision maker. This paper considers a real application of project selection for Telecommunication projects with using the opinion of experts by one of the group decision making model, it is called TOPSIS method. There are four kinds of criteria that they are include qualitative, quantitative, negative and positive criteria have been considered and also one of them is engineering economy techniques that are included Net Present Value, Benefit-Cost Analysis, Rate of Return and Payback Period for selecting the best one amongst five projects and ranking them. By using AHP we found the weights of each engineering economy techniques out of 0.61 that we had defined before.[1, 6] We have also used from six expert’s opinion in Cable Network in Iran. Finally the introduced method is used in a case study (Telecommunication sector of Iran) and extracted results from it are analyzed from different points of view. 
Index Terms— project selection, Decision making, MCDM (Multi Criteria Decision Making), Group TOPSIS Method, Engineering Economy techniques, NPV (Net Present Value), B/C (Benefit-Cost Analysis), ROR (Rate of Return), PP (Payback Period).
Cite: Majid Mojahed, Javad Dodangeh, "Different criteria by Using Engineering Economy techniques For Best Project Selection in one of the sector of telecommunication in Iran," International Journal of Engineering and Technology vol. 1, no. 2, pp. 121-124, 2009.