MEASURING SENSITIVITY OF PROCUREMENT DECISIONS USING SUPERIORITY AND INFERIORITY RANKING

Mohamed Marzouk (), Noha El Shinnawy (), Osama Moselhi () and Moheeb El-Said ()
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Mohamed Marzouk: Structural Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt
Noha El Shinnawy: Structural Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt
Osama Moselhi: Building, Civil and Environmental Engineering Department, Concordia University, Canada
Moheeb El-Said: Structural Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt

International Journal of Information Technology & Decision Making (IJITDM), 2013, vol. 12, issue 03, 395-423

Abstract: Wrong decisions or inappropriate selection of equipment may lead to increase in cost and reduction in efficiency and effectiveness. Selecting right equipment has always been a key factor in the success of the process it is used for. In this study, superiority and inferiority ranking (SIR) methodis utilized for evaluation of most suitable offer for procurement of equipment installed inside a facility, whereas, analytical hierarchy process (AHP) is used to calculate the weights of factors that influence procurement decision. To achieve this target, a methodological framework of a series of interviews are conducted, then two questionnaire surveys are developed for identifying the important factors affecting the selection process of equipment and determining their relative importance. A solution of the problem is then designed in a model using AHP and SIR methods in addition to using the simple additive weighting (SAW) and technique for order preference by similarity to the ideal solution (TOPSIS) procedures to generate the superiority and inferiority flows. The model is generic and flexible and is used for the application of the multiple criteria decision making (MCDM) methods in the procurement process. The model also offers an efficient and convenient tool that aids its users to act in an orderly and methodical thinking, and guides them in making logical and robust decisions. A case study is presented to demonstrate the use of the developed model and sensitivity analysis is carried out to measure the robustness of the model in different scenarios.

Keywords: Multiple criteria decision making; procurement; facility-fitted equipment; analytical hierarchy process; superiority and inferiority ranking method; sensitivity analysis (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S0219622013500168

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