DocumentCode :
1728161
Title :
A grey mathematical programming model to time-cost trade-offs in project management under uncertainty
Author :
Hannan, A.M. ; Hajiagha, Seyyed Hossein Razavi ; Pourjam, Rouzbeh
Author_Institution :
Dept. of Manage., Islamic Azad Univ., Kashan, Iran
fYear :
2011
Firstpage :
698
Lastpage :
704
Abstract :
Time and cost are two salient elements indicative of success in project management. This importance obliges the project managers to seek for the best feasible amalgamation of time and cost regarding project´s activities. This condition engenders a trade-off problem in terms of creating a required balance between time and cost considerations to execute all activities in a project efficiently. Such problem relates to time and cost trade-offs issue. Time and cost trade-offs model is based on estimated values of time and cost required for a given activity to be complete in a normal or crashed form. Current models of time and cost trade-offs have made use of crisp values for these estimations. In this paper, we extend a model for time and cost trade-offs based on grey numbers to deal with the uncertain nature of time and cost estimation. The proposed method has also been applied in an example and interpretations pertaining to offered solutions have been examined.
Keywords :
estimation theory; grey systems; mathematical programming; project management; cost estimation; grey mathematical programming model; grey numbers; project management; time cost tradeoffs; time estimation; Lead; Uncertainty; grey linear programming; grey numbers; project management; time and cost tradeoffs; uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Grey Systems and Intelligent Services (GSIS), 2011 IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-61284-490-9
Type :
conf
DOI :
10.1109/GSIS.2011.6044123
Filename :
6044123
Link To Document :
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