Indian Journal of Science and Technology
DOI: 10.17485/ijst/2012/v5i9.20
Year: 2012, Volume: 5, Issue: 9, Pages: 1-7
Original Article
Alireza Alagheband1,* and Mohammad Ali Soukhakian2
1 Department of Industrial Engineering, Science and Research Branch,
2 Department of Management, Shiraz University, Shiraz, Iran [email protected]*, [email protected]
*Author For Correspondence
Alireza Alagheband
Department of Management
Email: [email protected]*
For stochastic PERT networks the main difficulty in calculating the probability distribution function (pdf) for project completion time is caused by structural and statistical dependence between activities. This paper presents a method for taking into account the structural dependence between activities and provides a generalized algorithm to evaluate the exact PDF for project completion time. The proposed procedure provides an exact pdf for project completion time when the duration times of activities are discrete. It can be applied for PERT networks with statistical dependence as well as structural dependent relationship between activities and can be applied for PERT networks with discrete or continues distribution. It has been tested using simple activity network models with different structural dependence between activities
Keywords: PERT, pdf, Project completion time.
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