A NEW METHOD TO APPROXIMATION THE MEAN AND THE VARIANCE OF ACTIVITIES IN PERT NETWORKS

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RABANI M.

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Journal: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN) Year:2003 | Volume:14 | Issue:2 Page(s): 7-7

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Title

A NEW METHOD TO APPROXIMATION THE MEAN AND THE VARIANCE OF ACTIVITIES IN PERT NETWORKS

Author(s)

RABANI M. | Issue Writer Certificate

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Abstract

The Classical PERT model uses beta distribution of activity duration and estimates the mean and the variance of activity duration Using "Pessimistic", "Optimistic", "Most likely" time estimates proposed by an expert. In the past, researchers have modified the original PERT estimators to improve the accuracy. This article proposes new approximations for the mean and the variance of activity duration. By numerical comparison, the proposal is shown as more accurate than the original PERT and its modifications. Also, proposed approximation requires no assumptions about the parameters the beta distribution as in the case of existing ones.

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APA: Copy

RABANI, M.. (2003). A NEW METHOD TO APPROXIMATION THE MEAN AND THE VARIANCE OF ACTIVITIES IN PERT NETWORKS. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), 14(2), 7-7. SID. https://sid.ir/paper/357322/en

Vancouver: Copy

RABANI M.. A NEW METHOD TO APPROXIMATION THE MEAN AND THE VARIANCE OF ACTIVITIES IN PERT NETWORKS. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)[Internet]. 2003;14(2):7-7. Available from: https://sid.ir/paper/357322/en

IEEE: Copy

M. RABANI, “A NEW METHOD TO APPROXIMATION THE MEAN AND THE VARIANCE OF ACTIVITIES IN PERT NETWORKS,” INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), vol. 14, no. 2, pp. 7–7, 2003, [Online]. Available: https://sid.ir/paper/357322/en

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