A Multivariate Approach to Estimating the Completion Time for PERT Networks
Kaiomars P. Anklesaria, Zvi Drezner · Journal of the Operational Research Society · 1986
Stochastic PERT is typically treated as a critical path problem, with the critical path having a univariate probability distribution. A method has been developed to treat the PERT problem as a multivariate problem taking into consideration correlation among paths, thereby providing a more accurate analysis of the network and its corresponding probabilities for completion time.