Abstract
In every project, there are inevitable uncertainties related to planning itself. In the project scheduling, it is especially important to handle the said uncertainties which lead to the gaps between the planed and the actual schedule. In this paper, the authors presentedthe uncertainties related to the duration and the precedence of activities inside the schedule and proposed a rationalscheduling method that combines widely used PERT and the Bayesian Network which deals with the probability distribution and selection problems.
