In accordance with the purpose of the study, the stages of the formation of network planning methods taking into account risk factors up to modern technologies, powerfully supported by computer tools for calculations and visualization, are considered in the work. The main approaches to the classification of network models according to various criteria are analyzed and comparative results are obtained. It has been established that even at the present stage, the use of probabilistic and even more so alternative network models is associated with time-consuming routine operations. Microsoft Project and other similar systems support setting time estimates, but their capabilities are severely limited in the case of multicriteria tasks. As for the software for alternative models, we can state its deficiency. The stages of analysis for each task are given in detail and conclusions are drawn. Despite the shortcomings of each type of model, the following statement can be made. When performing the practical part, an estimate was made of the number of steps, calculations, and elementary operations. It has been established that manual optimization by the GERT method is characterized by high time costs. Therefore, the question of software tools for GERT analysis is acute.