Analysis of Empirical Characteristics in the PERT method

Radek Doskočil, Karel Doubravský

Abstract


The paper generally deals with the effects of a change in variance activities when computing the node and activity criticality of a PERT network diagram. The main aim of the paper is to analyse the effects of a change in variance activities for two different approaches used when computing node and activity criticality. In order to achieve the aim, a hypothesis is formed that the change in variance activity should affect the computation of the criticality probability of nodes and activities. The analysis is applied to a sample PERT network diagram comprising 9 nodes and 14 activities. A time analysis is developed using the PERT method and node and activity criticality is computed using both approaches. The computed results serve as input for further statistical processing.

Keywords


network graphs; stochastic graph; PERT method; node criticality

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"Business Systems & Economics" ISSN online 2029-8234