In case of using methodology of project planning, in the first step we had to create a “good” logic network. We had to determine the successors and predecessors of the tasks. However, usually successors and predecessors proceed from the technology, sometimes (especially in case of IT and innovation projects) these relations between tasks are not explicit. In case of projects, especially IT and innovation projects, one of the most critical points of view is the phase of logic planning. However, it is a very important phase, only slightly supported by any kind of Project Management tools. Our goal was to support the logic planning phase. In our paper a new planning method, namely SNPM (Stochastic Network Planning Method) is introduced through some practical applications. SNPM can determine all feasible solutions with the help of stochastic variables and can also take into consideration all possible precedents. The parameters of logic relations can be changed if the impacts on the project change. With this method the most probable project scenario can be determined taking into account costs and resource demands.


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