Stochastic and Fuzzy Pert

  • Freerk A. Lootsma
Part of the Applied Optimization book series (APOP, volume 8)


The key issue in project planning under uncertainty is the choice of a time schedule for further action. Such a time schedule, which is necessary for the subcontractors because they often have to order materials and labour in advance, will not automatically be generated by the analysis of the randomness and the imprecision in the project. It is the result of a decision. The obvious importance of the time schedule will extensively be dicussed in the sections to follow. We present a fuzzy version of the Project Evaluation and Review Technique PERT which is computationally easier to use than the original, probabilistic version. The fuzzy version also avoids several shortcomings of the probabilistic version.


Fuzzy Logic Fuzzy Number Critical Path Terminal Node Longe Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • Freerk A. Lootsma
    • 1
  1. 1.Delft University of TechnologyThe Netherlands

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