Project Scheduling with Fuzzy Cost and Schedule Buffers

  • Pawel Blaszczyk
  • Tomasz Blaszczyk
  • Maria B. Kania
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 170)


The aim of this research was the trial of modelling and optimizing the time-cost trade-offs in project planning problem with taking into account the behavioral impact of performers’ (or subcontractors’) estimations of basic activity parameters. However, such a model must include quantitative measurements of budget and duration, so we proposed to quantify and minimize the apprehension of their underestimations. The base of the problem description contains both safe and reasonable amounts of work estimations and the influence factors matrix. We assumed also the pricing opportunity of performance improving. Finally we introduce fuzzy measurements for work amount. This paper is a revised, extended version of Blaszczyk et al. 2011, presented on the World Congress on Engineering and Computer Science 2011.


Buffer management Project planning Time-cost trade-off Fuzzy numbers Scheduling Fuzzy linear programming 


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Pawel Blaszczyk
    • 1
  • Tomasz Blaszczyk
    • 2
  • Maria B. Kania
    • 1
  1. 1.Institute of MathematicsUniversity of SilesiaKatowicePoland
  2. 2.Department of Operations ResearchUniversity of Economics in KatowiceKatowicePoland

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