Journal
FUZZY SETS AND SYSTEMS
Volume 150, Issue 1, Pages 53-76Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fss.2004.08.007
Keywords
project management and scheduling; data intervals; critical path analysis
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The paper deals with the problems of computing the intervals of possible values of the latest starting times and floats of activities in networks with imprecise durations, represented by means of interval or fuzzy numbers. So far, these problems have been completely solved when the networks are series parallel. We propose new polynomial algorithms for determining the intervals of the latest starting times in general networks. We also present complexity results for floats (the computation of floats is probably intractable) and de-scribe some polynomially solvable cases. Then we extend the results to networks with fuzzy durations. (C) 2004 Elsevier B.V. All rights reserved.
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