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Dynamically allocating expediting funds in projects with schedule uncertainty

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  • Robert L. Bregman

Abstract

When large-scale projects have tasks with uncertain durations, it is often necessary to expedite tasks in order to improve the probability of completing the project before a fixed deadline. Whereas traditional project scheduling tools focus managerial attention on tasks that comprise the longest path(s) through a project network, tasks with uncertain durations on other paths may ultimately delay the completion of the project. In addition, the status of a project schedule can vary over time as tasks are completed (early or late) and new information concerning future tasks becomes available. This research introduces and evaluates a matrix-based procedure for allocating expediting funds relative to the traditional deterministic approach and a method based on task Criticality Indices (CIs). The results from a large simulation experiment show this new matrix-based procedure to be the preferred method for allocating expediting funds in order to manage schedule risks over the life of a project. [Received 15 August 2008; Revised 15 February 2009; Accepted 18 February 2009]

Suggested Citation

  • Robert L. Bregman, 2009. "Dynamically allocating expediting funds in projects with schedule uncertainty," European Journal of Industrial Engineering, Inderscience Enterprises Ltd, vol. 3(3), pages 363-376.
    • Handle: RePEc:ids:eujine:v:3:y:2009:i:3:p:363-376
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