Project planning with alternative technologies in uncertain environments

Stefan Creemers, Bert De Reyck and Roel Leus
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Stefan Creemers: LEM - Lille économie management - UMR 9221 - UA - Université d'Artois - UCL - Université catholique de Lille - Université de Lille - CNRS - Centre National de la Recherche Scientifique, IÉSEG School Of Management [Puteaux]
Roel Leus: KU Leuven - Catholic University of Leuven = Katholieke Universiteit Leuven

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Abstract: We investigate project scheduling with stochastic activity durations to maximize the expected net present value. Individual activities also carry a risk of failure, which can cause the overall project to fail. In the project planning literature, such technological uncertainty is typically ignored and project plans are developed only for scenarios in which the project succeeds. To mitigate the risk that an activity's failure jeopardizes the entire project, more than one alternative may exist for reaching the project's objectives. We propose a model that incorporates both the risk of activity failure and the possible pursuit of alternative technologies. We find optimal solutions to the scheduling problem by means of stochastic dynamic programming. Our algorithms prescribe which alternatives need to be explored, and how they should be scheduled. We also examine the impact of the variability of the activity durations on the project's value.

Keywords: Project scheduling; Uncertainty; Net present value; Alternative technologies; Stochastic activity durations (search for similar items in EconPapers)
Date: 2015-04
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Citations: View citations in EconPapers (16)

Published in European Journal of Operational Research, 2015, 242 (2), pp.465--476. ⟨10.1016/j.ejor.2014.11.014⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-01563008

DOI: 10.1016/j.ejor.2014.11.014

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