Project Management

Many projects are one-of-a-kind ventures, involving tasks never before performed – such as hi-tech development. Task durations are often highly uncertain. Info-gap theory has been applied to assessing the robustness to task duration uncertainty, selecting reliable project duration, prioritizing information-gathering activity, and allocating project resources.

  • Bartosz Wachnik, Michał Kłodawski, and Ewa Kardas-Cinal, 2022, Reduction of the information gap problem in industry 4.0 projects as a way to reduce energy consumption by the industrial sector, Energies, vol. 15 Issue 3 10.3390/en15031108. Link to paper.
  • Bartosz Wachnik, Piotr Pryciński, Jakub Murawski and Mirosław Nader, 2021, An analysis of the causes and consequences of the information gap in IT projects. The client’s and the supplier’s perspective in Poland, Archives of Transport, Vol. 60, Issue 4, DOI: 10.5604/01.3001.0015.6932. Link to paper.
  • Bartosz Wachnik, 2020, Information Gap in IT projects. Problems and Solutions, (in Polish), 272 pages, ISBN: 978-83-208-2416-2. Link to book.
  • Yakov Ben-Haim, 2006, Info-gap Decision Theory: Decisions Under Severe Uncertainty, 2nd edition, Academic Press, London.
    Section 3.2.6: Project scheduling with task duration uncertainty.
    Section 5.4: Multi-tasking computer jobs.
    Section 7.5: Gathering information in project management.
    Section 7.6: Windfall cost of information.
    Chapter 12: Retrospective essay: Risk assessment in project management.
  • Zhang, J., 2011, Newsboy problem under Knightian uncertainty, 8th International Conference on Service Systems and Service Management, ICSSSM’11, Tianjin, China.


    In this paper, we consider newsboy problem under Knightian uncertainty. That is, we assume that the uncertainty of demand is Knightian uncertainty. We use info-gap uncertainty to model the uncertainty of the demand. The objective is to study the robustness of the optimal policy. We first assume that the price is exogenous and then the price is determined endogenously and is a decision variable. We study the optimal policies for the inventory control system with and without price setting under Knightian uncertainty and their robustness. We show that the relative robustness of the sole inventory system and the joint pricing and inventory control with multiplicative demand function to profit loss are the same and higher than that of the joint pricing and inventory control with additive demand function.[/su_spoiler

  • Michael Sambur, Analysis of the newsvendor problem with info-gap decision theory, M.Sc. thesis, Faculty of Industrial Engineering, Technion.
  • Sary Regev, Avraham Shtub and Yakov Ben-Haim, 2006, Managing project risks as knowledge gaps, Project Management Journal, vol. 37, issue #5, pp.17-25. Pre-print.
  • Faina Aranovich, 2002, Risk assessment in preliminary project planning under severe uncertainty. M.Sc. thesis, Faculty of Industrial Engineering.
  • Sary Regev, 2001, Applicable methodology of risk management in hi-tech engineering projects. M.Sc. thesis, Faculty of Industrial Engineering, Technion.
  • Yakov Ben-Haim and Alexander Laufer, 1998, Robust reliability of projects with activity-duration uncertainty,ASCE Journal of Construction Engineering and Management, 124: 125-132. Pre-print.
  • Avy Shtub, Sary Regev and Yakov Ben-Haim, 2000, Sikun m'hushav (Calculated Risk), Tasiah v'Nihul, issue #50, pp.32-37. In Hebrew. pdf file.

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