Constraints based scheduling in the multi-project environment

  • Bożena Skołud Silesian University of Technology
  • Aleksandra Zientek Silesian University of Technology


The paper deals with the problem of new projects acceptance into the multi project environment, where constraints are limiting the number of projects that a company is able to carry out concurrently. The objective of this paper is to answer the question: Is it possible to execute new project on time in the multiproject environment? For answering the question combination of Theory of Constraints and conditions guaranteeing project due dates with constraint-based scheduling are proposed. As a result the decision of the project implementation and the schedule of project activities, which the company is able to implement concurrently are obtained.


Theory of Constraints, multi-project scheduling, constraint programming,


[1] Z. Banaszak, I. Pisz. Project-driven production flow management, Project Driven Manufacturing, WNT, 53-71 Warszawa, 2003.
[2] R. Barták. Constraint-Based Scheduling: An introduction for newcomers. Intelligent Manufacturing Systems 2003. IFAC Publications, Elsevier Science, 69-74, 2003.
[3] K. Bzdyra, P. Sitek, Z. Banaszak. CLP-based approach to integrated planning of production flow, Automation, 344-352, Warszawa, 2004.
[4] E.L. Demeuleemester, W.S. Horroelen. An effective optimal solution procedure for the pre-emptive resource-constrained project scheduling problem. European Journal of Operational Research. 90: 334-348, 1996.
[5] E.M. Goldratt, J. Cox. Critical chain (in Polish), Werbel, Warszawa, 2000.
Nov 30, 2022
How to Cite
SKOŁUD, Bożena; ZIENTEK, Aleksandra. Constraints based scheduling in the multi-project environment. Computer Assisted Methods in Engineering and Science, [S.l.], v. 12, n. 2-3, p. 247-257, nov. 2022. ISSN 2956-5839. Available at: <>. Date accessed: 23 june 2024.