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Insertion algorithms to solve the resource-constrained multi-stage project scheduling problem with discounted cash flow maximization

Klimek M.

Management and Production Engineering Review

2018

Vol. 9, No. 4

106--116

The article presents the problem of scheduling a multi-stage project with limited availability of resources with the discounted cash flow maximization criterion from the perspective of a contractor. The contractor’s cash outflows are associated with the execution of activities. The client’s payments (cash inflows for the contractor) are performed after completing the agreed project’s stages. The proposed solution for this problem is the use of insertion algorithms. Schedules are generated using forward and backward schedule generation schemes and modified justification techniques. The effectiveness of the proposed procedures is the subject of the examination with the use of standard test instances with additionally defined financial settlements of a project.

Insertion Algorithms with Justification for Solving the Resource-Constrained Project Scheduling

Klimek M., Łebkowski P.

Decision Making in Manufacturing and Services

2016

Vol. 10, no. 1-2

31--43

The paper presents the resource-constrained project scheduling problem with the makespan minimization criterion. To solve the problem, the authors propose insertion algorithms that generate schedules with the use of forward serial and parallel decoding procedures. Schedules are improved with the use of the double justification by the extremes technique (first right and then left justification). The efficiency of the procedures proposed is tested on standard test problems from the PSPLIB library.