A flexible MILP model for multiple-shift workforce planning under annualized hours

Flexibility in workforce planning is one of the best ways to respond to fluctuations of the demand. This paper proposes a flexible mixed integer linear programming (MILP) model to solve a multiple-shift workforce planning problem under annualized working hours. The model takes into account laws and...

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Bibliographic Details
Published in:European journal of operational research 2010-02, Vol.200 (3), p.860-873
Main Authors: Hertz, Alain, Lahrichi, Nadia, Widmer, Marino
Format: Article
Language:English
Subjects:
Applied sciences
Decision support systems
Decision theory. Utility theory
Effectiveness
Exact sciences and technology
Firm modelling
Integer programming
Linear programming
Mathematical models
Mathematical programming
Mixed integer linear programming
Operational research and scientific management
Operational research. Management science
OR in manpower planning
OR in manpower planning Mixed integer linear programming Decision support systems
Studies
Workforce
Workforce planning
Working hours
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Summary:Flexibility in workforce planning is one of the best ways to respond to fluctuations of the demand. This paper proposes a flexible mixed integer linear programming (MILP) model to solve a multiple-shift workforce planning problem under annualized working hours. The model takes into account laws and collective agreements that impose constraints on overtime and holidays. We consider possible gradual hiring of full time and partial time workers. Several objectives are pursued such as balancing the workload of the employees or minimizing the workforce size. Computational experiments on a real life problem demonstrate the effectiveness of the model.
ISSN:0377-2217
1872-6860
DOI:10.1016/j.ejor.2009.01.045