A case study of cost-efficient staffing under annualized hours

Veen, Egbert van der; Hans, Erwin W.; Veltman, Bart; Berrevoets, Leo; Berden, H.J.J.M.

doi:10.1007/s10729-014-9292-0

Cited by 11 publications

(7 citation statements)

References 22 publications

(32 reference statements)

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“…On the other hand, heterogeneous labour considers different types of employees. In a paper by van der Veen et al (2015), employees were considered with different skill sets and different contract types, while Goodale and Thompson (2004) considered individual employees with different productivity levels. Karam et al (2017) developed a model where the skill of the workers is measured by their efficiencies and, thus, affects their execution times of the tasks.…”

Section: Lspmentioning

confidence: 99%

Multi-skilled workforce scheduling with training and welfare considerations

Peña,

Osorio,

Orejuela

et al. 2023

Engineering Management in Production and Services

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Flexibility in workforce scheduling in services is necessary to reduce the impact of demand uncertainty, absenteeism, and desertion while maintaining high service levels. This paper studies the workforce scheduling problem, including multiple skill accumulation, training, and welfare, as well as flexibility for employees and the company. All these elements are modelled and included in a mixed-integer linear programming (MILP) model that maximises their accumulated skill level. A real case study based on the scheduling of lab assistants to laboratory practices at a university in Colombia is used to generate numerical experiments. Different experiments were conducted, and the results show that the level of skill achieved is highly sensitive to the number of assistants and the number of allocations. The experiments also showed that, while keeping the same number of lab assistants, it is possible to include flexibility and welfare constraints. Finally, the proposed model can generate schedules that achieve high levels of skills and meet the different constraints of the model, including balance, accumulation, demand and welfare.

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Section: Lspmentioning

confidence: 99%

Multi-skilled workforce scheduling with training and welfare considerations

Peña,

Osorio,

Orejuela

et al. 2023

Engineering Management in Production and Services

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“…van der Veen et al. () report that under annualized hours, savings of up to 5% may be realized. Using a static horizon approach, it is impossible to obtain solutions that are balanced over multiple scheduling periods.…”

Section: Inconsistent Constraint Evaluationmentioning

confidence: 99%

Local and global constraint consistency in personnel rostering

Smet

Salassa

Berghe

2016

Int Trans Operational Res

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Personnel rostering is a challenging combinatorial optimization problem in which shifts are assigned to employees over a scheduling period while subject to organizational, legislative, and personal constraints. Academic models for personnel rostering typically abstractly conceptualize complex real-world problem characteristics. Often only one isolated scheduling period is considered, contradicting common practice where personnel rostering inherently spans multiple dependent periods. The state of the art offers no systematic approach to address this modeling challenge, and consequently, few models capture the requirements imposed by practice. The present paper introduces the concepts of local and global consistency in constraint evaluation processes and proposes a general methodology to address these challenges in integer programming approaches. The impact of inconsistent constraint evaluation is analyzed in a case study concerning rostering nurses in a hospital ward, of which the data have been made publicly available. The results demonstrate that the proposed methodology approximates the optimal solution.

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“…Some of them are , , Corominas et al (2002Corominas et al ( , 2004Corominas et al ( , 2007aCorominas et al ( , 2007bCorominas et al ( , 2012, Hertz et al (2010), Van der Veen et al (2014), and Filho and Marcola (2001).…”

Section: Literature Reviewmentioning

confidence: 99%

“…Many authors worked with deterministic demand, like , , Hung (1999a), Hung (1999b), Sureshkumar and Pillai (2012), Sureshkumar and Pillai (2013), and Van der Veen et al (2014), and stochastic demand is assumed in Lusa and Pastor (2011). In the real world, demand is uncertain and cannot be precisely known.…”

Section: Literature Reviewmentioning

confidence: 99%

Manpower Planning with Annualized Hours Flexibility: a Fuzzy Mathematical Programming Approach

Hasan

2016

dmms

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Abstract. We have considered the problem of annualized hours (AH) in workforce management. AH is a method of distributing working hours with respect to the demand over a year. In this paper, the basic Manpower planning problem with AH flexibility is formulated as a fuzzy mathematical programming problem with flexible constraints. Three models of the AH planning problem under conditions of fuzzy uncertainty are presented using different aggregation operators. These fuzzy models soften the rigidity of the deterministic model by relaxing some constraints with the use of flexible programming. Finally, an illustration is given with a computational experiment performed on a realistic-scale case problem of an automobile company to demonstrate and analyze the effectiveness of the fuzzy approach over a deterministic model.

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A case study of cost-efficient staffing under annualized hours

Cited by 11 publications

References 22 publications

Multi-skilled workforce scheduling with training and welfare considerations

Multi-skilled workforce scheduling with training and welfare considerations

Local and global constraint consistency in personnel rostering

Manpower Planning with Annualized Hours Flexibility: a Fuzzy Mathematical Programming Approach

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