Scheduling and staffing multiple projects with a multi-skilled workforce |
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Authors: | Christian Heimerl Rainer Kolisch |
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Affiliation: | 1. TUM Business School, Technische Universit?t München, Munich, Germany
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Abstract: | We consider the problem of simultaneously scheduling IT-projects and assigning multi-skilled internal and external human resources
with resource-specific efficiencies to the project work. The objective is to minimize labor costs. The problem is modeled
as a mixed-integer linear program (MIP) with a tight LP-bound. The performance of the model w.r.t. solution gap and computation
time is assessed and managerial insight is given concerning different problem parameters such as the time window size of projects,
the number of skills of human resources, and the workload. Furthermore, we show the benefit of applying the MIP compared to
simple heuristics used in practice in terms of obtaining feasible and low-cost solutions. Finally, we provide insight into
the benefit of applying the MIP in case of central compared to decentral planning. |
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Keywords: | |
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