Server staffing to meet time-varying demand

Server staffing to meet time-varying demand

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Article ID: iaor1998977
Country: United States
Volume: 42
Issue: 10
Start Page Number: 1383
End Page Number: 1394
Publication Date: Oct 1996
Journal: Management Science
Authors: , , ,
Keywords: scheduling, service
Abstract:

We consider a multiserver service system with general nonstationary arrivals and service-time processes in which s(t), the number of servers as a function of time, needs to be selected to meet projected loads. We try to choose s(t) so that the probability of a delay (before beginning service) hits or falls just below a target probability at all times. We develop an approximate procedure based on a time-dependent normal distribution, where the mean and variance are determined by infinite-server approximations. We demonstrate that this approximation is effective by making comparisons with the exact numerical solution of the Markovian Mt /M/st model.

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