A college registrar's office requires you to first visit with one of three advisors and then with one of two financial professionals. This system is best described as which of the following?

A queueing model is constructed so that queue lengths and waiting time can be predicted. is generally considered a branch of operations research because the results are often used when making business decisions about the resources needed to provide a service.
A queuing system is characterised by three components: Arrival process - Service mechanism - Queue discipline.

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