CMA Intermediate · Operations Management and Strategic Management · Scheduling and Queuing Models
In a queuing system at a bank branch, customers arrive randomly and are served by a single teller in the order of arrival. Which queue discipline is being followed?
The discipline is FIFO, also called first come first served. Customers are served strictly in order of arrival at the single teller, so the earliest arrival leaves the queue first. LIFO would serve the most recent arrival first, and priority rules rank customers by some attribute.
- AFIFO (first in, first out)Correct
- BLIFO (last in, first out)
- CService in random order
- DPriority based on service time
Explanation
Serving customers strictly in the order they arrive is the first-come-first-served rule, also called FIFO. LIFO would serve the latest arrival first, which does not match the description.
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