A queue management system is used to control queues. Queues of people form in various situations and locations in a queue area. The process of queue formation and propagation is defined as queuing theory.

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Queue management system installed at Emirates to guide customers at the counters where their ticket is called. The screen runs simultaneously with a live video feed and queue updates

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Here people form a queue in a fixed, predictable position, such as at supermarket checkouts, and other retail locations such as banks or airport security. In the field of facilities management, structured queues are commonly known with different names like "Queue Managers" or "Crowd Controllers" or "Public Guidance Systems". Very often, queue management systems are set up to manage ticket ranking for a service (with or without a numbered ticket) with identification and thus enable a serene and stress-free waiting. Extending the different possibilities, planned reception by appointment and remotely rank allocation on or through Short Message Service can also be included.