Queuing Theory – Meaning, History, Importance and Applications

# Queuing Theory – Meaning, History, Importance and Applications

## What is Queuing Theory?

Queuing Theory – Meaning: Queueing theory is a mathematical theory that models waiting lines, or queues. In queueing theory, a queue is a line of customers, or objects, waiting for service. The theory attempts to optimize the use of resources by minimizing the average waiting time and the number of customers in the queue.

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Queueing theory is used in a variety of industries, including telecommunications, transportation, and manufacturing. However the theory can be used to model the behavior of a single customer or a group of customers. It can also be used to model the behavior of a single resource or a group of resources. ## History of Queuing Theory

Queueing theory is the mathematical study of waiting lines, or queues. In queueing theory, a model constructed that allows us to predict the behavior of a system made up of a single queue or a series of queues. The model is based on a set of assumptions about the system.

1. The first assumption is that customers arrive at the system according to a Poisson process. This assumption states that customers arrive at a random rate and that the time between arrivals is also random.
2. The second assumption that customers served in a first-in, first-out (FIFO) manner. However this assumption states that the first customer to arrive is the first customer to served, and that the next customer to arrive will served after the first customer served.
3. The third assumption is that the system is capable of serving an infinite number of customers. This assumption states that the system never overloaded and can always accommodate new customers.
4. The fourth assumption is that the service time for each customer is independent of the service time for any other customer. Therefore this assumption states that the time it takes to serve a customer not affected by how long it takes to serve any other customer.
5. The fifth assumption is that the customer’s arrival and service times Poisson distributed. This assumption states that the arrival and service times are both random and follow a specific distribution.

## Basics of Probability and Queuing theory

Probability is a branch of mathematics that deals with the likelihood of events occurring. It also used to calculate the chances of something happening, given the known information.

Queuing theory is the study of waiting lines and the analysis of the factors that affect the waiting time. It used to optimize the design of systems that involve waiting, such as telephone systems, banks, and airports.

## Importance of Queuing Theory

Queueing theory is an important tool for studying and managing systems that involve waiting lines. It can help to optimize system performance and also allocate resources efficiently.

## Applications of Queuing Theory

• Queueing theory used in a number of different fields, including computer science, civil engineering, and operations research.
• In computer science, queueing theory also used to model the behavior of computer systems and to optimize the performance of communication networks.
• Civil engineering, queueing theory used to model the behavior of traffic systems and to optimize the flow of traffic.
• However in operations research, queueing theory used to optimize the allocation of resources and to improve the efficiency of business processes.

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