MGCR 472 Chapter Notes - Chapter 18: Exponential Distribution, Poisson Distribution, Operations Management
6 Aug 2017
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Document Summary
Analysis of waiting lines can be an important aspect of the design of service systems. Waiting lines tend to form in such systems even though the system is underloaded due to: arrival of customers at random times, variability of service times. By the same token, at other times the servers are idle. A major consideration in the analysis of queuing systems is the state of the system. They can be either: limited (finite source), unrestricted (infinite source). Five basic queuing models are described, four dealing with infinite-source populations and one dealing with finitesource populations. In general, the models assume that customer arrival rates can be described by a poisson distribution and that service time can be described by a negative exponential distribution. An infinite source system is when entry to the system is unrestricted. The basic relationship formulas can be used with an infinite source model.
