Transcript Class7.ppt

Waiting Lines
What is a Waiting Line?
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Customers wait in a queue for service
Important because people don’t like
waiting in lines
To have happy customers, minimize
waiting time in queue
To have happy owners, minimize costs
of providing service
Arrival Characteristics
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Model how customers arrive at the
queue
Infinite or finite population of customers
Random arrival times
Poisson distribution
Balk
Reneg
Waiting Line Characteristics
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Queueing Discipline: FIFO
Service Characteristics
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Number of Channels