The case in which arriving customers refuse to join the waiting line.
The population of items from which arrivals at the queuing system come.
A queue discipline (meaning first-in, first-out) in which the customers are served in strict order of arrival.
A method of classifying queuing systems based on the distribution of arrivals, the distribution of service times, and the number of service channels.
A case in which the number of customers in the system is a significant proportion of the calling population.
A waiting line that cannot increase beyond a specific size.
A set of relationships that exist for any queuing system in a steady state.
A system that has more than one service facility, all fed by the same single queue.
A system in which service is received from more than one station, one after the other.
A probability distribution that is often used to describe random service times in a service system.
Descriptive characteristics of a queuing system, including the average number of customers in a line and in the system, average time spent in the system and waiting in the queue, and percent idle time.
A probability distribution that is often used to describe random arrivals in a queue.
The rule by which customers in a line receive service.
The mathematical study of waiting lines or queues.
The case in which customers enter a queue but then leave before being serviced.
The cost of providing a particular level of service.
A system with one service facility fed by one queue.
A queuing system in which service is received at only one station.
The normal, stabilized operating condition of a queuing system.
The initial condition of a queuing system before a steady state is reached.
A calling population that is very large relative to the number of customers currently in the system.
A queue that can increase to an infinite size.
The proportion of the time that service facilities are in use.
The cost to the firm of having customers or objects waiting to be serviced in the queue or in the system.
One or more customers or objects waiting to be served.