309 Cards 12-13

Question 1

The population from which arrivals at the queuing system come. Also known as the calling population.

Answer 1

Arrival Population

Question 2

The case in which arriving customer refuse to join the waiting line.

Answer 2

Balking

Question 3

A probability distribution that is often used to describe random service times in a queuing system.

Answer 3

Exponential Distribution

Question 4

A case in which the number of customers in the system is significant proportion of the calling population.

Answer 4

Finite (or Limited) Population

Question 5

A queue that cannot increase beyond a specific size.

Answer 5

Finite (or Limited) Queue Length

Question 6

A queue discipline in which the customers are served in the strict order of arrival.

Answer 6

First-In First-Out (FIFO):

Question 7

A system in which service is received from more than one station, one after the other.

Answer 7

Multiphase System

Question 8

Descriptive characteristics of a queuing system, including the average number of customers in a line and in the system, the average waiting times in a line and in the system, and the percentage of idle time.

Answer 8

Operating Characteristics

Question 9

A probability distribution that is often used to describe random arrivals in a queue.

Answer 9

Poisson distribution

Question 10

One or more customers or units waiting to be served. Also called a waiting line.

Answer 10

Queue

Question 11

The rule by which customers in a line receive services

Answer 11

Queue Discipline

Question 12

The case in which customer enter a queue but then leave before being served.

Answer 12

Reneging

Question 13

The proportion of time that the service facility is in use.

Answer 13

Utilization Ratio