Simulation – A Microcomputer Based Simulation Model for a Military Scheduling Application
•Study tries to determine the manpower requirements for an army orders processing operation
•Model development
•Arrivals
•Service
•Queue
•Results of the simulation model showed that overall processing time can effectively be reduced by designing the processing system on the basis of the queue size of the orders and the number of clerks
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Service processing requirements has always been a difficult problem to solve and it is of overwhelming importance in certain service sectors such as hospitals or the military. Queuing theory has emerged as a useful decision making technique. Often times, the use of simulation modeling has been required in problem analysis.

Order requests arrive in batches in a random fashion with an average of 1.4584 per day.
The total service process is comprised of several service activities that must be performed in sequence. Average processing time for pre-USPGO orders is 45.4 minutes and for post-USPFO orders is 80 minutes.
A single line forms for all orders waiting for processing. The sequence in which orders are served is first-come, first-served.

Five models were developed. The most successful was model 5, which had introduced additional clerks when the number of orders in the queue reached a particular level. Manipulation of the queue size and clerk number was effective in reducing overall processing time of the orders

(Shimshak et. al., 1983)