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Computerized Manufacturing

Jennifer Pickle

Computerized Manufacturing Systems

Professor: Packey Laverty

October 8, 1999

CI/366-Pittsburgh

Historical manufacturing and accounting management systems did not provide data for effective development of a production schedule or supply chain management. (6) Companies did not have the ability to measure inventory, workflow process, labor and production efficiently or accurately. With the progression of automation and the revolution of the desktop computer accompanied by developing software companies are now able to use computerized manufacturing systems to record and maintain accurate data and management all aspects of the accounting and manufacturing process. (2) This paper will discuss the development of automation and computerized manufacturing systems and specifically the ERP solution.

Manufacturing systems were initially managed by abstract calculations or simulators designed to produce theoretical results and measure manufacturing schedules. These methods were very time consuming and cost effective. The job of a manufacturing organization was broken down into various development phases. (1) These phases include the following:

Table (1):
Operation: The task to be performed in the manufacturing job shop
Processing Time: The amount of time required to process the operation (in most cases sets up times are independent of operation relations and are included in processing time)
Job: The set of operations that are interrelated by procedure constraints derived from technological restrictions.
Machine: The piece of equipment (a device or a facility) capable of performing an operation.
Release Time: The time in which the job is released to the shop floor, it is the earliest time at which the first operation of the job can begin processing.
Due Date: The time by which the last operation of the job should be completed.
Completion Time: The time at which processing of the last operation of the job is...