McDonald, Michael H. (1986, ASQC) Corning Glass Works, Corning, NY
All work is a Process which results in a product or service.The activity or flow of this process is the subject to be covered. One of the key criteria with total quality is, "Doing it right the first time." In order to do that you must know how and what you are doing.The concept of flow networks can deal with material, people, money, time, equipment, etc. It states that the total of anything entering a fixed system in a given time must equal the total of anything that leaves the system, plus anything that accumulates in the system. The concept puts quality into the process evaluation and control function.The key strength of this concept is that it treats any process as a "Flow Network" accounting for input and output at every step. This puts the entire process into focus and results in putting quality in the process and the way it is being monitored, from purchased material through the effort of the people, to the finished product or service.Corrective action is then just a matter of identifying the problem areas and developing the strategies to deal with them.The fall-out of this concept provides a basis for determining quality improvement and cost reduction progress, and is a key input to the cost of quality, i.e., defining recycle, scrap, rework, and the time involved in doing things over.This concept is just simply straight forward quality engineering practice. Example of a glass manufacturing material Flor Network is given.
Chemical and process industries