¶ … mission/vision/goal -- aim for constant improvement in the product or service you offer your clients. You cannot do this without maintaining a high level of motivation and satisfaction in the people that comprise your organization -- consider that an aspect of your goal.
Dr. W. Edward Deming -- (1900-1993)
According to the American Society of Quality, quality control is the constant or periodic inspection at every stage in the manufacturer of a product from raw materials to finished product, in order to ensure that the standards of quality set by the manufacturer, by law, or by customer demand, are being met.
In a manufacturing setting, quality has to aspects: 1) product features, or the characteristics of the product that result from design. They are the functional and esthetic features of the item intended to appeal to and provide satisfaction to the customer. 2) freedom from deficiencies means that the product does what it is supposed to do, within design limitations and that it is absent of defects and out-of-tolerance conditions.
In the past, quality control pertained to the inspection of goods at the end of the assembly line. However, in today's engineering organizations, is has a much wider application.
Variability exists in any process. Two machined parts, for example, may appear identical but be different due to variations in the way the parts were made or the materials from which they are produced. There...
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