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Quality
From Wikipedia, the free encyclopedia - March 2008.
Quality in everyday life and business,
engineering and manufacturing has a pragmatic interpretation as the
non-inferiority, superiority or usefulness of something. This is the most common
interpretation of the term.
American Society for Quality Source: http://www.asq.org/glossary/q.html.
"a subjective term for which each person has his or her own definition. In
technical usage, quality can have two meanings:
1. the characteristics of a product or service that bear on its ability to
satisfy stated or implied needs.
2. a product or service free of deficiencies."
The quality of a product or service refers to the perception of the degree to
which the product or service meets the customer's expectations. Quality has no
specific meaning unless related to a specific function and/or object. Quality is
a perceptual, conditional and somewhat subjective attribute.
The dimensions of quality refer to the attributes
that quality achieves in Operations Management
Quality supports dependability
Dependability supports Speed
Speed supports Flexibility
Flexibility supports Cost.
Quality <-> Dependability <-> Speed <-> Flexibility <-> Cost
In the manufacturing industry it is commonly
stated that “Quality drives productivity.” Improved productivity is a source of
greater revenues, employment opportunities and technological advances. Most
discussions of quality refer to a finished part, wherever it is in the process.
Inspection, which is what quality insurance usually means, is historical, since
the work is done. The best way to think about quality is in process control. If
the process is under control, inspection is not necessary.
However, there is one characteristic of modern
quality that is universal. In the past, when we tried to improve quality,
typically defined as producing fewer defective parts, we did so at the expense
of increased cost, increased task time, longer cycle time, etc. We could not get
fewer defective parts and lower cost and shorter cycle times, and so on.
However, when modern quality techniques are applied correctly to business,
engineering, manufacturing or assembly processes, all aspects of quality -
customer satisfaction and fewer defects/errors and cycle time and task
time/productivity and total cost, etc.- must all improve or, if one of these
aspects does not improve, it must at least stay stable and not decline. So
modern quality has the characteristic that it creates AND-based benefits, not
OR-based benefits.
The most progressive view of quality is that it
is defined entirely by the customer or end user and is based upon that person's
evaluation of his or her entire customer experience. The customer experience is
the aggregate of all the touch points that customers have with the company's
product and services, and is by definition a combination of these. For example,
any time one buys a product one forms an impression based on how it was sold,
how it was delivered, how it performed, how well it was supported etc.
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