Quality Techniques Essay

2500 words - 10 pages

Quality management techniques
Assignment II |

Deepali Jain Roll No. 303 MBA Tech Manufacturing

Quality Management Techniques
Quality management can be considered to have four main components: quality planning, quality control, quality assurance and quality improvement. Quality management is focused ...view middle of the document...

Determine where to apply changes that will include improvement. When a pass through these four steps does not result in the need to improve, refine the scope to which PDCA is applied until there is a plan that involves improvement
PDCA was made popular by Dr. W. Edwards Deming, who is considered by many to be the father of modern quality control; however he always referred to it as the "Shewhart cycle". Later in Deming's career, he modified PDCA to "Plan, Do, Study, Act" (PDSA) so as to better describe his recommendations.
The concept of PDCA is based on the scientific method, as developed from the work of Francis Bacon (Novum Organum, 1620). The scientific method can be written as "hypothesis"–"experiment"–"evaluation" or plan, do and check. Shewhart described manufacture under "control"—under statistical control—as a three step process of specification, production, and inspection. He also specifically related this to the scientific method of hypothesis, experiment, and evaluation. Shewhart says that the statistician "must help to change the demand [for goods] by showing.how to close up the tolerance range and to improve the quality of goods".Clearly, Shewhart intended the analyst to take action based on the conclusions of the evaluation. According to Deming, during his lectures in Japan in the early 1950s, the Japanese participants shortened the steps to the now traditional plan, do, check, act. Deming preferred plan, do, study, act because "study" has connotations in English closer to Shewhart's intent than "check".
A fundamental principle of the scientific method and PDSA is iteration—once a hypothesis is confirmed (or negated), executing the cycle again will extend the knowledge further. Repeating the PDSA cycle can bring us closer to the goal, usually a perfect operation and output.
Zero defect
"Zero Defects" is Step 7 of "Philip Crosby's 14 Step Quality Improvement Process" . Although applicable to any type of enterprise, it has been primarily adopted within industry supply chains wherever large volumes of components are being purchased (common items such as nuts and bolts are good examples).
Zero Defects was a quality control program originated by the Denver Division of the Martin Marietta Corporation (now Lockheed Martin) on the Titan Missile program, which carried the first astronauts into space in the late 1960s. It was then incorporated into the Orlando Division, which built the mobile Pershing Missile System, deployed in Europe; the Sprint antiballistic missile, never deployed; and a number of air to ground missiles for the Vietnam War.
Principles of Zero Defects
The principles of the methodology are four-fold:
1 Quality is conformance to requirements
Every product or service has a requirement: a description of what the customer needs. When a particular product meets that requirement, it has achieved quality, provided that the requirement accurately describes what the enterprise and the customer actually need. This...

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