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Quadratic Loss Function
parabolic relationship between the dollars lost by a customer because of an off-target product performance and the measured deviation of the product from its intended performance.

ISO 8042 defines quality as the totality of features and characteristics of a product or service that bear on its ability to satisfy stated or implied needs. Definitions:
 Transcendent: excellence
 Product: quality of product attributes
 User-based: fitness for intended use
 Value-based: quality vs. price
 Manufacturing: conformance to specs

Quality Assurance
ISO 9000:2000 defines Quality Assurance as 'providing confidence that requirements will be met'. - update provided by J Broomfield; it can also be defined as 'the planned and systematic activities put in place to ensure quality requirements for a product or service will be fulfilled'.

Quality Assurance Plan
A detailed plan setting forth the process that will be used to measure supplier performance; defines what the organization must do to ensure that the supplier has performed in accordance with the performance standards.

Quality Circles
teams that follow a standard process of problem identification, root cause analysis, problem solving and implementation. In Japanese firms there is a greater focus on statistical quality control, employees meet on own time and all employees receive a bonus for the performance of the entire organization. Guide to Quality Control, Dr. Kaoru Ishikawa, English version 1986. Also recommend 'Managing; A Revival of the Quality Circle' in NY Times. Also read - Landel, Robert,Quality Circles. Darden Case No. UVA-OM-0636 . Available at SSRN: http://ssrn.com/abstract=1421686. This note presents the basic elements and implementation issues within a quality-circle program. Top-management and middle-management support roles are discussed, and implementation obstacles are presented.

Quality Control
the observation techniques and activities used to fulfill requirements for quality.

Quality Engineering
Set of operational, managerial and engineering activities that a company uses to ensure that the quality characteristics of a product are at the nominal or required levels.

Quality Function Deployment
Click here to read more about QFD

Quality Improvement
Quality is inversely proportional to variability. Quality Improvement is the reduction of variability in products and processes.

Quality Lever
this concept demonstrates that the earlier in the manufacturing process a quality correction or improvement is made, the greater the payoff - both in fixing the process and in reducing the costs. Theoretically, an investment in product engineering quality will give you a payback of 100:1 by the time your product is shipped. At the manufacturing engineering stage investment will have a payback of 10:1 greater than those made at final inspection.

Quality Management Plan
a document describing an organization’s quality system. This document identifies the organizational structure, policy and procedures, functional responsibilities of management and staff, lines of authority, and its processes for planning, implementing, documenting, and assessing all activities conducted under the organization’s quality system.

Quality Management Principle
is defined by ISO/TC 176 as a comprehensive and fundamental rule or belief, for leading and operating an organization, aimed at continually improving performance over the long term by focusing on customers while addressing the needs of all other interested parties. 8 principles have emerged as fundamental to the management of quality - customer focus, continual improvement, mutually beneficial supplier relationships, involvement of people, factual approach, system approach, process approach, leadership

Quality Manual
A Quality Manual is the supplier's document that describes the elements of the quality system used to assure customer requirements, needs, and expectations are met. Quality manuals shall include responsibilities and authorities for each element of the quality system.

Quality Month
Quality month is celebrated annually in October in North America. This was started by the American Society for Quality in the early 1980s. Individuals and organizations hold special events to strengthen their commitment to quality and celebrate performance excellence.

Quality Planning
Quality Planning is a structured process for defining the methods that will be used in the production of a specific product or family of products. Quality planning embodies the concepts of defect prevention and continuous improvement as contrasted with defect detection.

Quality Planning Sign-Off
A review and commitment by the Product Quality Planning Team that all planned controls and processes are being followed.

Quality Records
Quality Records are the documented evidence that the supplier's processes were executed according to the quality system documentation and records results.

Quality System Requirements.

Click here for read more about QS9000

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