Requirement

Requirements - Customer expectations of a product or service. May be formal or informal, or they may be stated, required or perceived needs.

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml

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Requirements - The ability of an item to perform a required function under stated conditions for a stated period of time.

[Category=Quality ]

Source: American Society for Quality, 18 October 2010 08:41:46, http://www.asq.org/glossary/

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Requirement - A formal statement of what is needed. This might be a condition or capability needed by a user to solve a problem or achieve an objective, or a condition or capability that must be met or possessed by a product or product component to satisfy a contract, standard or specification.

[Category=Data Governance ]

Source: The Data Governance Institute, 22 December 2009 10:19:57, http://www.datagovernance.com/glossary-governance/

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Requirement -  A requirement is a need, expectation, or obligation. It can be stated or implied by an organization, its customers, or other interested parties. A specified requirement is one that has been stated (in a document for example), whereas an implied requirement is a need, expectation, or obligation that is common practice or customary.

There are many types of requirements. Some of these include Quality_ requirements, customer requirements, management requirements, product requirements, and legal requirements.

[Category=Quality ]

Source: Praxium Research Group Ltd, 13 March 2011 10:33:00, http://www.praxiom.com/iso-definition.htm

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Requirement - A formal statement of a need and the expected manner in which it is to be met.

[Category=Quality Assurance ]

Source: Massachusetts Department of Environmental Protection, 26 March 2011 08:51:07, http://www.mass.gov/dep/cleanup/laws/glossa01.htm