Constraint

Constraint : A business rule that places a restriction on business actions and therefore restrictions the resulting data. For example, "only wholesale customers may place wholesale orders." 

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml , 17-Jan-2009 13:02

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Constraint - A limitation imposed on a project or effort.

[Category=Data Governance ]

Source: The Data Governance Institute, 22 November 2009 11:04:25, http://www.datagovernance.com/glossary-governance/

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Constraints - Data restrictions specified in a database; rules that determine what values the field to the table can assume.

[Category=Database Management ]

Source: Northwest Database Services, 07 November 2009 11:12:49, http://www.nwdatabase.com/database-glossary-c.htm

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Constraint - Anything that limits a system from achieving higher performance or throughput; also, the bottleneck that most severely limits the organization's ability to achieve higher performance relative to its purpose or goal.

[Category=Quality ]

Source: American Society for Quality, 13 September 2010 08:52:07, http://www.asq.org/glossary/

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constraints - [data models] Limits imposed on a model to maintain data integrity. For example, in a water network model, an 8-inch pipe cannot connect to a 4-inch pipe.

[Category=Geospatial ]

Source: esri, 03 March 2012 09:47:16, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation