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# Cardinality

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## Cardinality - definition(s)

Cardinality : The number of occurrences that may exist between occurrences of two related entity types. The cardinalities between a pair of related entity types are : one to one, one to many, or many to many. See Relationship

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml , 14-Jan-2009 14:21

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Cardinality - In a data modeling context, cardinality refers to the number of entities in a relationship: One-to-One, One-to-Many, Many-to-Many. See Relationship.

[Category=Data Governance ]

Source: The Data Governance Institute, 20 November 2009 08:49:56, http://www.datagovernance.com/glossary-governance/

Cardinality - The number of data occurrences allowed on either side of a data relation. In the common data architecture, cardinality is documented with data integrity, not with the data structure.

[Category=Data Warehousing ]

Source: Sun.com, 18 July 2010 09:00:16, http://www.sun.com/third-party/dw/brochures/67198.Acrobat.pdf

Cardinality - The number of data occurrences allowed on either side of a data relation. In the common data architecture, cardinality is documented with data integrity, not with the data structure.

[Category=Data Warehousing ]

Source: Aexis Business Intelligence, 09 November 2010 10:26:04, http://www.aexis.eu/DataWarehouse-Glossary/

cardinality - [mathematics] The correspondence or equivalency between sets; how sets relate to each other. For example, if one row in a table is related to three rows in another table, the cardinality is one to many.

[Category=Geospatial ]

Source: esri, 09 February 2012 09:21:03, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation

Cardinaliteit - Dit is het structurele verband tussen twee entiteiten. Het wordt gebruikt in gegevensmodellen om weer te geven hoeveel voorkomens van één entiteit een relatie kunnen hebben met voorkomens van de andere entiteit.