Difference between revisions of "Entity–attribute–value model"

From Wiki @ Karl Jones dot com
Jump to: navigation, search
(Etc)
 
(Sparse matrix)
Line 1: Line 1:
 
'''Entity–attribute–value model''' ('''EAV''') is a [[data model]] to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest.
 
'''Entity–attribute–value model''' ('''EAV''') is a [[data model]] to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest.
  
In [[mathematics]], this model is known as a sparse matrix.
+
In [[mathematics]], this model is known as a [[sparse matrix]].
  
 
Equivalent terms include:
 
Equivalent terms include:
Line 12: Line 12:
  
 
* [[Data model]]
 
* [[Data model]]
 +
* [[Sparse matrix]]
  
 
== External links ==  
 
== External links ==  
  
 
* [https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model Entity–attribute–value model] @ Wikipedia
 
* [https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model Entity–attribute–value model] @ Wikipedia

Revision as of 16:00, 18 August 2015

Entity–attribute–value model (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest.

In mathematics, this model is known as a sparse matrix.

Equivalent terms include:

  • Object–attribute–value model
  • Vertical database model
  • Open schema

See also

External links