View source for Entity–attribute–value model

'''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 ==

* [[Data model]]
* [[Sparse matrix]]

== External links == 

* [https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model Entity–attribute–value model] @ Wikipedia