View source for Attribute–value pair

A '''name–value pair''', '''key–value pair''', '''field–value pair''', '''attribute–value pair''', etc. is a fundamental data representation in computing systems and applications. 

Designers often desire an open-ended data structure that allows for future extension without modifying existing code or data. 

In such situations, all or part of the data model may be expressed as a collection of tuples <attribute name, value>. Each element is an attribute–value pair. 

Depending on the particular application and the implementation chosen by programmers, attribute names may or may not be unique.

== Exterior Links ==

* [Attribute-value pair] @ Wikipedia