Attribute–value pair

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

Tuples

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, like this:

<attribute name, value>

Each element is an attribute–value pair.

Uniqueness of attribute names

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

See also

• Data
• Data (computing)
• Data model
• Data structure
• Tuple

Exterior Links

• Attribute-value pair @ Wikipedia