eXtensible Markup Language
|eXtensible Markup Language||
Extensible Markup Language is designed to improve the functionality of the Web by providing more flexible and adaptable information identification. It is called extensible because it is not a fixed format like Hypertext Markup Language (a single, predefined markup language). Instead, Extensible Markup Language is actually a metalanguage (a language for describing other languages) that allows individuals to customize markup languages for limitless different types of documents. Extensible Markup Language can do this because it is written in Standard Generalized Markup Language, the international standard metalanguage for text markup systems.