A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

XFORMS
A rich XML-based web forms standard.

XHTML
XML compliant HTML.

XML
Extended Meta Language.

XML STREAMING ENGINE
A powerful DNAOS engine providing parallel processing pipelines management services for streaming XML.

XLINK
Extended Linking Language, an XML linking extension standard.

XPATH
A standard Extended Path Language.

XQUERY
Extended Query Language, a standard XPath extension.

XSL
Extended Stylesheet Language; a large stylesheet language standard of which the XSLT. subset is currently the only fully complete standard.

XSLT
Extended Stylesheet Language for Transformation, a standard XPath extension and a subset of XSL; a powerful functional programing language, designed to process XML.