Similar to RDFクエリ言語
XForms
XFormsXFrames
XFramesXHTML
XLIFF
XLIFFXML Inclusions
XIncludeXML Metadata Interchange
XML Metadata InterchangeXML Paper Specification
Open XML Paper SpecificationXML Process Definition Language
XPDLXML-RPC
XML-RPCXML暗号化
XML EncryptionXML署名
XML SignatureXML変換言語
XML transformation languageXSL Formatting Objects
XSL Formatting ObjectsXSL Transformations
XSLTXUL
XULアクセシブルな情報システム
Digital Accessible Information SystemWiX
WiXText Encoding Initiative
Text Encoding InitiativeNewsML
NewsMLFictionBook
FictionBookプロパティリスト
Property list