XML Related Technologies

XQuery (XML Query Language)
An XML based language for querying XML data.

DTD (Document Type Definition)
A standard for defining the legal elements in an XML document.

XSD (XML Schema)
An XML-based alternative to DTD.

XLink (XML Linking Language)
A language for creating hyperlinks in XML documents.

XPointer (XML Pointer Language)
Allows the XLink hyperlinks to point to more specific parts in the XML document.

SOAP (Simple Object Access Protocol)
An XML-based protocol to let applications exchange information over HTTP.

WSDL (Web Services Description Language)
An XML-based language for describing web services.

RDF (Resource Description Framework)
An XML-based language for describing web resources.

RSS (Really Simple Syndication)
A format for syndicating news and the content of news-like sites.

SVG (Scalable Vector Graphics)
Defines graphics in XML format.