Extensible HTML is a cleaner and stricter version of HTML
XML Document Object Model defines a standard way for manipulating and accessing XML documents.
A D V E R T I S E M E N T
Extensible Style Sheet Language consists of three parts: XSLT - a language for transforming XML documents, XPath - a language for navigating in XML documents, and XSL-FO - a language for formatting XML documents.
XSL Transformations(XSLT ) is used to convert XML documents into other XML formats, like XHTML.
To navigating in XML documents XPATH language used.
Extensible Style Sheet Language Formatting Objects(XSL-FO) is an XML based markup language describing the formatting of XML data.
XML Linking Language(XLink) is a language for creating hyperlinks in XML documents.
XML Pointer Language (Xpointer) allows the XLink hyperlinks to point to more specific parts in the XML document.
Document Type Definition(DTD) is used to define the legal elements in an XML document.
XML Schema(XSD) is an XML-based alternative to DTDs.
XML Forms(XForms) uses XML to define form data.
XML Query Language(XQuery) is designed to query XML data.
Simple Object Access Protocol(SOAP) is an XML-based protocol to let applications exchange information over HTTP.
Web Services Description Language(WSDL) is an XML-based language for describing web services.
Resource Description Framework(RDF) is an XML-based language for describing web resources.
Really Simple Syndication(RSS) is a format for syndicating news and the content of news-like sites.
Wireless Application Protocol(WAP) was designed to show internet contents on wireless clients, like mobile phones.
Synchronized Multimedia Integration Language(SMIL) is a language for describing audiovisual presentations.
Scalable Vector Graphics(SVG) defines graphics in XML format.