What is SGML? (10)

What’s the difference between SGML and XML?

• Has related standards for linking and styles

• Has some differences in tag syntax

• Lacks some functionality that simplifies DTD writing

• XML documents must declare that they are XML

  • <?xml version="1.0" ?>

• Documents don’t have to be delivered with their DTD

  • Just "well-formed" according to the standard

• W3C comparison: http://www.w3.org/TR/NOTE-sgml-xml-971215