W3C XML Schema Activities

XML Schema is an XML-based alternative to DTD.

XML Schema Tutorial

To learn more about XML Schema, read our XML Schema tutorial.

XML Schema

XML 1.0 supports DTD for defining the structure of documents.

XML Schema has better support for applications, document structure, attributes, and data-typing.

Future versions of XML will rely on XML Schema for defining XML document types.

• XML Schema Structures specifies the XML Schema definition language. 
• XML Schema Data types specifies extensible data types for XML.

W3C XML Specifications and Timeline

W3C Reference:

W3C XML Schema Home Page