XML Validation

• DTDs
• Historical Schema Languages
• RELAX NG
• Schematron
• XML Schema

• Computers: Data Formats: Markup Languages: XML: Applications 

• Comparative Analysis of Six XML Schema Languages  - Evaluates XML DTD, XML Schema, XDR, SOX, Schematron and DSD. Contains a summary of comparisons on its features.
• Trang Version 20030619  - Supports RELAX NG XLM and compact syntaxes, XML 1.0 DTDs and W3C XML Schema. Presents information on the tool applications, manual and links to related software.