Description
The Resource Directory Description Language (RDDL) describes a Resource Directory which includes a package of information about a target. The targets which RDDL was designed to describe are XML Namespaces.
RDDL is designed to allow both humans and software to find the resources associated with a particular namespace. RDDL sits at the end of a namespace, providing a list of all the machine-processible documents that might be available, including, but not limited to:
Document Type Definitions
XML schemas in a variety of languages (including RELAX, Schematron, the W3C Schema language, TREX, and others)
Cascading Style Sheets, XSLT, and other style sheet specifications
Specification documents