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In [[computing]], '''Resource Directory Description Language''' ('''RDDL''') is an extension of [[XHTML]] Basic 1.0. An RDDL document, called a Resource Directory, provides a package of information about some target. The targets which RDDL was designed to describe are [[XML]] Namespaces.
== External links ==▼
*[http://www.rddl.org/ RDDL home page]▼
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RDDL is designed to allow both human readers and software robots to find any sort of resource associated with a particular namespace. Instead of putting one thing at the end of a namespace URI, RDDL puts a document there that lists all the machine-processable documents that might be available, including, but not limited to:
* DTDs
* Schemas in a variety of languages (including RELAX, Schematron, the W3C Schema language, TREX, and others)
* CSS, XSLT, and other style sheets
* Specification documents
==rddl:resource==
An RDDL document identifies each related resource by a resource element in the http://www.rddl.org/ namespace, which is customarily mapped to the rddl prefix. This element is a simple XLink (that is, it has an xlink:type attribute with the value simple) and its xlink:href attribute points to the related resource. Furthermore, the xlink:role attribute identifies the nature of the related resource and the optional xlink:arcrole attribute identifies the purpose of the related resource. An optional xlink:title attribute can provide a brief description of the purpose of the link.
▲== External links ==
▲*[http://www.rddl.org/ RDDL home page]
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