In computing, Resource Directory Description Language (RDDL) is an extension of XHTML Basic 1. Computing is usually defined like the activity of using and developing Computer technology Computer hardware and software. The Extensible Hypertext Markup Language, or XHTML, is a 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. XML namespaces are used for providing uniquely named elements and attributes in an XML instance The specification for RDDL (http://www.rddl.org/) has no official standing and has not been considered nor approved by any organization (e. g. , W3C).
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:
- 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
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. Document Type Definition ( DTD) is one of several SGML and XML schema languages and is also the term used to describe a document or portion thereof that An XML schema is a description of a type of XML document typically expressed in terms of constraints on the structure and content of documents of that type above and beyond REgular LAnguage description for XML ( RELAX) is a specification for describing XML -based languages In Markup Languages, Schematron is a rule-based validation language for making assertions about the presence or absence of patterns in XML trees An XML schema is a description of a type of XML document typically expressed in terms of constraints on the structure and content of documents of that type above and beyond Tree Regular Expressions for XML ( TREX) is a simple schema language for XML. Extensible Stylesheet Language Transformations ( XSLT) is an XML -based language used for the transformation of XML documents into other XML or "human-readable" 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. The XML Linking Language, or XLink, is an XML Markup language used for creating Hyperlinks in XML documents 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
- RDDL home page
- Cover Pages: Resource Directory Description Language (RDDL)
- What does a namespace URI locate?
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