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Term entries in the full glossary starting with the letter "R"

W3C Glossaries

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RDF (Resource description framework)

From Requirements for String Identity Matching and String Indexing (1998-07-10) | Glossary for this source

A data model and streaming format for metadata, with search engines and inference engines as potential users. Much metadata is textual, and a basic operation is to decide whether two elements of metadata are the same or not. For consistent behavior, string identity matching is necessary.
RDF (Resource description framework)

From Glossary of "Weaving the Web" (1999-07-23) | Glossary for this source

A framework for constructing logical languages that can work together in the Semantic Web. A way of using XML for data rather than just documents.
RDF resource

From Composite Capability/Preference Profiles (CC/PP): Structure and Vocabularies 1.0 (2004-01-15) | Glossary for this source

An object or element being described by RDF expressions is a resource. An RDF resource is typically identified by a URI.
reader

From Hypertext Terms (1995-04-15) | Glossary for this source

We have used this term for the person who browses, to distinguish him/her from the program ( browser ) which (s)he uses.
reading

From Ruby Annotation (2001-05-31) | Glossary for this source

For ideographs: Technical term; indication of possible pronunciation. Different from pronunciation in various respects: script used may not be fully phonetic; actual pronunciation is speaker-dependent; pronunciation may not be realized when reading a text silently. In Chinese or Korean, some ideographs have several readings. In Japanese, most ideographs have at least two readings, and some have a lot more. Readings also may depend on context.
REC

From Glossary of W3C Jargon (2003-03-11) | Glossary for this source

abbr. Recommendation. Generally pronounced like "wreck". A W3C Recommendation .
receiver

From Composite Capability/Preference Profiles (CC/PP): Structure and Vocabularies 1.0 (2004-01-15) | Glossary for this source

A system component (device or program) which receives a message.
recognize

From User Agent Accessibility Guidelines 1.0 (2002-12-17) | Glossary for this source

Authors encode information in many ways, including in markup languages, style sheet languages, scripting languages, and protocols. When the information is encoded in a manner that allows the user agent to process it with certainty, the user agent can "recognize" the information. For instance, HTML allows authors to specify a heading with the H1 element, so a user agent that implements HTML can recognize that content as a heading. If the author creates a heading using a visual effect alone (e.g., just by increasing the font size), then the author has encoded the heading in a manner that does not allow the user agent to recognize it as a heading. Some requirements of this document depend on content roles, content relationships, timing relationships, and other information supplied by the author. These requirements only apply when the author has encoded that information in a manner that the user agent can recognize. See the section on conformance for more information about applicability.In practice, user agents will rely heavily on information that the author has encoded in a markup language or style sheet language. On the other hand, behaviors, style, meaning encoded in a script, and markup in an unfamiliar XML namespace may not be recognized by the user agent as easily or at all. The Techniques document [UAAG10-TECHS] lists some markup known to affect accessibility that user agents can recognize.
recommendation

From Glossary of W3C Jargon (2003-03-11) | Glossary for this source

A technical specification which has been endorsed by the W3C. Similar to what other standards organizations would call a "Standard".
recoverable errors

From XSL Transformations (XSLT) 2.0 (2007-01-23) | Glossary for this source

Some dynamic errors are classed as recoverable errors. When a recoverable error occurs, this specification allows the processor either to signal the error (by reporting the error condition and terminating execution) or to take a defined recovery action and continue processing.
reduced image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

pass of the interlaced PNG image extracted from the PNG image by pass extraction .
reference architecture

From Web Services Glossary (2004-02-11) | Glossary for this source

A reference architecture is the generalized architecture of several end systems that share one or more common domains. The reference architecture defines the infrastructure common to the end systems and the interfaces of components that will be included in the end systems. The reference architecture is then instantiated to create a software architecture of a specific system. The definition of the reference architecture facilitates deriving and extending new software architectures for classes of systems. A reference architecture, therefore, plays a dual role with regard to specific target software architectures. First, it generalizes and extracts common functions and configurations. Second, it provides a base for instantiating target systems that use that common base more reliably and cost effectively. [Ref Arch]

reference image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

rectangular array of rectangular pixels , each having the same number of samples , either three (red, green, blue) or four (red, green, blue, alpha ). Every reference image can be represented exactly by a PNG datastream and every PNG datastream can be converted into a reference image. Each channel has a sample depth in the range 1 to 16. All samples in the same channel have the same sample depth. Different channels may have different sample depths.
reference in attribute value

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

as a reference within either the value of an attribute in a start-tag, or a default value in an attribute declaration; corresponds to the nonterminal AttValue.
reference in attribute value

From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source

as a reference within either the value of an attribute in a start-tag, or a default value in an attribute declaration; corresponds to the nonterminal AttValue.
reference in content

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

as a reference anywhere after the start-tag and before the end-tag of an element; corresponds to the nonterminal content.
reference in content

From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source

as a reference anywhere after the start-tag and before the end-tag of an element; corresponds to the nonterminal content.
reference in DTD

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

as a reference within either the internal or external subsets of the DTD, but outside of an EntityValue, AttValue, PI, Comment, SystemLiteral, PubidLiteral, or the contents of an ignored conditional section (see )..
reference in DTD

From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source

[E90]as a reference within either the internal or external subsets of the DTD, but outside of an EntityValue, AttValue, PI, Comment, SystemLiteral, PubidLiteral, or the contents of an ignored conditional section (see )..
reference in entity value

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

as a reference within a parameter or internal entity's literal entity value in the entity's declaration; corresponds to the nonterminal EntityValue.

The Glossary System has been built by Pierre Candela during an internship in W3C; it's now maintained by Dominique Hazael-Massieux

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