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

W3C Glossaries

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attribute-list declarations

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

Attribute-list declarations specify the name, data type, and default value (if any) of each attribute associated with a given element type:
audio

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

This content type label refers to all of the requirements related to audio for the following checkpoints: 2.5, 2.6, 3.2, 4.4, 4.5, 4.7, and 4.8. When this label is part of a conformance profile, the user agent must implement at least one audio format. Furthermore, when this label is part of a profile, the user agent must satisfy the requirements of checkpoints 3.2 and 4.7 for all implemented audio formats, not just those identified in a conformance profile. The audio requirements apply to audio content that is recognized as distinct and that, according to the encoding format, may be rendered as a coherent unit.
In this document, the term "audio" refers to content that encodes prerecorded sound.An audio-only presentation is content consisting exclusively of one or more audio tracks presented concurrently or in series. Examples of an audio-only presentation include a musical performance, a radio-style news broadcast, and a narration.An audio object is content rendered as sound through an audio viewport. An audio track is an audio object that is intended as a whole or partial presentation. An audio track may, but is not required to, correspond to a single audio channel (left or right audio channel).An audio description (called an "auditory description" in the Web Content Accessibility Guidelines 1.0 [WCAG10]) is either a prerecorded human voice or a synthesized voice (recorded or generated dynamically) describing the key visual elements of a movie or other animation. The audio description is synchronized with (and possibly included as part of) the audio track of the presentation, usually during natural pauses in the audio track. Audio descriptions include information about actions, body language, graphics, and scene changes.
audio description

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

An audio description (called an "auditory description" in the Web Content Accessibility Guidelines 1.0 [WCAG10]) is either a prerecorded human voice or a synthesized voice (recorded or generated dynamically) describing the key visual elements of a movie or other animation. The audio description is synchronized with (and possibly included as part of) the audio track of the presentation, usually during natural pauses in the audio track. Audio descriptions include information about actions, body language, graphics, and scene changes.
audio track

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

An audio object is content rendered as sound through an audio viewport. An audio track is an audio object that is intended as a whole or partial presentation. An audio track may, but is not required to, correspond to a single audio channel (left or right audio channel).
audio-only presentation

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

An audio-only presentation is content consisting exclusively of one or more audio tracks presented concurrently or in series. Examples of an audio-only presentation include a musical performance, a radio-style news broadcast, and a narration.
audit guard

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

An audit guard is a mechanism used on behalf of an owner that monitors actions and agents to verify the satisfaction of obligations.

auditory description

From Authoring Tool Accessibility Guidelines 1.0 (2000-02-03) | Glossary for this source

An "auditory description" provides information about actions, body language, graphics, and scene changes in a video. Auditory descriptions are commonly used by people who are blind or have low vision, although they may also be used as a low-bandwidth equivalent on the Web. An auditory description is either a pre-recorded human voice or a synthesized voice (recorded or automatically generated in real time). The auditory description must be synchronized with the auditory track of a video presentation, usually during natural pauses in the auditory track.
authentication

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

Authentication is the process of verifying that a potential partner in a conversation is capable of representing a person or organization.

author

From Glossary of Cascading Style Sheets, level 2 CSS2 Specification (1998-05-12) | Glossary for this source

An author is a person who writes documents and associated style sheets. An authoring tool generates documents and associated style sheets.
author

From Voice Extensible Markup Language (VoiceXML) Version 2.0 (2004-03-16) | Glossary for this source

The creator of a VoiceXML document.
author styles

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

Authors styles are style property values that come from content (e.g., style sheets within a document, that are associated with a document, or that are generated by a server).
authored unit

From Glossary of Terms for Device Independence (2005-01-18) | Glossary for this source

Some set of material created as a single entity by an author. Examples include a collection of markup, a style sheet, and a media resource , such as an image or audio clip.
authoring

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

A term for the process of writing a document. "Authoring" seems to have come into use in order to emphasise that document production involved more than just writing.
authoring tool

From Authoring Tool Accessibility Guidelines 1.0 (2000-02-03) | Glossary for this source

An "authoring tool" is any software that is used to produce content for publishing on the Web. Authoring tools include: Editing tools specifically designed to produce Web content (e.g., WYSIWYG HTML and XML editors);Tools that offer the option of saving material in a Web format (e.g., word processors or desktop publishing packages);Tools that transform documents into Web formats (e.g., filters to transform desktop publishing formats to HTML);Tools that produce multimedia, especially where it is intended for use on the Web (e.g., video production and editing suites, SMIL authoring packages);Tools for site management or site publication, including tools that automatically generate Web sites dynamically from a database, on-the-fly conversion and Web site publishing tools;Tools for management of layout (e.g., CSS formatting tools).
authoring tool

From Web Content Accessibility Guidelines 1.0 (1999-05-05) | Glossary for this source

HTML editors, document conversion tools, tools that generate Web content from databases are all authoring tools. Refer to the "Authoring Tool Accessibility Guidelines" ([WAI-AUTOOLS]) for information about developing accessible tools.
authorization

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

The process of determining, by evaluating applicable access control information, whether a subject is allowed to have the specified types of access to a particular resource. Usually, authorization is in the context of authentication. Once a subject is authenticated, it may be authorized to perform different types of access. [STG]

available collections.

From XQuery 1.0: An XML Query Language (2007-01-23) | Glossary for this source

Available collections. This is a mapping of strings onto sequences of nodes. The string represents the absolute URI of a resource. The sequence of nodes represents the result of the fn:collection function when that URI is supplied as the argument.
available collections.

From XML Path Language (XPath) 2.0 (2007-01-23) | Glossary for this source

Available collections. This is a mapping of strings onto sequences of nodes. The string represents the absolute URI of a resource. The sequence of nodes represents the result of the fn:collection function when that URI is supplied as the argument.
available documents.

From XQuery 1.0: An XML Query Language (2007-01-23) | Glossary for this source

Available documents. This is a mapping of strings onto document nodes. The string represents the absolute URI of a resource. The document node is the root of a tree that represents that resource using the data model. The document node is returned by the fn:doc function when applied to that URI.
available documents.

From XML Path Language (XPath) 2.0 (2007-01-23) | Glossary for this source

Available documents. This is a mapping of strings onto document nodes. The string represents the absolute URI of a resource. The document node is the root of a tree that represents that resource using the data model. The document node is returned by the fn:doc function when applied to that URI.

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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