3. Glossary of Terms and Definition

Accessibility Problem
Instance of Web content that is not accessible Web content.
Accessible Application:
Application that has an increased likelihood of being easier to use by people with disabilities or people who are using the application under circumstances that impair their sensory or motor performance. For more information, see checkpoints 1.1 to 1.6.
Accessible Authoring Practice
An authoring practice (e.g. creating a stylesheet, creating a document structure, writing clearly, etc.) that contributes to the production accessible Web content.
Accessible Web Content:
Web content that conforms with *WCAG*. This Web content has an increased likelihood of being easier to use by people with disabilities or people who are using the application under circumstances that impair their sensory or motor performance. For more information, see WCAG@@link to bridging document@@.
Attribute
This document uses the term "attribute" in the XML sense: an element may have a set of attribute specifications (refer to the XML 1.0 specification [XML] section 3).
Auditory Description
An auditory description 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.
Authored "by hand"
When the author specifies the precise text string, as by typing into a text editor.
Authoring Tool
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Captions
"Captions" are essential text equivalents for movie audio. Captions consist of a text transcript of the auditory track of the movie (or other video presentation) that is synchronized with the video and auditory tracks. Captions are generally rendered graphically and benefit people who can see but are deaf, hard-of-hearing, or cannot hear the audio.
Conversion
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Editing View
An "editing view" is a view provided by the authoring tool that allows editing.
Element
An element is a document structuring unit declared in the DTD. The element's content model is defined in the DTD, and additional semantics may be defined in the prose description of the element. The proper name for XML tags and the content they contain.
Example: <tag>content</tag>
Equivalent
Content is "equivalent" to other content when both fulfill essentially the same function or purpose upon to the user. In the context of this WC document, the equivalent must fulfill essentially the same function for the person with a disability (at least insofar as is feasible, given the nature of the disability and the state of technology), as the primary content does for the person without any disability (e.g. the text "The Full Moon" might convey the same information as an image of a full moon when presented to users.).Note: that equivalent information focuses on fulfilling the same function. If the image is part of a link and understanding the image is crucial to guessing the link target, an equivalent must also give users an idea of the link target. Providing equivalent information for inaccessible content is one of the primary ways authors can make their documents accessible to people with disabilities.
Inform
To make the author aware of an event or state. The tool may inform the author immediately or following an appropriate delay.
Markup Language
Authors encode information using a "markup language" such as HTML [HTML4], SVG [ SVG], or MathML [MATHML].
Prompt
"Prompt" should not be confused with the narrow software sense of the term. Instead, ATAG 2.0 uses "prompt" in a wider sense, to mean the process of eliciting author input. This process should be:
(1) initiated by the tool rather than the user.
(2) user configurable in form and timing.
(3) implemented in a way that invites authors to develop a positive disposition and awareness towards accessible authoring practices
Property
A "property" is a piece of information about an element. This might be the the element type or the value of one of its attributes or some styling information. In a database, properties of a particular element may include values of the entry, and acceptable data types for that entry.
Transcript
A "transcript" is a text representation of sounds in an audio clip or an auditory track of a multimedia presentation. A "collated text transcript" for a video combines (collates) caption text with text descriptions of video information (descriptions of the actions, body language, graphics, and scene changes of the visual track). Collated text transcripts are essential for individuals who are deaf-blind and rely on Braille for access to movies and other content.
Transformation
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User Agent
A user agent is software that retrieves and renders Web content. User agents include graphical desktop browsers, multimedia players, text browsers, voice browsers, and assistive technologies such as screen readers, screen magnifiers, speech synthesizers, onscreen keyboards, and voice input software.
View
Authoring tools may render the same content in a variety of ways; each rendering is called a "view". Some authoring tools will have several different types of view, and some allow views of several documents at once. For instance, one view may show raw markup, a second may show a structured tree, a third may show markup with rendered objects while a final view shows an example of how the document may appear if it were to be rendered by a particular browser. A typical way to distinguish views in a graphic environment is to place each in a separate window.