[Contents] [Guidelines]

Implementation Techniques for
Authoring Tool Accessibility Guidelines 2.0
Editor's Draft 28 July 2008
- This version:
- http://www.w3.org/WAI/AU/2008/WD-ATAG20-TECHS-20080707/
- Latest version:
- http://www.w3.org/TR/ATAG20-TECHS/
- Previous version:
- http://www.w3.org/WAI/AU/2008/WD-ATAG20-TECHS-20080310/
- Editors:
- Jutta Treviranus, ATRC, University of Toronto
- Jan Richards, ATRC, University of Toronto
- Tim Boland, NIST
- Jeanne Spellman, W3C
- Previous Editors:
- Matt May (until June 2005 while at W3C)
-
Copyright ©2007 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C liability, trademark and document use rules apply.
This specification provides guidelines for designing Web content authoring
tools that are more accessible for people with disabilities. An authoring
tool that conforms to these guidelines will promote accessibility by providing
an accessible user interface to authors with disabilities as well as enabling,
supporting, and promoting the production of accessible Web content by all
authors.
This document provides non-normative information
to authoring tool developers who wish to satisfy the guidelines in the "Authoring
Tool Accessibility Guidelines 2.0" [ATAG20].
It includes suggested techniques, sample strategies in deployed tools, and
references to other accessibility resources (such as platform-specific software
accessibility guidelines) that provide additional information on how a tool
may satisfy each ATAG 2.0 guideline.
The "Authoring Tool Accessibility Guidelines 2.0" (ATAG 2.0)
is part of a series of accessibility guidelines published by the
W3C Web
Accessibility Initiative (WAI).
May be Superseded
This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.
Editor's Draft of ATAG 2.0
This document is the internal working draft used by the ATAG WG and is updated continuously and without notice. This document has no formal standing within W3C. Please consult the group's home page and the W3C technical reports index for information about the latest publications by this group.
The Authoring Tool Accessibility Guidelines Working Group (AUWG) intends to publish ATAG 2.0 as a W3C Recommendation. Until that time Authoring Tool Accessibility Guidelines 1.0 (ATAG 1.0) [ATAG10] is the stable, referenceable version. This Working Draft does not supersede ATAG 1.0.
W3C Public Draft of Implementation Techniques for ATAG 2.0
This is a W3C Public Working Draft. This draft integrates changes made as a result of comments received on the 23 April 2007 Public Working Draft and it has also been updated to reflect changes made to ATAG 2.0 (5 March 2008 Public Working Draft).
The Working Group seeks feedback on the following points for this draft:
- Are the Techniques clear?
- Do you have any suggestions for Techniques that should be added, modified or removed?
Comments on this working draft are due on or before 21 April 2008. Comments on the draft should be sent to public-atag2-comments@w3.org (Public Archive).
The Working Group (AUWG) intends
to publish the Implementation Techniques for ATAG 2.0 as a W3C Note. A Techniques document was also published for ATAG 1.0 [ATAG10], entitled "Techniques for Authoring Tool Accessibility Guidelines 1.0" [ATAG10-TECHS]. The Working Group expects to update this document in response to queries raised by implementers of the Guidelines, for example to cover new technologies. Suggestions for additional techniques are welcome.
Comments on the draft are welcome at public-atag2-comments@w3.org (Public Archive).
Web Accessibility Initiative
This document has been produced as part of the W3C Web
Accessibility Initiative (WAI). The goals of the AUWG are discussed
in the Working Group charter.
The AUWG is part of the WAI
Technical Activity.
No Endorsement
Publication as a Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsolesced by other documents at any time. It is inappropriate to cite this document as other than work in progress.
Patents
This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.
This section is informative, except where
noted.
This is a Working Draft of the Authoring Tool Accessibility Guidelines (ATAG) version
2.0. This document includes recommendations for assisting developers to make the authoring tools more accessible to people with disabilities, including blindness and low vision, deafness and hearing loss, learning disabilities, cognitive limitations, motor difficulties, speech difficulties, and others. However, even authoring tools that conform to ATAG 2.0 may not be able to address the needs of people with all types, degrees and combinations of disabilities.
In order to achieve accessibility, authoring tools must address the needs of two (potentially overlapping) user groups:
- authors of Web content, whose needs are met by ensuring the authoring
tool user interface itself is accessible (see Part
A of the guidelines), and
- end
users of Web content, whose needs are met by ensuring that all authors are enabled, supported, and guided towards producing accessible
Web content, with the assumption that many authors will not be familiar with the specific needs of end users with disabilities (see Part B of the guidelines).
The guidelines do not include standard usability recommendations except where they have a significantly greater impact on people
with disabilities than on other people.
Note that even content that conforms at the highest level (AAA) will not be accessible to individuals with all types, degrees, or combinations of disability, particularly in the cognitive language and learning areas. Creation of authoring tools that address the specialized needs of these communities for is encouraged, but is outside the scope of this document.
These guidelines have been written to address the requirements
of many different audiences, including, but not limited to:
- Web content authoring tool developers,
- Web content authoring tool users (authors),
- Web content authoring tool purchasers, and
- policy makers.
This is a Working Draft of the Implementation Techniques for Authoring Tool Accessibility Guidelines 2.0. While the Authoring Tool Accessibility Guidelines 2.0 [ATAG20] provides a generic description of the requirements for authoring tools that are accessible to people with disabilities, these implementation techniques provide an interpretation of the guidelines as they apply to real tools. This interpretation represents the best thinking of the Authoring Tool Accessibility Guidelines Working Group (AUWG) and as such is a good guide to achieve conformance to ATAG 2.0. The Working Group encourages developers to implement these techniques where appropriate. However, these techniques do not provide a final definition of ATAG 2.0 conformance and it may be possible to meet the guideline requirements without following these techniques and thus this document is informative. As new methods of conforming to the guidelines come to the attention of the Working Group, these techniques will be updated.
This section is included here for informative purposes. The normative version appears in the Authoring Tool Accessibility Guidelines 2.0 [ATAG20].
ATAG 2.0 defines an "authoring tool" as any application, part of an application, or collection of applications that authors interact with to create, modify or assemble Web content to be used by other people.
The definition applies to all or part of the following types of applications:
- WYSIWYG editors, plain text editors (embedded and stand-alone)
- conversion tools, software that can output Web content technologies (e.g., "Save as HTML")
- blogging tools, wikis, online forums, emailers that produce Web-content
- multimedia authoring tools
- scripting tools, widget development environment
- content management systems, courseware tools, content aggregators
- site management tools
- etc.
Notes on the Definition:
- Any guidelines that require the ability of authors to modify content in some way always assume that the person has author permission.
- Live content authoring tools (e.g., chats, collaboration tools, whiteboards, etc.) are only required to meet Part A. However, many guidelines in Part B may still usefully apply, especially if the tool archives as Web content. For more information, please see the Techniques - Appendix E: Real-time content production.
Components of Web Accessibility
Authoring tools are just one aspect of accessibility. For an overview of the different components of accessibility and how they work together see:
Organization of the ATAG 2.0 Document
Two Parts
ATAG 2.0 is divided into two parts, each reflecting a key aspect
of accessible authoring tools. Part A includes
principles and associated guidelines that are related to ensuring accessibility
of the authoring
tool user interface to authors with disabilities. Part B contains
principles and guidelines related to ensuring support by authoring tools for the creation of accessible
Web content by any author (not just those with disabilities) to end
users with disabilities.
Part A: Make the authoring tool user interface accessible
The guidelines and success criteria in Part A are organized around the following four principles, adapted from the four principles in WCAG 2.0:
- Authoring tool must facilitate access by assistive technology - Assistive technologies can only provide augmented display and control to their
users if the relevant information is made available by authoring tools.
- Authoring tool must be perceivable - Authors with a wide range of abilities must be able to perceive its user interface components.
- Authoring tool must be operable - Authors with a wide range of abilities must be able to operate its user interface components.
- Authoring tool must be understandable - Authors with a wide range of abilities must be able to understand the user interface components that they can perceive and operate.
Part B: Support the production of accessible content
There are three principles in Part B:
- Production
of accessible content must be enabled - The creation of accessible content is dependent on the combined actions of the
authoring tool and the author. This guideline specifies the responsibilities that
rest exclusively with the tool.
- Authors must be supported
in the production of accessible content - Actions may be taken at the author's initiative that may result in accessibility
problems. The authoring tool should include features that provide
support and guidance to authors in
these situations, so that accessible
authoring practices can be followed and accessible
web content can be produced.
- Accessibility
solutions must be promoted and integrated -Authoring tools should encourage the discovery of tools, features, or functionality which support accessible authoring practices, while at the same time, integrating functions related to accessibility in order to ensure that authors make them common practice.
Note: While the requirements in Part B do not
deal with the accessibility of the authoring tool user interface per se, it should
be noted that any of the features (e.g., checker, tutorial) added to an authoring tool to meet
the Part B success criteria must also meet the user interface accessibility requirements of Part
A.
Success Criteria
Under each guideline there are success criteria that describe specifically what must be achieved in order to conform. They are similar to the "checkpoints" in ATAG 1.0. Each success criterion is written as a statement that will be either true or false when a specific authoring tool is tested against it. While all of the ATAG 2.0 success criteria are written to be testable and some test automation may be possible, human testing will usually be required. In order to meet the needs of different groups and different situations, three levels of conformance are defined: A (lowest), AA, and AAA (highest).
Each of the success criteria has a link to the Techniques document that provides:
- "Sufficient" techniques for meeting the success criteria, and @@define@@
- optional "Advisory" techniques.@@define@@
Note: Any success criteria that are judged not applicable
to a particular authoring tool are treated as satisfied for
conformance purposes, as long as a rationale is provided.
Implementation Techniques
The techniques are informative (i.e., non-normative).
The list of techniques for each success criteria are not exhaustive. Rather, these techniques represent an illustrative sampling of approaches. There may be many other ways a tool might be designed and still meet the normative criteria contained in the success criteria.
Some techniques are labeled as "Sufficient". These techniques are judged by the Working Group to meet the success criteria to which they apply. Conditional wording may limit the applicability of any given sufficient technique to a particular type of content or authoring tool. Inclusion does not imply that the description will be verified or is verifiable. When multiple techniques must be implemented together to be sufficient, they are labeled "Sufficient in combination".
Some techniques are labeled as "Advisory". These techniques are included as additional information.
Note: Use of "mock" screenshots is for general illustrative purposes only. They do not imply endorsement of similar tools by the Working Group or suggests that these screenshots represent the best or only implementations.
Levels of Conformance
Authoring tools may claim full conformance
to ATAG 2.0 at one of three "full" conformance levels. The level achieved depends
on the level of the success
criteria that have been satisfied. The full conformance
levels are:
- Full ATAG 2.0 Conformance at Level "A"
The authoring tool satisfies all of
the Level A success criteria.
- Full ATAG 2.0 Conformance at Level "Double-A"
The authoring tool satisfies all of
the Level A and Level
AA success criteria.
- Full ATAG 2.0 Conformance at Level "Triple-A"
The authoring tool satisfies all of
the success criteria.
@@Maybe remove partial@@
In addition, a "partial conformance" claim option is available
in cases where an authoring tool has satisfied all of the success criteria
at a specified level in one of the two Parts of the document (i.e., "Part
A: Make the authoring tool user interface accessible" and "Part
B: Support the production of accessible content"). The partial
conformance levels are:
- Partial ATAG 2.0 Conformance Level "A":
Authoring Tool User Interface
The authoring tool satisfies all of the Level
A success criteria in Part A. Nothing is claimed about Part B.
- Partial ATAG 2.0 Conformance Level "Double-A":
Authoring Tool User Interface
The authoring tool satisfies all of the Level
A and Level AA success criteria in Part A. Nothing
is claimed about Part B.
- Partial ATAG 2.0 Conformance Level "Triple-A":
Authoring Tool User Interface
The authoring tool satisfies all of the success criteria
in Part A. Nothing is claimed about Part B.
- Partial ATAG 2.0 Conformance Level "A":
Content Production"
The authoring tool satisfies all of the Level
A success criteria in Part B. Nothing is claimed about Part A.
- Partial ATAG 2.0 Conformance Level "Double-A":
Content Production"
The authoring tool satisfies all of the Level
A and Level AA success criteria in Part B. Nothing
is claimed about Part A.
- Partial ATAG 2.0 Conformance Level "Triple-A":
Content Production"
The authoring tool satisfies all of the success criteria
in Part B. Nothing is claimed about Part A.
Note: The Working Group remains committed
to the guiding principle that: "Everyone should
have the ability to create and access Web content". Therefore, it is
recommended that partial conformance be claimed as a step towards full conformance.
Relationship
to the Web Content Accessibility Guidelines (WCAG)
ATAG 2.0 is intended to be used in conjunction with WCAG 2.0 or similar Web content accessibility guidance (e.g., WCAG 1.0, regulations that include WCAG 2.0, etc.).
The relationship is as follows:
- The normative requirements of ATAG 2.0 have been formulated to apply to many different types of authoring tools that in turn may produce a range of Web content technologies.
- ATAG 2.0 points to the WCAG 2.0 success criteria in order to define the ATAG 2.0 concept of "accessible authoring practices", which authoring tools are required to support in various ways.
- The normative requirements of WCAG are themselves not technology-specific. However, specific informative guidance for satisfying the success criteria for particular Web content technologies are provided in separate documents.
- ATAG 2.0 Conformance Claims are supported by WCAG-conforming examples of Web content produced by the authoring tool (e.g., samples of automatically-generated content).
ATAG 2.0 Guidelines ATAG 2.0 Implementation Techniques
The success criteria and applicability notes in this section are normative.
The guidelines and success criteria are included here for informative purposes. The normative version appears in the Authoring Tool Accessibility Guidelines 2.0 [ATAG20].
PART A:
Make the authoring tool user interface accessible
Applicability Notes:
Scope: The success criteria in Part A apply to all aspects of the authoring tool user interface that are under the control of the developer. This includes functionalities that are independent of the content being edited, such as what is sometimes referred to as the authoring tool's "chrome" (e.g., menus, button bars, status bars, etc.) and also user preferences and documentation, etc. In addition, the developers' responsibility covers certain aspects of other functionalities that reflect the content being edited (e.g., ensuring that an image label present in the content is available programmatically). However, where an accessibility problem in the user interface is caused directly by an accessibility problem in the content it is reflecting (e.g., if an image in the content lacks a label), then this would not be considered a deficiency in the accessibility of the authoring tool user interface.
Recognized: If success criteria apply to recognized types of content (e.g., tool-recognized equivalent alternatives), the conformance claim must list the recognized types.
PRINCIPLE
A.1: Authoring tool user interfaces must follow applicable accessibility guidelines
Guideline A.1.1
[For the authoring tool user interface] Ensure that Web-based
functionality is accessible.
[Techniques]
[Return to Guideline]
Rationale: In
addition to generally improving the accessibility of the authoring
tool user interface, implementing Web-based functionality (e.g., editing views, documentation) using accessible Web content facilitates communication with assistive
technologies via user agents.
Applicability Notes:
- This guideline also applies to any parts of authoring tools that are Web-based (e.g., help systems).
Level A Success Criteria for Guideline A.1.1
- A.1.1.1 Web-Based "A" Accessible: Web-based authoring tool user interfaces conform to WCAG Level "A".
- Technique A.1.1.1-1 [Advisory]: Selecting a target Web content accessibility standard (e.g., WCAG 2.0 [WCAG20]) in the early stages of development planning.
- Technique A.1.1.1-2 [Sufficient]: Following
the requirements of WCAG Level A when developing any Web-based functionality.
- Technique A.1.1.1-3 [Advisory]: Testing Web-based authoring tool user interfaces using automated evaluation and repair tools.
- Example: Throughout development of an authoring tool, with the tool in various representative states, the editing interface (including test content being authored) is tested using accessibility evaluation software. Problems are corrected and the process iterates.
Level AA Success Criteria for Guideline A.1.1
- A.1.1.2 Web-Based "AA" Accessible: Web-based authoring tool user
interfaces conform to WCAG Level "AA".
- See Techniques for A.1.1.1 using WCAG Level AA.
Level AAA Success Criteria for Guideline A.1.1
- A.1.1.3 Web-Based "AAA" Accessible: Web-based authoring tool user
interfaces conform to WCAG Level "AAA".
- See Techniques for A.1.1.1 using WCAG Level AAA.
Guideline A.1.2
[For the authoring tool user interface] Ensure that non-Web-based functionality is accessible. [Techniques] [Return to Guideline]
Rationale: Following existing accessibility standards and/or platform conventions will facilitate access by all authors, including those using assistive technologies.
Applicability Notes:
- This guideline also applies to any parts of authoring tools that are non-Web-based (e.g., client-side file uploaders).
Level A Success Criteria for Guideline A.1.2
- A.1.2.1 Non-Web-Based Accessible (Level A):
- Technique A.1.2.1-1 [Sufficient]: Implementing the input, focus, selection and product installation sections of accessibility guidelines and best practice documents that are relevant to the platform. These may include:
- Eclipse: "Designing Accessible Plug-ins in Eclipse" [ECLIPSE-ACCESS]
- Gnome/KDE:
- Java:
- "IBM Guidelines for Writing Accessible Applications Using 100% Pure Java" [JAVA-ACCESS]
- "Java accessibility guidelines and checklist" [JAVA-CHECKLIST]
- Lotus Notes: "Lotus Notes accessibility guidelines" [NOTES-ACCESS]
- Mac OS: "Accessibility Documentation" [APPLE-ACCESS]
- "Mac OS X keyboard shortcuts" [MACOSX-KEYS]
- Microsoft Windows:
- General Guides:
- "Application Software Design Guidelines" [TRACE-REF]
- "Ergonomics of human-system interaction -- Guidance on accessibility for human-computer
interfaces" ISO standard [ISO-TS-16071]
- "Designing for Accessibility" [SUN-DESIGN]
- "[Electronic Information Technology Access Advisory Committee] EITAAC Desktop Software standards"
[EITAAC]
- "Making Educational Software and Web Sites Accessible"
[EDU-SOFT-ACCESS]
- "Software Accessibility" [IBM-ACCESS]
- "What is Accessible Software" [WHAT-IS]
Non-Web-based authoring tool user interfaces comply with, and cite in the conformance claim, the "Level A" requirements of standards and/or platform conventions that benefit accessibility. The "Level A" requirements are those that are functionally equivalent to WCAG Level A success criteria.
Level AA Success Criteria for Guideline A.1.2
- A.1.2.2 Non-Web-Based Accessible (Level AA):
- Technique A.1.2.1-1 [Sufficient]: Implementing the input, focus, selection and product installation sections of accessibility guidelines and best practice documents that are relevant to the platform. These may include:
- Eclipse: "Designing Accessible Plug-ins in Eclipse" [ECLIPSE-ACCESS]
- Gnome/KDE:
- Java:
- "IBM Guidelines for Writing Accessible Applications Using 100% Pure Java" [JAVA-ACCESS]
- "Java accessibility guidelines and checklist" [JAVA-CHECKLIST]
- Lotus Notes: "Lotus Notes accessibility guidelines" [NOTES-ACCESS]
- Mac OS: "Accessibility Documentation" [APPLE-ACCESS]
- "Mac OS X keyboard shortcuts" [MACOSX-KEYS]
- Microsoft Windows:
- General Guides:
- "Application Software Design Guidelines" [TRACE-REF]
- "Ergonomics of human-system interaction -- Guidance on accessibility for human-computer
interfaces" ISO standard [ISO-TS-16071]
- "Designing for Accessibility" [SUN-DESIGN]
- "[Electronic Information Technology Access Advisory Committee] EITAAC Desktop Software standards" [EITAAC]
- "Making Educational Software and Web Sites Accessible" [EDU-SOFT-ACCESS]
- "Software Accessibility" [IBM-ACCESS]
- "What is Accessible Software" [WHAT-IS]
Non-Web-based authoring tool user interfaces comply with, and cite in the conformance claim, the "Level AA" requirements of standards and/or platform conventions that benefit accessibility. The "Level AA" requirements are those that are functionally equivalent to WCAG Level AA success criteria
Level AAA Success Criteria for Guideline A.1.2
- A.1.2.3 Non-Web-Based Accessible (Level AAA):
- Technique A.1.2.1-1 [Sufficient]: Implementing the input, focus, selection and product installation sections of accessibility guidelines and best practice documents that are relevant to the platform. These may include:
- Eclipse: "Designing Accessible Plug-ins in Eclipse" [ECLIPSE-ACCESS]
- Gnome/KDE:
- Java:
- "IBM Guidelines for Writing Accessible Applications Using 100% Pure Java" [JAVA-ACCESS]
- "Java accessibility guidelines and checklist" [JAVA-CHECKLIST]
- Lotus Notes: "Lotus Notes accessibility guidelines" [NOTES-ACCESS]
- Mac OS: "Accessibility Documentation" [APPLE-ACCESS]
- "Mac OS X keyboard shortcuts" [MACOSX-KEYS]
- Microsoft Windows:
- General Guides:
- "Application Software Design Guidelines" [TRACE-REF]
- "Ergonomics of human-system interaction -- Guidance on accessibility for human-computer
interfaces" ISO standard [ISO-TS-16071]
- "Designing for Accessibility" [SUN-DESIGN]
- "[Electronic Information Technology Access Advisory Committee] EITAAC Desktop Software standards" [EITAAC]
- "Making Educational Software and Web Sites Accessible" [EDU-SOFT-ACCESS]
- "Software Accessibility" [IBM-ACCESS]
- "What is Accessible Software" [WHAT-IS]
Non-Web-based authoring tool user interfaces comply with, and cite in the conformance claim, the "Level AAA" requirements of standards and/or platform conventions that benefit accessibility. The "Level AAA" requirements are those that are functionally equivalent to WCAG Level AAA success criteria
- See Techniques for A.1.2.1 using WCAG Level AAA.
PRINCIPLE
A.2: Editing views must be perceivable
Guideline A.2.1
[For the authoring tool user interface] Provide access to alternative equivalents in the content.
[Techniques]
[Return to Guideline]
Rationale: People
who have difficulty perceiving non-text objects are often able to
access text alternatives of the same information because there are a variety of ways to display text (e.g., magnification, enhancement, text-to-speech, Braille output)
Applicability Notes:
- This guideline does not apply to plain text editors as they do not render non-text content.
Level A Success Criteria for Guideline A.2.1
- A.2.1.1 Alternative equivalents in the content:
Technique A.2.1.1-1 [Sufficient]: In editing views that render non-text objects, displaying in an editable fashion any text alternatives
(e.g., short text labels, long text descriptions) associated with the objects (e.g., within a properties dialog).
- Technique A.2.1.1-2 [Sufficient]: When appropriate for a Web technology (i.e., the technology is human-readable), providing an source content editing view that allows direct editing of all properties.
Technique A.2.1.1-3 [Advisory]: Providing an option to toggle between rendered non-text objects and the text alternatives for the objects.
- Example: An option to toggle fully rendered images with their text alternatives.
On the left is the image (of the "earth rise" as seen from the
moon) rendered as usual. On the right is a different rendering, this
one including an area for editing the alternate text and a link to edit the
long description. A small preview rendering of the image is included
to provide context. (Source: mockup by AUWG)

Technique A.2.1.1-4 [Sufficient]: In editing views that render multimedia, also displaying any associated synchronized alternatives (e.g., captions for video, captions for audio files, audio descriptions for videos).
Editing
views that render non-text content provide authors with access to any recognized equivalent alternatives.
Level AA Success Criteria for Guideline A.2.1
- (No level AA success criteria for Guideline A.2.1)
Level AAA Success Criteria for Guideline A.2.1
- (No level AAA success criteria for Guideline A.2.1)
Guideline A.2.2
[For the authoring tool user interface] Provide programatic access to all information in the editing view @@Define Editing View@@.
[Techniques]
[Return to Guideline]
Rationale: Authors need to have access to and control over both the functional significance of presentation and also, in the context of authoring, the presentation that will be experienced by the end user. This is especially important for user interface components that do not implement an accessibility platform architecture or leverage existing implementations (e.g. custom user interface components built via JavaScript and CSS). Some authors require display settings that differ from the presentation that they intend to define for the published content (e.g., using a high contrast setting during editing content that is not intended to be high contrast).
Level A Success Criteria for Guideline A.2.2
- A.2.2.21 Purpose of Added Presentation: If the authoring tool modifies the presentation of the content being edited, then the functional purpose for the modification is made available via the platform (e.g., if misspelled text is underlined, the fact that it is misspelled is made available).
- Technique A.2.2.2-1 [Sufficient]: Making available programmatically the semantics of any presentation that is added to the editing view by the authoring tool.
- Example: A change tracking feature displays inserted text in green and deleted text in red with a strike through. Instead of implementing this using simple CSS selectors, the XHTML elements
ins
and del
are used, since they have associated semantics.
- A.2.2.32 Access to Text Presentation (Minimum): If an editing view (e.g., WYSIWYG) renders any of the following text presentation properties and those properties are editable by any editing view (e.g., instruction level), then the properties are made available via the platform:
- (a) font,
- (b) style (e.g., italic, bold),
- (c) color, and
- (d) size.
- Technique A.2.2.3-1 [Sufficient]: Making available via the platform, information on the size, font, foreground and background color, font weight, and position of any text that is under the control of the author.
Example: Using a WYSIWYG authoring tool, an author is able to mark a paragraph using a "footnote" style class, then query the text to check on the rendered size of the text to ensure that the styling information has been picked up properly.
Level AA Success Criteria for Guideline A.2.2
- (No level AA success criteria for Guideline A.2.2)
Level AAA Success Criteria for Guideline A.2.2
- A.2.2.43 Access to Text Presentation (Enhanced): Any text presentation properties (text size, positioning, etc.) that are rendered in an editing view (e.g., WYSIWYG editing views ) and are editable by any editing view are available via the platform.
- See Techniques for A.2.2.3, but for all text presentation properties rendered and editable by the authoring tool.
Guideline A.2.3: Ensure the independence of the authors' display preferences.
Rationale: Some authors will require display settings that differ from the presentation that they intend to define for the published content (e.g., an author uses large fonts for themselves, while editing content that is not intended to have a large font in the final content).
- A.2.2.13 Independence of Display: Editing
views that usually have their display characteristics set
by rendering the content being
edited (e.g., WYSIWYG editing views) allows the authors' visual and audio display settings to override these characteristics without
affecting the content (e.g.,
markup, style sheets, etc.) being edited.
- Technique A.2.2.1-1 [Sufficient]: Providing
the author with the ability to change the fonts, colors, sizing (zoom), etc.
within rendered editing views (or by changing the platform display settings), independently
of the ability to control the markup that is actually produced.
Example: A WYSIWYG authoring tool includes editing interface controls for setting the text and background colors as they will appear to the end user, but also includes a "View" area in its preference settings, where the author can choose to override the WYSIWYG rendering with their own text and background color settings.
- Technique A.2.2.1-2 [Advisory]: Allowing the author
to specify a preferred style sheet that is used in the editing view to override the actual "published" style of
the document.
PRINCIPLE
A.3: Editing views must be operable
Guideline A.3.1
[For the authoring tool user interface] Enhance keyboard access to authoring features. [Techniques] [Return to Guideline]
Rationale: Providing alternate keyboard accessibility provides access for people with limited mobility and people with
visual disabilities, who cannot rely on hand-eye coordination for
navigating the user interface.
Applicability Notes:
Level A Success Criteria for Guideline A.3.1
- A.3.1.1 Important Command Functions: If the authoring tool includes any of the following functions, authors can enable
key-plus-modifier-key (or single-key) access to them (where allowed by the operating environment):
- (a) open help system,
- (b) open new content,
- (c) open existing content,
- (d) save content,
- (e) close content,
- (f) cut/copy/paste,
- (g) undo/redo, and
- (h) open find/replace function.
- Technique A.3.1.1-1 [Sufficient]: Providing key-plus-modifier-key (or single-key) access for all of the functions listed here.
- Example: On a Windows platform, an authoring tool uses the following keyboard commands: opening help system (e.g., F1); open new content (e.g., ctrl-N); open existing content (e.g., ctrl-O); save content (e.g., ctrl-S); close content (e.g., ctrl-W); cut/copy/paste (e.g., ctrl-X, ctrl-C, ctrl-V); undo/redo (e.g., ctrl-Z, ctrl-Y); open find/replace function (e.g., ctrl-F, ctrl-H).
- Technique A.3.1.1-2 [Advisory]: Following platform conventions when choosing keystrokes, such as:
- Technique A.3.1.1-3 [Advisory]: Expanding direct keyboard access beyond the functions listed in this success criterion to other frequently used functions of a tool (e.g., to perform text formatting, move quickly between windows, etc.)
- A.3.1.4 Importing Content Keyboard Trap: The authoring tool prevents keyboard traps as follows (Level A):
- (a) in the UI: if keyboard focus can be moved to a component using the keyboard, then focus can be moved away from that component using standard sequential keyboard commands (e.g., TAB key) and
- (b) in the rendered editing views: provides a documented direct keyboard command that will always restore keyboard focus to a known location (e.g., the menus) and
- (c) in the rendered editing views: provides a documented direct keyboard command that will always move keyboard focus to a subsequent focusable element
Level AA Success Criteria for Guideline A.3.1
- (No level AA success criteria for Guideline A.3.1)
Level AAA Success Criteria for Guideline A.3.1
- (No level AAA success criteria for Guideline A.3.1)
Guideline A.3.2
[For the authoring tool user interface] Enable time-independent interaction.
[Techniques] [Return to Guideline]
Rationale: People
who have difficulty typing, operating the mouse, or processing information
can be prevented from using systems with short time limits.
Applicability Note: Several of the success criteria in this guideline only apply when there are time limits put on the author.
Level A Success Criteria for Guideline A.3.2
- A.3.2.1 Data Saved: If the authoring tool ends an authoring session due to a time limit (e.g., authenticated session expires), then authors have the global option to ensure that the content being edited is saved. For Web-Based Authoring Tools, this applies to any content that has already been submitted to the server by the user agent.
- A.3.2.2 Timing Adjustable: The user is warned before time expires and given at least 20 seconds to extend the time limit with a simple action (e.g. "press the space bar").
- Technique A.3.2.2-1 [Sufficient]: Providing a preference setting to universally extend all authoring tool-controlled time limits.
- Technique A.3.2.2-2 [Sufficient]: Allowing the author to extend authoring-controlled time limits whenever they occur.
- A.3.2.3 Moving Targets: If the user interface includes any targets for authors' actions (e.g.,a selectable component of an animation), then authors can stop that movement.
- Technique A.3.2.3-1 [Sufficient]: All components that can be targets for author actions can be stopped.
- Example: In a timeline-based animation editor, a draggable time indicator moves when the animation is being previewed. This movement can be stopped with the "Stop" button.
Level AA Success Criteria for Guideline A.3.2
- (No level AA success criteria for Guideline A.3.2)
Level AAA Success Criteria for Guideline A.3.2
- A.3.2.4 No Time Limits: Authors have the option to remove time limits on authoring sessions.
- Technique A.3.2.4-1 [Sufficient]: Ensuring that the authoring tool never imposes time limits
- Technique A.3.2.4-2 [Advisory]: Even if an external process is causing a time limit, considering ways to reduce the impact on the author (e.g., giving advance warning, assisting with the time-limited action, etc.).
Guideline A.3.3
[For the authoring tool user interface] Help authors avoid flashing that could cause seizures. [Techniques] [Return to Guideline]
Rationale: Flashing
can cause seizures in people with photosensitive epilepsy.
Level A Success Criteria for Guideline A.3.3
- A.3.3.12 Static View: If an editing view renders content (e.g. WYSIWYG) then then the author has the global option of a static view in which time-based content appears in a fixed state.
Level AA Success Criteria for Guideline A.3.3
- (No level AA success criteria for Guideline A.3.3)
Level AAA Success Criteria for Guideline A.3.3
- (No level AAA success criteria for Guideline A.3.3)
Guideline A.3.4
[For the authoring tool user interface] Enhance navigation and editing via content structure. [Techniques] [Return to Guideline]
Rationale: People who have difficulty typing or operating the mouse benefit when authoring tools use the structure present in the content to simplify navigation and editing.
Level A Success Criteria for Guideline A.3.4
- A.3.4.1 Edit by Structure: If an editing
view displays a structured
element set, then authors can, with a simple action, select
any element in
the set and perform editing functions (e.g., cut, copy, paste, presentation)
on that element, its contents, and its sub-elements.
- Technique A.3.4.1 [Sufficient]: Ensuring that when an element is selected, any content, including sub-elements, of the element are also selected. Then, ensuring that when a selected element with content, including sub-elements, is the subject of an operation (cut, copy, styling, delete) the element's content should also be subject to the same operation unless the operation targets the element only. Note that various editing functions will apply differently when performed on a selected element. These differences might be classified according to their scope, as follows:
(a) "element, content and sub-elements": These functions target the entire selection. Examples of these functions include cut, copy, and delete.
- Example: In an HTML editor , when a
<table>
element is selected and the "delete" operation is performed, the entire table is deleted including sub-elements ( <tr>
and <td>
) and any text content etc. within the table.
- (b) "element only": These functions only target the top level element of the selection, even if the effect cascades down to sub-element content when it is rendered. Examples of functions of this type include, "Emphasis" which should apply styling to the top level element (e.g.,
<p>
) while not making any source changes to sub-elements (e.g., strong) (even though the content of sub-elements may be rendered differently) and “strip element tags” that deletes the markup of the top level element without affecting its sub-element.
- Example: In an HTML editor, when a
<table>
element is selected and the "strip element tags" operation is performed, the operation targets the <table>
only, so this set of tags is removed, leaving sub-elements ( <tr>
and <td>
) and any text content etc.
- (c) "content and sub-elements only": These functions target the content, including sub-elements of the top level element of the selection without having any affect on the markup of that top level element. An example of this might be a “Replace Contents” function:
Level AA Success Criteria for Guideline A.3.4
- A.3.4.2 Navigate By Element Type: If an editing view displays a structured element set, authors can move the editing focus forward/backward to the next identical element.
- A.3.4.3 Navigate By Headings: If an editing view displays a structured element set, authors can move the editing focus forward/backward to the heading, regardless of level.
- A.3.4.43 Navigate Tree Structures: If an editing
view displays a structured
element set, authors can, with a simple action, move
the editing focus from any element to
other elements in the set with any of the following
relationships (if they exist):
- (a) Parent: the element immediately
above,
- (b) Child: the first element immediately
below,
- (c) Previous Sibling: the element immediately
preceding at the same level, and
- (d) Next Sibling: the element immediately
following at the same level.
- Technique A.3.4.3-1 [Sufficient]: Providing the ability to move focus from any element to the element that contains it (i.e., parent element), if any. Also providing the ability to move focus from any element to the first sub-element that it contains (i.e., first child element), if any. Also providing the ability to move focus from any element to the element immediately preceding it as a sub-element of the same parent element (i.e., previous sibling). Also providing the ability to move focus from any element to the element immediately following it as a sub-element of the same parent element (i.e., next sibling).
Example: An authoring tool in which a <tr>
element
has current focus and is therefore highlighted in the editing view. As
well, breadcrumbs in the status bar trace the path from the root element
to the current element, <html> <body> <table> <tr>
.
A pop-up menu from the selected element shows that keystrokes are available
to move the selection focus to the parent element, <table>
,
of the current element, to the child elements, in this case two <td>
elements
and to the next and previous element pointed to by the same parent element
(in this case to preceding and following <tr>
elements).
(Source: mockup by AUWG)

- Technique A.3.4.3-2 [Advisory]: Providing an "outline"
or "structure" view of the document that organizes the structured element set into a document tree or graph.
- Technique A.3.4.3-3 [Advisory]: If loops are possible within the structured element set, providing a mechanism for alerting the author when they have completed a loop.
- Technique A.3.4.3-4 [Advisory]: Ensuring that a smooth transition exists between navigation via the content structure to a particular element and commencing to edit that element.
Level AAA Success Criteria for Guideline A.3.4
- (No level AAA success criteria for Guideline A.3.4)
Guideline
A.3.5 [For the authoring tool user interface] Provide
text search. [Techniques] [Return to Guideline]
Rationale: People
who have difficulty typing or operating the mouse benefit from the ability to navigate to arbitrary points within editing views.
Applicability Notes:
Level A Success Criteria for Guideline A.3.5
- (No level A success criteria for Guideline A.3.5)
Level AA Success Criteria for Guideline A.3.5
- A.3.5.1 Text Search: A function is provided that allows text search of the content, which meets the following conditions:
- (a) Search All Editable: can search any textual information (including
text content, text
alternatives for non-text
objects, metadata, markup) that is editable using the authoring tool.
- (b) Bi-Directional: can search backwards and forwards. [UAAG 2.0]
- (c) Case Sensitive: can search in both case sensitive and case insensitive modes. [UAAG 2.0]
- (d) May Switch Views: permissible to require authors to switch editing views to perform search results (e.g., from WYSIWYG to instruction level to search for markup tags).
- Technique A.3.5.1-1 [Sufficient]: Supporting bi-directional, case sensitive searching for plain text sequences within the content (i.e., text between the open and close tags of an element, text in a content management database) and within text alternatives for non-text content (i.e., short text labels, long text descriptions, etc.) even when this textual information is actually encoded as part of the markup (e.g., as an attribute value).
- Example: Searching for a term yields occurrences within regular page content but also in the alt-text of images, long descriptive text, and metadata values.
- Example: Searching for the text string "able", with the source code option checked, yields results that include
<table>
elements.
- Technique A.3.5.1-2 [Advisory]: Providing structure-based searching that takes into account structural roles and relationships.
- Example: A search facility that makes effective use of structure. Here the author has chosen to find the "element" with the name "img", "with attribute" "height" "equal to" "100", where each value in quotation marks was editable. The replacement action is to "set attribute" "height" to "50". The following checkbox options are available "match case", "ignore white space" and "search text alternatives". The facility also includes the following buttons "Find Next", "Find all", "Replace", "Replace All", "Close" and "Help". (Source: mockup by AUWG)

- Technique A.3.5.1-3 [Advisory]: Providing more advanced search options, such as:
- text search options such as replacement, wildcard characters, whole word matching, search repetition, and highlighting of all occurrences.
- option to search the content only, the markup only, or both.
- use metadata (per WCAG 2.0 [WCAG20]) to assist searching of large collections, or of timed presentations.
- for tools that manage a database or multiple files, provide a search function that can search through the different pieces of content at once.
- allow the author to select an area by similarity to the search probe (e.g., closeness of color in an image editor, etc.)
Level AAA Success Criteria for Guideline A.3.5
- (No level AAA success criteria for Guideline A.3.5)
Guideline A.3.6
[For the authoring tool user interface] Manage preference settings. [Techniques] [Return to Guideline]
Rationale: Providing
the ability to save and reload sets of keyboard and display preference
settings benefits people using multi-user tools as well as people who have needs that differ over time (e.g., due to fatigue).
Level A Success Criteria for Guideline A.3.6
- (No level A success criteria for Guideline A.3.6)
Level AA Success Criteria for Guideline A.3.6
- A.3.6.1 Save Settings: Preference settings are stored for any of the following that the authoring tool controls
(i.e., not controlled by the platform):
- Technique A.3.6.1-1 [Sufficient]: Storing configuration options (not controlled by the platform) for (a) keyboard operability, (b) the visual display, (c) for the auditory display.
- Example: In a Web-based authoring tool, the author must log in. Once they do, they are presented with display/control preferences profiles that they have previously customized. The author can change their profile at any time.
Level AAA Success Criteria for Guideline A.3.6
- A.3.6.2 Multiple Sets: Choosing between multiple sets of preferences (e.g., personal profiles,
personal settings) are supported for any of the following that the authoring tool controls (i.e., not controlled by the platform):
- Technique A.3.6.2-1 [Sufficient]: Providing the option of multiple configuration sets of options. Each set contains the configuration settings (not controlled by the platform) for (a) keyboard operability, (b) the visual display, (c) for the auditory display.
- A.3.6.3 Options Wizard: Authors are provided with an accessibility option-setting "wizard" to configure options related to Part A.
- Technique A.3.6.3-1 [Sufficient]: Providing a wizard that walks the user through the configuration options, providing explanations and previews of how the configuration options will change the display.
- Example: The wizard follows an interview format, asking the author about general preference areas (e.g., seeing the screen, using the keyboard) and only becoming more detailed if the author affirms an area.
Guideline A.3.7
[For the authoring tool user interface] Ensure that previews are
as accessible as existing user
agents. [Techniques] [Return to Guideline]
Rationale: Preview features
are provided in many authoring tools because the workflow of authors often includes periodically checking how content will appear
to end users in
a user
agent. Authors with disabilities need to be able to follow
the same workflow.
Note: Previews are treated differently than editing views because authors, including those with disabilities, will not be well-served if preview features diverge too much from the actual functionality of available user agents. Therefore, preview features are exempted from necessarily having to meet all of the other requirements in Part A of this guidelines document, if they meet this guideline.
Level A Success Criteria for Guideline A.3.7
- A.3.7.1 Return Mechanism: If a preview is provided, then it is possible to return from the preview using a simple action which is documented in the help system.
- A.3.7.2 Preview: If a preview is provided, then it meets at least one of the following:
- (a) Existing User Agent: the preview makes
use of an existing user
agent that is specified in the conformance
profile (e.g., opening the
content in a third-party browser, browser component, video player, etc.)
- (b) Part A.1: the preview meets
all of the Level A guidelines in Principle A.1 of these guidelines, or
- (c) UAAG: the preview conforms
to the User Agent Accessibility Guidelines [UAAG].
- Technique A.3.7.2-1 [Sufficient]: Allowing the author to locate a user agent on the platform with which to perform the preview).
- Technique A.3.7.2-2 [Sufficient]: For Web-based authoring tools that are already running in a user agent, use that same user agent to perform be the preview.
- Technique A.3.7.2-3 [Advisory]: Allowing
the author to maintain a list of user agents to be used for previewing.
- Technique A.3.7.2-4 [Advisory]: Helping the author to find a user agent to perform the preview, by auto-scanning the system for known user agents.
- Technique A.3.7.2-5 [Advisory]: Bundling user agent installer files or providing a list of download sites for appropriate user agents.
- Technique A.3.7.2-6 [Sufficient]: Ensuring that the entire preview (content view and the rest of the user interface) meets all of the requirements of Part A that might be applicable to a browser.
- Technique A.3.7.2-7 [Sufficient]: Providing conformance tests to show that the preview feature meets UAAG 1.0.
Level AA Success Criteria for Guideline A.3.7
- (No level AA success criteria for Guideline A.3.7)
Level AAA Success Criteria for Guideline A.3.7
- (No level AAA success criteria for Guideline A.3.7)
PRINCIPLE
A.4: Editing views must be understandable
Guideline A.4.1 [For the
authoring tool user interface] Help users avoid and correct mistakes.
[Techniques]
[Return to Guideline]
Rationale: People who have difficulty making fine movements may be prone to making
unintended actions.
Applicability Notes:
- Web-based authoring tools may rely on the "undo" function of the user
agent listed in the conformance
profile to perform the undo function for some editing actions
that do not involve server communication (e.g., typing in a
text area).
- It
is acceptable to collect text entry actions (e.g., typed words, a
series of backspaces) into a single reversible authoring action.
- It is acceptable for certain committing actions (e.g., "save", "publish") to reset the undo history.
Level A Success Criteria for Guideline A.4.1
- A.4.1.1 Undo Content Changes: Authoring actions are either reversible by an "undo" function or include a warning
to authors that the action is irreversible.
- A.4.1.2 Undo Setting Changes: Actions
that modify authoring tool settings are either reversible or include a warning
to the author that the setting modification is irreversible.
- Technique A.4.1.2-1 [Sufficient]: All setting changes are reversible using the preferences.
Level AA Success Criteria for Guideline A.4.1
- A.4.1.35 Redo: Authors can immediately reverse the most recent content "undo(s)" (i.e., a "redo" function).
- Technique A.4.1.3-1 [Sufficient]: Including undo actions in the queue of the five most recent actions (see Techniques for A.4.1.1).
Level AAA Success Criteria for Guideline A.4.1
- A.4.1.47 Multiple Undos: Authors can reverse
at least 5 consecutive reversible authoring actions.
- Technique A.4.1.4-1 [Sufficient]: Maintaining a queue of the five most recent actions (from most to least recent) and providing a function that can reverse the actions one-by-one starting with the most recent.
Guideline A.4.2
[For the authoring tool user interface] Document the user interface
including all accessibility features.
[Techniques]
[Return to Guideline]
Rationale: While
intuitive user interface design is valuable to many authors, some
people may still not be able to understand or be able to operate
the authoring tool user interface without proper documentation.
Applicability Notes:
Level A Success Criteria for Guideline A.4.2
- A.4.2.1 Document Accessibility Features: All features that are specifically required
to meet Part
A of these guidelines (e.g.
keyboard shortcuts, text search, etc.) are documented.
- Technique A.4.2.2-1 [Sufficient]: Documenting all aspects of the user interface covered by Part A of these guidelines (including keyboard accessibility, display configurability, etc.).
- Technique A.4.2.2-2 [Advisory]: Providing a documentation index to accessibility features.
- Technique A.4.2.2-3 [Advisory]: Providing additional forms of help, including context sensitive help.
Level AA Success Criteria for Guideline A.4.2
- (No level AA success criteria for Guideline A.4.2)
Level AAA Success Criteria for Guideline A.4.2
- A.4.2.2 Accessibility Feature Tutorials: Tutorials are provided for some of the features that are specifically required to meet Part A of these guidelines.
PART
B: Support the production of accessible content
Applicability Notes:
- Authors Availability: Any success criteria in Part B that refer to authors only apply during authoring sessions when authors are available.
- Responsibility After Authoring Sessions: Authoring tools are not responsible for accessibility problems that result from carrying out instructions made by the author during authoring sessions (e.g., the content of a third-party feed specified by the author), but they are responsible if the changes are automatically generated (e.g., the developer makes site wide changes to a CMS).
- Existing Technologies: The success criteria in Part B only apply to support for accessible authoring practices that are relevant to technologies that the authoring tool already has the ability to create or edit. For example, a markup authoring tool that adds images by simply linking to their URIs would be required to support the production of alternative text for images in the markup, but it would not be required to add image editing functionality to ensure sufficient contrast in case any images are of text.
- Authoring Systems: As per the definition of authoring tool, several software tools can be used in conjunction to meet the requirements of Part B. (e.g. a authoring tool could make use of a 3rd party software accessibility checking and repair program.
PRINCIPLE
B.1: Production of accessible content must be enabled
Guideline B.1.1 Support Web content technologies that enable the creation of content that is accessible.
[Techniques]
[Return to Guideline]
Rationale: Choosing technologies which support the possibility of accessible authoring is the first step in ensuring that the content produced is accessible.
Level A Success Criteria for Guideline B.1.1
- B.1.1.1 Tool Choice of Technologies (Level A): Any Web content technologies that is automatically selected by the authoring tool can conform to WCAG Level A.
- Technique B.1.1.1-1 [Sufficient]: A Web content technology could be considered able to conform to WCAG Level A if multiple content developers have publicly claimed WCAG Level A conformance for content developed using the technology.
Example: A content management tool is implemented using HTML templates, JavaScript and CSS for both the user interface and author generated content. One factor in the developer choosing this combination of technologies is that Web resources already exist that are implemented using these technologies and that have publicly claimed WCAG Level A conformance.
- Technique B.1.1.1-2 [Sufficient]: A Web content technology could be considered able to conform to WCAG Level A if a WCAG Techniques document exists for the technology, regardless of whether the author of the Techniques document is the W3C-WAI WCAG Working Group or a third party (e.g., the developer of a non-W3C document format).
- Technique B.1.1.1-3 [Sufficient]: Supporting W3C Recommendations, which have been publicly reviewed for accessibility. References include:
- B.1.1.2 Author Choice of Technologies (Level A): If the authoring tool provides authors with Web content technology options, technology options that can conform to WCAG Level A are listed with at least as much prominence as any other options and the tool guides the author towards the most accessible technology for the task.
- Technique B.1.1.2-1 [Sufficient]: When prompting authors to choose between technologies, begin the list with technology options that can conform to WCAG Level A (see Techniques B.1.1.1-1, B.1.1.1-2, B.1.1.1-3 for methods to determine the accessibility of the options).
- Example: An authoring tool only claims ATAG 2.0 conformance for HTML documents, but allows production of CSS style sheets, and MathML. When the author requests a new document, HTML is the first technology listed.
- Technique B.1.1.2-2 [Advisory]: Displaying a warning when the author chooses to create Web content with a technology that cannot conform to WCAG Level A or with a technology that theoretically could conform to WCAG Level A, but for which the authoring tool does not provide accessibility support.
- Example: A sample warning might read "Accessibility support is not available for documents in this format".
Level AA Success Criteria for Guideline B.1.1
- B.1.1.3 Tool Choice of Technologies (Level AA): Any Web content technologies that is automatically selected by the authoring tool can conform to WCAG Level AA.
- See Techniques for B.1.1.1 using level WCAG Level AA.
- B.1.1.4 Author Choice of Technologies (Level AA): If the authoring tool provides authors with Web content technology options, technology options that can conform to WCAG Level AA are listed with at least as much prominence as any other options and the tool guides the author towards the most accessible technology for the task.
- See Techniques for B.1.1.2 using level WCAG Level AA.
Level AAA Success Criteria for Guideline B.1.1
- B.1.1.5 Tool Choice of Technologies (Level AAA): Any Web content technologies that is automatically selected by the authoring tool can conform to WCAG Level AAA.
- See Techniques for B.1.1.1 using level WCAG Level AAA.
- B.1.1.6 Author Choice of Technologies (Level AAA): If the authoring tool provides authors with Web content technology options, technology options that can conform to WCAG Level AAA are listed with at least as much prominence as any other options and the tool guides the author towards the most accessible technology for the task.
- See Techniques for B.1.1.2 using level WCAG Level AAA.
Guideline B.1.2
Ensure that the authoring tool preserves accessibility
information.
[Techniques]
[Return to Guideline]
Rationale: Accessibility
information is critical to maintaining comparable levels of accessibility
across transformations and conversions.
Applicability Notes:
- If an authoring tool performs transformations or conversions after an authoring session ends (e.g., a batch maintenance process) only option (a) is allowed for both B.1.2.1 and B.1.2.3.
Level A Success Criteria for Guideline B.1.2
- B.1.2.1 Accessibility Information Preservation (Minimum): If the authoring tool performs transformations or conversions on existing Web content,
then for any accessibility
information that is required for that content to conform to WCAG Level A at least one of the following is true:
- (a) Preserve in Output: the accessibility
information is preserved and available for end
users in the resulting content;
- (b) Preserve Input and Notify: a copy of the accessibility
information is retained (e.g., as a "comment", by saving a backup
copy) and the authors are notified of the location and of the fact that it will not be available to end users; or
- (c) Author Queried: the authors are queried for an action for each piece of accessibility information that will not be preserved and is notified that this may result in accessibility problems.
- Technique B.1.2.1-1 [Sufficient for (a)]: Preserve accessibility
information in similar data structures.
- Example: If converting between HTML and SVG the contents of
alt
attributes can be stored in desc
attributes.
- Technique B.1.2.1-2 [Sufficient for (a)]: Where necessary, preserve accessibility
information in a dissimilar, but accessible way.
- Example: If transforming a SMIL presentation with a closed-caption text track into a video-only format, provide the option of an open-captioned video.
- Technique B.1.2.1-3 [Sufficient for (b)]: Automatically archiving a backup copy of the original content if accessibility
information will be lost and notifying the author of both the location and the fact that the new location will not be available to end users needing the information.
- Technique B.1.2.1-4 [Advisory]: When importing images with associated descriptions into a markup document,
make the descriptions available through appropriate markup.
- Technique B.1.2.1-5 [Advisory]: Avoid transforming text into images. Use style sheets for presentation
control, or use an XML application that keeps the text as text.
If this is not possible, ensure that the text is available as equivalent
text for the image.
- Technique B.1.2-1.6 [Advisory]: Notifying the author before changing the technology (including the DTD) of the content being authored.
- Technique B.1.2.1-7 [Advisory]: Allow authors to edit transformation or conversion templates to specify the way presentation conventions should be converted into structural markup.
- Technique B.1.2.1-8 [Advisory]: Ensure that changes to graphical layouts do not reduce readability when the document is rendered serially. For example, confirm the linearized reading order with the author.
- Technique B.1.2.1-9 [Advisory]: When transforming a table to a list or list of lists, ensure that table
headings are transformed into headings and that summary or caption information
is retained as rendered content.
- Technique B.1.2.1-10 [Advisory]: When converting linked elements (i.e., footnotes, endnotes, call-outs,
annotations, references, etc.) provide them as inline content or maintain
two-way linking.
- Technique B.1.2.1-11 [Advisory]: When converting from an unstructured word-processor format to markup,
ensure that headings and list items are transformed into appropriate structural
markup (appropriate level of heading or type of list, etc.).
- Technique B.1.2.1-12 [Advisory]: When developing automatic text translation functions, strive to make the resulting text as clear and simple
as possible.
Level AA Success Criteria for Guideline B.1.2
- B.1.2.2 Accessibility Information Preservation (Enhanced): If the authoring tool performs transformations or conversions during an authoring session,
then any accessibility
information in the pre-transformation/conversion content that is required for content to conform to WCAG Level AA or AAA is preserved and available for end
users in the resulting content;
- B.1.2.3 Notification Prior to Deletion: If the authoring tool automatically deletes any author-generated content for any reason, then at least one of the following is true:
- (a) Preserve Accessibility Information: the authoring tool only automatically deletes content that it can detect is not accessibility
information;
- (b) Notification Option: authors have the option to receive notification before deletion; or
- (c) No Deletion Option: authors have the option to turn off the automatic deletion.
- Technique B.1.2.2-1 [Sufficient]: Detecting and avoiding the deletion of any author-generated content.
- Technique B.1.2.2-2 [Sufficient for (a)]: Detecting and avoiding the deletion of author-generated content that is accessibility
information.
- Technique B.1.2.2-3 [Sufficient for (b)]: Providing the author the option to confirm or override removal of content either on a change-by-change basis or as a batch process.
- Technique B.1.2.2-4 [Sufficient for (c)]: When an automatic process is to be performed that cannot be completed without removing content (even including unrecognized markup), providing the author with the option of canceling the operation.
Level AAA Success Criteria for Guideline B.1.2
- (No level AAA success criteria for Guideline B.1.2)
Guideline B.1.3
Ensure that automatically generated content is accessible.
[Techniques]
[Return to Guideline]
Rationale: Authoring
tools that automatically generate content that is not accessible impose additional repair tasks on authors.
Related: If accessibility
information is required from authors during
the automatic generation process, see Guideline
B.2.1. If templates or other pre-authored content are involved, see Guideline B.2.5.
Applicability Notes:
- This guideline applies to the automated behavior specified by the authoring tool developer under the assumption that authors will respond properly to any prompts.
- The guideline does not apply when actions of the authors prevent generation of accessible content (e.g., by setting less strict preferences, ignoring prompts for accessibility information, providing faulty information, writing their own automated scripts, etc.).
Level A Success Criteria for Guideline B.1.3
- B.1.3.1 Automatic "A" Accessible: If the authoring tool automatically
generates content, then that content meets WCAG Level A at the conclusion of the automatic generation process (e.g., when inserted into the existing content).
- Technique B.1.3.1-1 [Sufficient]: Ensuring that any action that the authoring tool takes without complete author knowledge that causes content to be added or modified has the result of not introducing new WCAG Level A contraventions.
- Technique B.1.3.1-2 [Advisory]: Using prompting to elicit information from the author when necessary (see Guideline B.2.1).
Level AA Success Criteria for Guideline B.1.3
- B.1.3.2 Automatic "AA" Accessible: If the authoring tool automatically
generates content, then that content meets WCAG Level AA at the conclusion of the automatic generation process.
- See Techniques for B.1.3.1 using WCAG Level AA.
Level AAA Success Criteria for Guideline B.1.3
- B.1.3.3 Automatic "AAA" Accessible: If the authoring tool automatically
generates content, then that content meets WCAG Level AAA at the conclusion of the automatic generation process.
- See Techniques for B.1.3.1 using WCAG Level AAA.
PRINCIPLE B.2:
Authors must be supported in the production of
accessible content
Applicability Notes:
-
Principle B.2 applies to authoring tool processes that interact with human authors, and the authoring choices that author is making or the authoring choices under the control of the authoring tool. Authoring choices include choice of style sheets, templates, scripts, etc
Guideline B.2.1 Guide authors to
create accessible content.
[Techniques]
[Return to Guideline]
Rationale: By guiding authors from the outset towards the creation and maintenance of accessible content, accessibility problems are mitigated and less repair and retrofit effort is required.
Implementation Notes: Prompting in the ATAG 2.0 context is not to be interpreted as necessarily implying intrusive prompts, such as pop-up dialog boxes. Instead, ATAG 2.0 uses prompt in a wider sense, to mean any tool initiated process of eliciting author input that is triggered by author actions (e.g., adding or editing content that requires accessibility information from the author in order to prevent the introduction of accessibility problems). The reason for this is that it is crucial that that accessibility information be correct and complete. This is more likely to occur if the author has been convinced to provide the information voluntarily. Therefore, overly restrictive mechanisms are not recommended for meeting this guideline. The author experience of prompting will be very similar to that of checking (see Guideline B.2.2) for some implementations. For example, in a tool that checks continuously for accessibility problems, the markings used to highlight discovered problems can be considered to be a form of prompting.
Level A Success Criteria for Guideline B.2.1
- B.2.1.1 Guide "A" Accessible: If authors are prompted for any information as content is being added or updated (e.g., by an image modification dialog), then the tool also prominently prompts for any accessibility
information required for that content to meet WCAG Level A.
- Technique B.2.1.1-1 [Sufficient]: Ensuring that accessibility cues are added to relevant pre-existing cues (e.g., image property dialogs, table property dialogs, publication checklists, etc.).
- B.2.1.2 Warn "A" Accessible: If an authoring action or instruction will always lead to the creation
of content that cannot be made to meet WCAG Level A other than by making an alternative version, then
a warning is displayed.
- Technique B.2.1.2-1 [Sufficient]: Ensuring that all instruction text would, if followed exactly by the author, leads to content being created or modified so as to meet WCAG Level A.
- Technique B.2.1.2-2 [Sufficient]: Consistently labeling help documents or other documentation such that, if followed exactly by the author, it would lead to content being created or modified to not meet WCAG Level A.
Level AA Success Criteria for Guideline B.2.1
- B.2.1.3 Guide "AA" Accessible: If authors are prompted for any information as content is being added or updated, then the tool also prominently prompts for accessibility information required for that content to meet WCAG Level AA.
- See Techniques for B.2.1.1 using WCAG Level AA.
- B.2.1.4 Warn "AA" Accessible: If an authoring action or instruction will always lead to the creation
of content that cannot be made to meet WCAG Level AA other than by making an alternative version, then
a warning is displayed.
- See Techniques for B.2.1.2 using WCAG Level AA.
Level AAA Success Criteria for Guideline B.2.1
- B.2.1.5 Guide "AAA" Accessible: If authors are prompted for any information as content is being added or updated, then the tool also prominently prompts for accessibility information required for that content to meet WCAG Level AAA.
- See Techniques for B.2.1.1 using WCAG Level AAA.
- B.2.1.6 Warn "AAA" Accessible: If an authoring action or
instruction will always lead to the creation of content that cannot be made to meet WCAG Level AAA other than by making an alternative version, then
a warning is displayed.
- See Techniques for B.2.1.2 using WCAG Level AAA.
Guideline B.2.2 Assist authors in checking for accessibility problems.
[Techniques]
[Return to Guideline]
Rationale: Checking as an integrated function of the authoring tool helps make authors aware of accessibility problems during the authoring process, so they can be immediately addressed.
Implementation Notes: Despite prompting assistance from the tool (see Guideline B.2.1), accessibility problems may still be introduced. For example, the author may cause accessibility problems while coding by hand or by opening content with existing accessibility problems for editing. In these cases, the prompting mechanisms that operate when markup is added or edited (i.e., insertion dialogs and property windows) must be backed up by a more general checking system that can detect and alert the author to problems anywhere within the content (e.g., attribute, element, programmatic object, etc.). It is preferable that checking mechanisms be well integrated with repair mechanisms (see Guideline B.2.3), so that when the checking system detects a problem and informs the author, the tool immediately offers assistance to the author.
Applicability Notes:
- While automated
checking or more advanced implementations of semi-automated
checking may improve the authoring experience, manual checking is the minimum requirement to meet the success criteria for this guideline.
- This guideline does not apply if the authoring tool controls the authoring process to such an extent that it is not possible for authors to introduce accessibility problems.
- This guideline does not apply to content that is not available at publishing (e.g., the actual content of third-party "feeds").
Level A Success Criteria for Guideline B.2.2
- B.2.2.1 Check Accessibility (Level A): At least one individual check is associated with each WCAG Level A Success Criterion that the tool has the functionality to modify (e.g., a tool that inserts images should check for alt text; a tool that can edit captions should check for them).
- Technique B.2.2.1-1 [Sufficient]: Providing accessibility checking for the various success criteria in WCAG, identified as Level A. In some cases several checks may be required to appropriately test whether a WCAG success criterion has been met.
- Technique B.2.2.1-2 [Advisory]: Providing a listing of the checks performed in the conformance claim.
- B.2.2.2 Availability: Checking is available prior
to publishing in a manner appropriate to the workflow of the authoring tool.
- Technique B.2.2.2-1 [Sufficient]: Providing accessibility checking as an action (e.g., as a menu item, etc.) at all times.
- Technique B.2.2.2-2 [Sufficient]: Prompting the author to perform an accessibility check if the author chooses to close or publish the content
- B.2.2.2 Identify Range: The appropriate range (e.g., element, group of elements, entire file, site, Web application, etc.) for each potential accessibility
problem is identified.
- Technique B.2.2.3-1 [Sufficient]: Identifying the entire span of elements covered by a potential accessibility problem.
Example: A instruction-level authoring tool displays errors in a separate pane by the line number of the first element in the span.
Example: A instruction-level authoring tool displays errors in-line by underlining all of the markup for the affected span of elements.
Example: A WYSIWYG authoring tool displays errors in-line with the rendered content in the WYSIWYG editing view as blue outlining around or under the affected span of elements.
- Technique B.2.2.3-2 [Advisory]: Displaying manual checks in a way that balances the need for the author to make specific changes to some kinds of content (e.g., non-text objects, acronyms, table cells, etc.) while not overwhelming the author with numerous manual checks for other kinds of content that can be checked more generally (e.g., background color contrast, reading level, etc.). Excessively general checks (e.g., "does the page meet
all of the requirements?") should be avoided.
- B.2.2.4 Help Authors Decide: For any checks that require author judgment to determine whether
a potential accessibility
problem is correctly identified (i.e., manual checking and semi-automated checking), instructions are provided
to help authors to
decide.
- Technique B.2.2.4-1 [Sufficient]: Ensuring that the wording of prompts answers the following questions: "What part of the content should be examined?" and "What is present or absent in the event that the problem exists?".
- Technique B.2.2.1-3 [Advisory]: Saving author judgments for manual checks and only prompting for new judgments after substantial changes is a more user-friendly approach.
- Technique B.2.2.4-2 [Advisory]: Providing preview modes to authors view their content in ways it may be viewed by others, but that they may not have considered:
- an alternative content view (with images and other multimedia replaced by any alternative content)
- a monochrome view (to test contrast)
- a collapsible structure-only view (to test keyboard navigation)
- a text to speech view (to test the availability of text alternatives)
- no scripts view
- no frames view
- no style sheet view
Example: A WYSIWYG authoring interface includes a list of rendering options as sub-menu options of a View menu. The options include "All" (i.e., render as in a generic browser), "text-only" (i.e., non-text items replaced by textual equivalents), "no styles", "no frames", and "grayscale" (used to check for sufficient contrast). In the background, the "earth rise" image in the WYSIWYG view can be seen in grayscale. (Source: mockup by AUWG)

Level AA Success Criteria for Guideline B.2.2
- B.2.2.5 Check Accessibility (Level AA): At least one individual check is associated with each WCAG Level AA Success Criterion that the tool has the functionality to modify.
- See Techniques for B.2.2.1 using WCAG level AA.
- B.2.2.6 View Status: If the authoring tool records accessibility problems
found during checking, then a list of any accessibility problems is available to authors prior to the end of the authoring session.
- Technique B.2.2.6-1 [Sufficient]: Providing the option to view a single consolidated list of all of the accessibility problems that are detected by the checking function (see Guideline
B.2.2), organized by problem type and number of instances.
- Technique B.2.2.6-2 [Advisory]: Providing direct links to additional help and repair assistance from the list of accessibility problems.
- B.2.2.7 Save Status for Repair: If repair assistance is not provided during checking , authors have the option to save the list to facilitate interoperability between checking and repair.
- Technique B.2.2.7-1 [Sufficient]: Providing the option of storing accessibility
status information in a format that can be processed by a variety of tools (e.g., using Evaluation and Repair Language [EARL]).
- B.2.2.8 Metadata for Discovery: If the authoring tool records accessibility status, then authors have the option to associate this status with the content as metadata to facilitate resource discovery by end users.
- Technique B.2.2.8-1 [Sufficient]: Providing the option of storing accessibility
status information using the IMS AccessForAll Meta-data mechanism [ACCESSFORALL].
Level AAA Success Criteria for Guideline B.2.2
- B.2.2.9 Check Accessibility (Level AAA): At least one individual check is associated with each WCAG Level AAA Success Criterion that the tool has the functionality to modify.
- See Techniques for B.2.2.1 using WCAG level AAA.
Guideline B.2.3
Assist authors in repairing accessibility problems.
[Techniques]
[Return to Guideline]
Rationale: Repair as an integral part of the authoring process greatly enhances the utility of checking and increases the likelihood that accessibility
problems will be properly addressed.
Implementation Notes: Once a problem has been detected by the author or the tool (see Guideline B.2.2), the tool may assist the author to correct the problem. As with accessibility checking, the extent to which accessibility correction
can be automated depends on the nature of the problems. Some repairs
are easily automated, whereas others that require human judgment may be semi-automated
at best.
Applicability Notes:
- While automated
repairing or more advanced implementations of semi-automated
repairing may improve the authoring experience, only manual repairing is the minimum requirement to meet the success criteria for this guideline.
- This guideline does not apply if the authoring
tool controls the authoring process to an extent that it
is not possible for authors to introduce accessibility problems
Level A Success Criteria for Guideline B.2.3
- B.2.3.1 Repair Accessibility (Level A): For each WCAG Level A accessibility
problem that is identifiable during checking (required
in Guideline B.2.2), repair assistance is provided.
- Technique B.2.3.1-1 [Sufficient]: For each potential accessibility problem identified by the checking function (required in Guideline B.2.2), providing repair instructions that an author (with sufficient skill and knowledge to use the rest of the tool) could follow to correct the problem. At the developer's discretion, semi-automated repairs (that prompts the author for required information) or automated repairs (that are able to complete the repair without prompting the author) may be substituted.
- Technique B.2.3.1-2 [Advisory]: Providing as much automated repair as possible. Where necessary provide semi-automated repairing (see Appendix C: Levels of Repair Automation). Where neither of these options is possible, provide manual repairing.
- Technique B.2.3.1-3 [Advisory]: When appropriate, reusing affected elements' property editing mechanisms. This has the advantage that the author is already somewhat familiar with the interface. However, this practice does not necessarily focus the author's attention on the dialog control(s) that are relevant to the required correction.
- Technique B.2.3.1-4 [Advisory]: Implementing a special-purpose correcting interface, analogous to a spelling or grammar checker, that includes only the input field(s) for the information currently required. Additional information and tips that the author may require in order to properly provide the requested information can be added.
- Example: A special-purpose correction interface supports the author's repair task by providing (1) a short description of the problem (here: "Missing Alternate Text Label for an Image"), (2) a preview (here: the "earthrise" image that is missing a label), (3) tips for performing the repair (here: "Alternate text should be 10 words or less and should include any text in the image."; "Image buttons should have alternate text that describes the button function."; and "Image bullets should have "bullet" as alternate text."), and (4) an offered semi-automated repair in an editable drop-down box (here: "An earth rise as seen from the moon"). (Source: mockup by AUWG)

Technique B.2.3.1-5 [Advisory]: Presenting accessibility problems and repair options in a sequential manner analogous to a typical spelling or grammar checking "wizard". Because of the wider range of problems an accessibility checker needs to handle (i.e., missing text, missing structural information, improper use of color, etc.), the interface template will likely need to be especially flexible.
- Example: A sequential accessibility checker. The special-purpose correction interface from the previous example is supplemented by a progress indicator ("5 of 25") and navigation buttons to move backwards ("back") and forwards ("skip") through the list of repair tasks. Buttons to "repair", get "help" and "cancel" are also provided. (Source: mockup by AUWG)

Technique B.2.3.1-6 [Advisory]: Where an authoring tool is able to detect site-wide errors, allowing the author to make site-wide corrections. This should not be used for equivalent alternatives when the function is not known with certainty (see Guideline B.2.4).
- Technique B.2.3.1-7 [Advisory]: Providing a mechanism for authors to navigate sequentially among uncorrected accessibility errors. This allows the author to quickly scan accessibility problems in context.
- Technique B.2.3.1-8 [Advisory]: Consulting the Techniques for Accessibility Evaluation and Repair Tools [AERT] Public Working Draft document for evaluation and repair algorithms.
Level AA Success Criteria for Guideline B.2.3
- B.2.3.2 Repair Accessibility (AA): For each WCAG Level AA accessibility
problem that is identifiable during checking, repair assistance is provided.
- See Techniques for B.2.3.1 using WCAG Level AA.
Level AAA Success Criteria for Guideline B.2.3
- B.2.3.3 Repair Accessibility (AAA): For each WCAG Level AAA accessibility
problem that is identifiable during checking, repair assistance is provided.
- See Techniques for B.2.3.1 using WCAG Level AAA.
Guideline
B.2.4 Assist authors to manage, edit, and reuse equivalent alternatives for non-text objects.
[Techniques]
[Return to Guideline]
Rationale: Improperly
generated equivalent alternatives can create accessibility problems
and interfere with accessibility checking.
@@http://lists.w3.org/Archives/Public/w3c-wai-au/2008JulSep/0083.html@@
Level A Success Criteria for Guideline B.2.4
- B.2.4.1 Accept, Modify, Reject: Authors have
the opportunity to accept, modify, or reject any authoring tool-supplied equivalent
alternative, prior to insertion.
- Technique B.2.4.1-1 [Sufficient]: Providing a mechanism for the author to accept, modify, or reject any equivalent alternatives that the authoring tool supplies during the insertion process.
- Technique B.2.4.1-2 [Advisory]: Allowing the author to accept patterns of future uses of an equivalent alternative under certain conditions (e.g., whenever the same object is marked with the same semantic role).
- Technique B.2.4.1-3 [Advisory]: If the author changes the alternative equivalent for a non-text object,
asking the author whether all instances of the object with the same
known function should also be updated.
- B.2.4.2 Edit Existing: If the authoring tool is capable of adding equivalent
alternatives for a type of non-text
objects then authors can edit the equivalent
alternatives.
- Technique B.2.4.2-1 [Sufficient]: Proving editing mechanisms for all applicable equivalent alternative types in a properties editor.
- Technique B.2.4.2-2 [Advisory]: Providing an editing capability for any equivalent alternatives managed by the tool.
- Example: A text equivalents registry viewer allows the author to query and edit the various text equivalents stored in the registry. For maximum flexibility, the design takes into account multiple non-text objects of the same name, multiple types of text equivalents for each non-text object, and multiple versions of each text equivalent type. In the viewer shown here, the author has selected "image" as the "media type" and then selected pic123.gif as the "object" to edit. This has brought up a rendering of the "earthrise" image. The viewer also shows that the object has three text labels. The author has selected one ("An earth rise as seen from the moon") in order to edit it. In addition some authoring tips are included ("Alternate text should be 10 words or less and should include any text in the image", "Image buttons should have alternate text that describes the button function.", and "Image bullets should have "bullet" as alternate text."(Source: mockup by AUWG)

Level AA Success Criteria for Guideline B.2.4
- B.2.4.3 Acceptable Sources: Authoring tools only supply equivalent alternatives from the following sources:
- (a) Author-Entered: equivalent
alternatives previously entered by authors for
the same non-text
object (e.g., by the same author, or another author on
a collaborative system),
- (b) From Object Database: equivalent
alternatives stored with the non-text
object in an object database (or equivalent),
- (c) Null when Appropriate: null equivalent
alternatives for non-text
objects that the authoring tool recognizes are only used for pure decoration, or
- (d) Audio, Video, or CART Analysis: automatic video or audio analysis (e.g., speech recognition).
- Technique B.2.4.3-1 [Sufficient]: Placing, within the appropriate field of the non-text object editing dialog box, a text alternative (or multiple alternatives if a drop-down is used) that was obtained from one of the acceptable sources.
Level AAA Success Criteria for Guideline B.2.4
- B.2.4.4 Save for Reuse: Authors can store, for future reuse, both of the following author-assigned equivalent
alternatives (as applicable):
- Technique B.2.4.4-1 [Sufficient]: Maintaining a registry
that associates object identity information with the text and URIs of alternative information (e.g., making use of the Resource Description Framework (RDF) [RDF10]). Whenever an object
is used and an equivalent alternative is collected, via prompting (see Guideline B.2.1)
or repair (see Guideline B.2.3) the object's identifying information and the alternative information is added to the registry. The stored alternative
information is presented back to the author as default text in the appropriate field, whenever
the associated object is inserted.
- Technique B.2.4.4-2 [Advisory]: Allowing several different versions of alternative information to be associated with a single object.
- Technique B.2.4.4-3 [Advisory]: Ensuring that the stored alternative information required
for pre-authored content (see Guideline B.1.5) is made interoperable with the management
system to allow the alternative equivalents to be retrieved whenever the
pre-authored content is inserted.
- Technique B.2.4.4-4 [Advisory]: Using the stored alternatives to support keyword searches of the object database (to simplify the task of
finding relevant images, sound files, etc.).
- Technique B.2.4.4-5 [Advisory]: Allowing the equivalents alternatives registry to be made shareable between authors in collaborative systems.
Note: Equivalent
alternatives should not be automatically generated from unreliable sources (e.g., file
names should not be used as text alternatives).
Guideline B.2.5 Assist authors with accessible templates and other pre-authored content.
[Techniques]
[Return to Guideline]
Rationale: Templates and other pre-authored
content (e.g., clip art, synchronized media, widgets, etc.) that are not accessible impose additional repair tasks on authors.
Applicability Notes:
- Templates may be complicated to check for accessibility due to their inherent incompleteness. The accessibility status of templates is instead measured by the accessibility of content (in the final technology) created through their proper use.
Level A Success Criteria for Guideline B.2.5
- B.2.5.1 Templates "A" Accessible: If the authoring tool automatically selects templates or pre-authored content, then the selection meets WCAG Level A when used.
- B.2.5.2 Provide Accessible Templates: If the authoring tool provides templates, then there are accessible template options for a range of template uses.
- Technique B.2.5.2-1
[Sufficient]: Ensuring all templates meet at least WCAG Level
A when used.
- Technique B.2.5.2-2 [Sufficient]: Ensuring that a reasonably representative set of templates is accessible.
- Example: A tool provides several template choices for home pages, guest books and on-line albums. For each type of functionality, the basic option is accessible.
- B.2.5.3 Template Selection Mechanism: If authors are provided with a template selection
mechanism, then both of the following are true:
- (a) Indicate: the selection
mechanism indicates the accessibility status of templates (if known),
- (b) Prominence: any accessible template options have prominence that is comparable with that of other options in
the selection mechanism.
- Technique B.2.5.3-1 [Sufficient]: Listing the available templates and providing accessibility status as a sortable field.
- Technique B.2.5.3-2 [Advisory]: Storing the accessibility status within the template.
- Technique B.2.5.3-3 [Advisory]: Storing the accessibility status external to the template within a template management system.
- Technique B.2.5.3-4 [Advisory]: If suitable, evaluating templates for accessibility at run-time.
Level AA Success Criteria for Guideline B.2.5
- B.2.5.4 Templates "AA" Accessible: If the authoring tool automatically selects templates or pre-authored content, then the selection meets WCAG Level AA when used.
- See Techniques for B.2.5.1 using WCAG Level AA.
- B.2.5.5 New Templates: If authors can use the authoring tool to create new templates for use by a template selection
mechanism, they have the option to record the accessibility status of the new templates.
- See Techniques or B.2.5.3 for ways in which the status might be stored.
- Technique B.2.5.4-1 [Sufficient]: Providing a status saving option as part of the accessibility checking feature (see Guideline B.2.2).
- Technique B.2.5.4-2 [Advisory]: Making accessibility checks mandatory before saving templates.
- Technique B.2.5.4-3 [Advisory]: Advising the author that templates should be held to a high accessibility standard, since they will be repeatedly reused.
- B.2.5.6 Templates in Repository: If the authoring tool provides a
repository of templates, then each of the templates has a recorded accessibility status.
- See Techniques for B.2.5.3 for ways in which the status might be stored.
- B.2.5.7 Pre-Authored Content Selection Mechanism: If authors are provided with a selection mechanism for pre-authored content other than templates (e.g., clip art gallery, widget repository, design themes), then both of the following are true:
- (a) Indicate: the selection
mechanism indicates the accessibility status of the pre-authored content (if known),
- (b) Prominence: any accessible options have prominence that is comparable with that of other options in
the selection mechanism.
- See Techniques for B.2.5.3, reading "pre-authored content" in place of "templates".
- Technique B.2.5.7-1 [Advisory]: Ensuring that equivalent alternatives provided for pre-authored content are compatible with features to manage,
edit, and reuse equivalent alternatives (see Guideline B.2.4).
- Example: An authoring tool is shipped with a clip art collection. Each image in the collection has a short text label and long text description and the associations have all been pre-loaded into the equivalent alternative management system so that whenever the author inserts an image its equivalent alternatives are automatically retrieved.
- B.2.5.8 Pre-Authored Content in Repository: If the authoring tool provides a repository of pre-authored content, then
each of the content objects has a recorded accessibility status.
- See Techniques for B.2.5.3 for ways in which the status might be stored.
Level AAA Success Criteria for Guideline B.2.5
- B.2.5.9 Templates "AAA" Accessible: If the authoring tool automatically select templates or pre-authored content, then the selection meets WCAG Level AAA when used.
- See Techniques for B.2.5.1 using WCAG Level AAA.
Appendix A: Prompting for Various Types of Accessibility Information:
This list is representative, but not necessarily complete.
1. Prompting and assisting for short text labels (e.g., alternate text, titles,
short text metadata fields, rubies for ideograms):
- (a) Prompts for short text strings may be given relatively little
screen real estate because they are usually intended to elicit entries
of ten words or less. (see Example
A-1a)
- (b) Provide a rendered view of the object being labeled, while the author is composing the label. (see Example
A-1a)
- (c) Provide the option of automatically retrieving previously used labels. (see Example
A-1a, Guideline B.2.4)
- (d) Detect objects
serving special functions and offer standard labels for them (e.g., "decorative", "button",
"spacer", "horizontal rule", etc.).
- (e) If the tool offers the author previously used labels or special
function label text (see (c)) then editable text entry boxes with drop-down lists should be used to allow the author the option of entering different text (see Example
A-1a).
- (f) In code-based tools, prompt the author with short text labels that are already marked up appropriately (see
Example A-1b).
Example A-1a: A dialog box offers short text labels for reuse. It shows an "Insert Image" dialog box a thumbnail image of the "earthrise" graphic along with entry fields for "src", "alt", "longdesc", "height" and "width". The "alt" entry field is drop-down list that is shown with
several short labels for the same image. The first is a visual description in English ("An earth rise as seen from the moon"), the second is a visual description in French ("Une vue do la terre de la lune") and the third is an English functional label used if the image serves as a link ("Go to pictures of the earth").
(Source: mockup by AUWG)

Example A-1b: A instruction-level authoring interface offers short text labels for reuse. It shows the author midway through adding markup for an image. After adding the src
attribute value the author has pressed the spacebar, causing the tool to prompt them with the alt
attribute along with several attribute values, including a visual description in English (alt="An earth rise as seen from the moon"), a visual description in French (alt="Une vue de la terre de la lune") and an English functional label used if the image serves as a link (alt="Go to pictures of the earth"). (Source: mockup by AUWG)

2. Prompting and assisting for multiple text labels (e.g., image map area labels):
- (a) Prompts for multiple text labels may be similar to those for short
text labels, with allowance made for rapidly adding several labels (e.g. a spreadsheet type of control). (see Example
A-2)
- (b) Provide a rendered view of the various objects being labeled, while the author is composing the labels. (see Example
A-2)
- (c) If the objects have URIs (e.g. image map areas), display these as a hint for the labels. (see Example
A-2)
- (d) If the objects have URIs (e.g. image map areas), offer to automatically generate a set of plain text links from the
labels that the user completes. (see Example
A-2)
Example A-2: An authoring interface that prompts for image
map area text labels. It is comprised of a list with two columns.
In the right-hand column is the URL for each image map area. This can
be used as a hint by the author as they fill in the text labels (left-hand
column). A checkbox at the bottom provides the option of using the text
labels to create a set of text links below the image map. (Source: mockup
by AUWG)

(3):
Prompting and assisting for long text descriptions (e.g., longdesc text,
table summaries, site information, long text metadata fields):
- (a) Begin by prompting the author as to whether the inserted object
is adequately described with an existing short text label. Providing a
view of the page with rendering of the object turned off may help the author decide. (see
Example A-3)
- (b) If the short text label is determined to be inadequate, prompt the author for the
location of a pre-existing description. (see
Example A-3)
- (c) If the author needs to create a description, provide a special writing
utility that includes a rendered view of the object and description writing
advice.
- (d) Implement automated routines that detect and ignore some objects
that do not require long text descriptions (e.g., bullets, spacers, horizontal
rules).
Example A-3: An authoring interface that prompts for long text descriptions. A "description required" checkbox controls whether the rest of the interface is available. If a description is required, the author then has the choice of opening an existing description file or writing (and saving) a new one. If they choose to use an existing file, there is a text entry area for the name along with a button to browse the file system. If they choose to compose a new description, there is a text entry area for the description followed by a text field for the file name and a button to save it to that location. In the situation shown, the author chooses to use an existing description of "earthrise" so the file name containing the description is shown. In addition, the text of the description from the file is loaded into the compose area ("The earth hangs in the pitch black sky above the gray horizon of the moon. The dazzling blue sphere is covered with creamy white streamers of cloud.") in case the author would like to use this text as a basis for a new description. (Source: mockup by AUWG)

(4):
Prompting and assisting for form control labels:
- (a) Prompts for form controls may be similar to those for short text labels and/or multiple text labels.
- (b) For formats in which form control labels are external to the actual form control elements (e.g. HTML), allow the author to either directly add a form control label or identify pre-existing text
strings that are already serving implicitly as labels.
- (c) It may be helpful to render the form controls with indicators of label associations or missing labels.
- (d) It may be helpful to redisplay the controls in spreadsheet form to assist the author in determining author which controls are lacking labels. (see
Example A-4)
Example A-4: A form properties list
with five columns that allows the author to simultaneously decide the following for each field: the tab
order, form name, field label, control type, and accesskey. In this example, two form
field labels are missing, causing prompts (yellow highlighting of the cells and red icons) to be displayed. "Move up" and "move down" buttons are provided. (Source: mockup
by AUWG)

(5):
Prompting and assisting for form field place-holders:
- (a) Prompts for form field place-holders may be similar to those for short text labels, multiple text labels, and/or form control labels.
- (b) Provide authors with the option of directly selecting nearby text
strings that are serving implicitly as labels and use the text as place-holders.
(6): Prompting
and assisting for TAB order sequence:
- (a) At the very least, provide a field for entering the TAB order number for any element that can appear in the TAB order.
- (b) Manage the TAB order to prevent duplicate TAB indices and to reduce the need for manual renumbering.
- (c) Provide contextual information to supplement the basic TAB order numbers, such as the label or name of controls.
- (d) Provide the author with a point-and-click numbering tool that they can use to select
controls to quickly create a TAB order.
- (e) Provide a list of links and controls to check the TAB order.
- (f) Where there are only a few links that change in each page of a collection, ask the author to confirm whether these links receive focus first. If so, then the tool can appropriately update the tabindex order.
(7):
Prompting and assisting for navigational shortcuts (e.g., keyboard shortcuts,
skip links, voice commands, etc.):
- (a) Prompt authors to add skip-over navigation links for sets of common
navigation links.
- (b) Prompt authors with a list of links that are candidates for accesskeys,
because they are common to a number of pages in a site.
- (c) Manage accesskey lists to ensure consistency across sites and to
prevent conflicts within pages. (see Example
A-7)
Example A-7: A instruction-level authoring interface
that suggests access key values. The following markup can be seen: "<body><p>Here is one of the most famous photographs taken from the <a href="moon.html" > moon.</a></p><It was taken with a special <a href=camera.html" accesskey="c">camera.</p>"
. A pop-up menu, centered on the word "moon" suggest accesskey="moon", because "moon" begins with "m", followed by the rest of the alphabet in order. Accesskey="c" is missing, however, since it is already
used as an accesskey later in the document (for the "camera" link).
(Source: mockup by AUWG)

(8):
Prompting and assisting for contrasting colors:
- (a) Assemble color palettes with insufficiently contrasting colors excluded
or identified. (see Example A-8)
- (b) To help the author test the contrast, provide gray scale and black and white views or suggest that the author
activate the operating system high contrast mode.
- (c) Emphasize "Web-safe" colors.
Example A-8: A dialog box for choosing sufficiently contrasting color combinations. The dialog box has two tabs: one for text color and one for background color. A "hide low contrast choices" checkbox has been selected, so the palette of colors has been pre-screened
so that sufficient contrast between the text and the current background
color is assured. All other colors have been grayed out. (Source:
mockup by AUWG)

(9):
Prompting and assisting for alternative resources for multimedia (transcripts,
captions, video transcripts, audio descriptions, signed translations, still
images, etc.):
- (a) Prompt the author for the location of pre-existing alternative
resources for multimedia.
- (b) Provide a single utility where the various alternative resources can be managed at the same time.
- (c) Although producing alternative resource for multimedia can be a
complex process for long media files, production suites do exist or authoring
tools can include simple utilities, with built-in media players, for producing
simple alternative resources.
- (d) The tool should make an attempt to access existing alternative resources for multimedia,
which may be incorporated into media (e.g., as text or secondary audio tracks) or be located separately but nearby within content.
(10):
Prompting and assisting for metadata:
- (a) For metadata information fields requiring information similar to
that discussed in the other sections of this technique, see the relevant
section. For example: short text labels, long text descriptions, and alternative resources for multimedia.
- (b) When prompting for terms in a controlled vocabulary, allow the author
to choose from lists to prevent spelling errors.
- (c) Provide the option of automating the insertion of information that
easily stored and reused (e.g., author name, author organization, date,
etc.).
- (d) Automate metadata discovery where possible.
- (e) Provide the option of storing licensing conditions within metadata
(e.g., by Creative Commons licenses, GPL, BSD, etc.)
- (f) Consider characterizing accessibility of content using IMS AccessForAll
Meta-data Specification [ACCESSFORALL] to facilitate personalized content delivery.
(11):
Prompting and assisting for document structure:
- (a) Alert the author to the occurrence of unstructured content in a way
that is appropriate to the workflow of the tool.
- (b) Provide the author with options for creating new content that is structured,
such as:
- templates (with pre-defined structure),
- wizards (that introduce structure to content through a series of
system-generated queries), or
- real time validators (that may be set by the author to prevent the
creation of improperly structured content)
- (c) Provide the author with options for imposing structure on existing unstructured
content.
- For tools that support explicit structural mechanisms offer authors
the opportunity to use those mechanisms. For example, for DTD or schema
based structures, provide validation in accordance to the applicable
DTD or schema.
- For tools that do not support explicit structural mechanisms, offer
authors the option of deriving structure from format styles. For example,
provide authors a mechanism to map presentation markup that follows
formatting conventions into structural elements. For example, patterns
of text formatting may be interpreted as headings (see
Example A-11) and multiple lines of text beginning items
with certain typographical symbols, such as "*" or "-",
may be interpreted as list items.
- (d) Provide structure-based editing features, such as:
- hide/show content blocks according to structure,
- shift content blocks up, down, and sideways through the document
structure, or
- hierarchical representation or network diagram view of the document
structure, as appropriate.
- (e) Provide fully automated checking (validation)
for structure.
- (f) Provide fully automated or semi-automated repair for structure.
- (g) It is not necessary to prohibit editing in an unstructured mode. However,
the tool should alert authors to the fact that they are working in an
unstructured mode.
Example
A-11: A WYSIWYG authoring tool that detects opportunities
for enhancing structure and alerts the author. On the left side is the WYSIWYG editing view with the title of the page ("Mars") displayed with a blue underline. The author has brought up a pop-up menu for the title and sees the following options: "Repair: Mark as heading (a sub-menu displays the different levels of header (i.e., h1, h2, etc.)) for the author to choose", "Skip", "Ignore", "Check Accessibility...", and "Help...". On the right, an element inspector makes clear that the title is currently marked up as a paragraph. (Source: mockup by AUWG)

(12):
Prompting and assisting for tabular structure:
- (a) Prompt the author to identify tables as used for layout or data
or implement automated detection mechanisms.
- (b) Differentiate utilities for table structure from utilities for document
layout - use this when tables are identified as being for layout.
- (c) Prompt the author to provide header information. (see
Example A-12)
- (d) Prompt the author to group and split columns, rows, or blocks of
cells that are related.
- (e) Provide the author with a linearized view of tables (as tablin does).
Example A-12: A WYSIWYG authoring tool that
prompts the author to decide whether the top row of a table contains the table
header cells. The top row of the rendered table is outlined in blue to indicate an accessibility problem. The author has brought up a pop-up menu for one of the cells in the top row and sees the following options: "Repair: Set as header row", "Skip", "Ignore", "Check Accessibility...", and "Help...". (Source: mockup by AUWG)

(13):
Prompting and assisting for style sheets:
- (a) Use style sheets, according to specification, as the default mechanism
for presentation formatting and layout.
- (b) If content is created with a style sheet format, along with a content
format, the use of that style format must also meet the requirements of
WCAG.
- (c) Conceal the technical details of style sheet usage to a similar
degree as for usage of other markup formats supported by the tool.
- (d) Assist the author by detecting structural markup (e.g., header tags, etc.) that has been misused
to achieve presentation formatting and, with author permission, transforming
it to use style sheets. (see Example A-13)
- (e) Prompt the author to create style classes and rules within and across
document, rather than using more limited in-line styling.
- (f) Assist the author by recognizing patterns in style sheet use and
converting them into style classes and rules.
- (g) Provide the option of editing text content independently of style
sheet layout and presentation formatting. (see
Example A-13)
- (h) Assist the author with the issue of style sheet browser compatibility
by guiding them towards standard practices and detecting the existence
of non-standard practices.
- (i) Assist the author by providing a style sheet validation function.
- (j) Maintain a registry of styles for ease of re-use.
- (k) For prompting and assisting with specific types of information required
by style sheets, see the other sections in this technique. For example:
font/background colors (see (8)) and document structure (see (12)).
- (l) Consult the following references: Accessibility Features of CSS [CSS2-ACCESS] and XML languages [XAG].
Example A-13: A WYSIWYG authoring tool that indicates to the author that
a heading has been misused to indicate emphasis. In the WYSIWYG editing view, some text ("VERY HOT") is rendered large and bold because it has been improperly marked as a heading and it is therefore marked with a blue underline as an accessibility problem. The author has brought up a pop-up menu for the text and sees the following options: "Repair: Mark with style (a sub-menu displays the different styles available: .bodytext, .quotetext, .hot_emphasis, .cold_emphasis)", "Skip", "Ignore", "Check Accessibility...", and "Help...". (Source: mockup by AUWG).
(14): Prompting
and assisting for clearly written text:
- (a) Prompt the author to specify a default language of a document.
- (b) Provide a thesaurus function.
- (c) Provide a dictionary lookup system that can recognize changes of
language, terms outside a controlled vocabulary as well as known abbreviation
or acronym expansions.
- (d) Provide an automated reading level status. (see
Example A-14a)
- (e) Prompt the author for expansions of unknown acronyms, recognizable
in some languages as collections of uppercase letters. (see Example
A-14b)
Example A-14a: A instruction-level authoring
interface that indicates the reading level of a page and whether it exceeds
a limit determined by the author's preference settings. The code view includes the following markup: <body><h1>Mars</h1><p>Mars is the fourth planet in the solar system, orbiting at a distance of 1.5 AU, with a period of 687 days.</p></body></html>
. Then in a status bar below the text entry area, is a reading level display: "Reading Level: 11.2 (target<8)". The 11.2 is highlighted with a yellow background and bold text to indicate that the target is exceeded. (Source: mockup
by AUWG)
Example
A-14b: An authoring interface
that prompts the author to enter an acronym expansion. The rendered text reads: "The 'habitable zone' around a star is the region of that star’s solar system in which liquid water is possible. The continuous habitable zone (CHZ) is the region of the solar system which has remained in the zone, even during changes in the star’s radiation pattern." The acronym "CHZ" is identified with a blue underline as an accessibility problem. The author has brought up a pop-up menu for the acronym and sees the following options: "Repair: Enter acronym expansion…", "Check Accessibility...", and "Help...". (Source: mockup by AUWG)
(15): Prompting
and assisting for device independent handlers:
- (a) During code development, prompt the author to include device-independent
means of activation.
- (b) Prompt authors to use device-independent events (e.g., DOM 2
onactivate
[DOM]) instead of device-specific events (e.g., onclick
),
or route multiple events (onclick
and onkeypress
)
through the same functions.
- (c) Prompt authors to add a DOM
onfocus
event to elements
that are targeted with the onmouseover
event.
- (d) Prompt authors about using events for which no common device-independent
analogue exists (e.g.,
ondblclick
) and avoid these events
as default options.
(16):
Prompting and assisting for non-text supplements to text:
- (a) Prompt the author to provide icons for buttons, illustrations for
text, graphs for numeric comparisons, etc. (see
Example A-16)
- (b) Where subject metadata is available, look up appropriate illustrations.
- (c) If the author has identified content as instructions then provide
templates or automated utilities for extracting flow charts, etc.
Example A-16: An authoring
interface for prompting the author about whether a paragraph that contains
many numbers might be made more clear with the addition of a chart or
graph. On the left side of the interface is the rendered text: " Planet Orbits: The inner planets orbit the sun relatively quickly with Mercury orbiting the sun in 88 days, Venus in 224 days, Earth in 365 days, and Mars in 687 days. Compare this to Jupiter’s, 4332 day orbit." This text is marked with a yellow exclamation mark icon. On the right side is the following explanation of the error icon: "This paragraph contains 5 numbers. Would readers benefit if a chart or graph of this information was added?". "Yes" and "no" buttons are provided. (Source: mockup by AUWG)

(17): Prompting and assisting the author to make use of up-to-date technologies:
- (a) Default to the most up-to-date technologies available whenever the author
has not specified a technology.
- (b) Give up-to-date technologies a higher prominence during
technology selection.
- (c) Provide tools that convert content in older technologies into more up
to date ones.
- (d) Fully or partially automate some of the more complex aspects of
more up to date technologies, including document structure (see (11))
and use of style sheets (see (13)).
Appendix B: Levels of Checking Automation
This list is representative, but not necessarily complete.
(a) Automated Checking:
In automated checking, the tool is able to check for accessibility problems
automatically, with no human intervention required. This type of check is
usually appropriate for checks of a syntactic nature, such as the use of
deprecated elements or a missing attribute, in which the meaning of text
or images does not play a role.
Example B-1: A summary interface for a code-based
authoring tool that displays the results of an automated check. The display is a tree-view where the leftmost nodes are the names of errors ("Image missing alternate text" and "Text boxes missing labels) with number of errors appended (e.g., "[6]") and the sub-items are the problem instances with line numbers appended (e.g., "(Line:45)"). (Source:
mockup by AUWG)

Example B-2: A WYSIWYG interface that displays the
results of an automated check in a WYSIWYG authoring view using blue
highlighting around or under rendered elements (in this case, the "earthrise" image and some "blinking text"), identifying accessibility
problems for the author to correct. (Source: mockup by AUWG)

Example B-3: An authoring interface of an
automated check in a instruction-level authoring view. The text is: "<body><p>Image:</p><img href="pic123.gif"/><hr/><blink>Blinking text</blink></body></html>
".In this view, the text
of elements with accessibility problems (img
and blink
) is shown in a blue font, instead
of the default black font. (Source: mockup by AUWG)

(b) Semi-Automated Checking:
In semi-automated checking, the tool is able to identify potential problems,
but still requires human judgment by the author to make a final decision
on whether an actual problem exists. Semi-automated checks are usually most
appropriate for problems that are semantic in nature, such as descriptions
of non-text objects, as opposed to purely syntactic problems, such as missing
attributes, that lend themselves more readily to full automation.
Example B-4: A dialog box that appears once
the tool has detected an image without a description attribute. However,
since not all images require description, the author is prompted to make
the final decision ("Does this image require descriptive text?"). The author can confirm the at this is indeed an accessibility
problem by choosing and move on to the repair stage by choosing "Yes" or press "No" to mark the potential problem, as not a problem at all. Additional help is available in the form of a tip: "An image requires descriptive text when the information it contains cannot be conveyed in 10 words or less using an alternate text label." (Source:
mockup by AUWG)

(c) Manual Checking:
In manual checking, the tool provides the author with instructions for detecting
a problem, but does not automate the task of detecting the problem in any
meaningful way. As a result, the author must decide on their own whether
or not a problem exists. Manual checks are discouraged because they are
prone to human error, especially when the type of problem in question may
be easily detected by a more automated utility, such as an element missing
a particular attribute.
Example B-5: A dialog box that reminds the
author to check if there are any words in other languages in the document with the message: "Does this document contain any words or phrases in a different language than the main content?".
The author can move on to the repair stage by pressing "Yes" or press "No" to mark the potential problem, as not a problem at all.
(Source: mockup by AUWG)

Appendix C: Levels of Repair Automation
This list is representative, but not necessarily complete.
(a) Repair Instructions:
In manual repairing, the tool provides the author with instructions for making the necessary correction, but does not automate the task in any substantial way. For example, the tool may move the cursor to start of the problem, but since this is not a substantial automation, the repair would still be considered "manual". Manual correction tools leave it up to the author to follow the instructions and make the repair by themselves. This is the most time consuming option for authors and allows the most opportunity for human error.
Example C-1: Repair instructions in a code level editing view. In this case, the following markup is being edited: <body><p>Image:</p><img href="pic123.gif"/><hr/><blink>Blinking text</blink></body></html>
. Since the problems have already been detected in the checking step and the selected offending elements in a code view (<img href="pic123.gif"/>
and <blink>Blinking text</blink>
) have been highlighted in blue text. When the author puts focus on the highlighted text, a short repair instruction ("Repair: Add 'alt' attribute") appears in a status bar with a button than will open a longer explanation in the help system. (Source: mockup by AUWG)

(b) Semi-Automated:
In semi-automated repairing, the tool can provide some automated assistance to the author in performing corrections, but the author's input is still required before the repair can be complete. For example, the tool may prompt the author for a plain text string, but then be capable of handling all of the markup required to add the text string to the content. In other cases, the tool may be able to narrow the choice of repair options, but still rely on the author to make the final selection. This type of repair is usually appropriate for corrections of a semantic nature.
Example C-2: A semi-automated repair in a WYSIWYG editing view. The author has right-clicked on an image of the "earthrise" that has been highlighted with a blue outline by the automated checker system. This has brought up a pop up menu with the following choices: "Repair: Set Alt -Text: 'An earth rise as seen from the moon'",
"Enter different alt-text…", "
Skip", "Ignore", "Check Accessibility...", "Help...". The author must decide whether the label text that the tool suggests is appropriate. Whichever option the author chooses, the tool will handle the details of updating the content. (Source: mockup by AUWG)

(c) Automated:
In automated repairing, the tool is able to make repairs automatically, with
no author input required. For example, a tool may be capable of automatically
adding a document type to the header of a file that lacks this information.
In these cases, very little, if any, author notification
is required. This type of repair is usually appropriate for corrections
of a syntactic or repetitive nature.
Example C-3: An announcement
that an automated repair has been completed ("All instances of <blink> have been replaced with CSS styling according to your preferences."). The author selects an "ok" to proceed. An "undo" button
is provided in case the author wishes to reverse the operation. In some
cases, automated repairs might be completed with no
author notification at all. (Source: mockup by AUWG)

Appendix D: Author Interruption Timing Options
This list is representative, but not necessarily complete.
(a) Negotiated Interruption: A negotiated interruption is caused by interface mechanisms (e.g., icons or highlighting of the element, audio feedback) that alert the author to a problem, but remain flexible enough to allow the author to decide whether to take immediate action or address the issue at a later time. Since negotiated interruptions are less intrusive than immediate or scheduled interruptions, they can often be better integrated into the design workflow and have the added benefit of informing the author about the distribution of problems within the document. Although some authors may choose to ignore the alerts completely, it is not recommended that authors be forced to fix problems as they occur. Instead, it is recommended that negotiated interruption be supplemented by scheduled interruptions at major editing events (e.g., when publishing), when the tool should alert the author to the outstanding accessibility problems.
Example D-1: A WYSIWYG editing view makes the author of problems detected automatically by means of a blue line under text or around rendered objects with accessibility problems. Here, red lines are also visible, highlighting spelling errors in the text. The author can decide to address the problems at a later time. (Source: mockup by AUWG)

(b) Scheduled Interruption: A scheduled interruption is one in which the author has set the tool to alert them of accessibility issues on a configurable schedule. One option for the schedule might be to have prompts associated with the interface mechanisms for significant authoring events, such as opening, saving, closing, committing, or publishing files. At the significant authoring event, the author would be informed of the problem, while at the same time they would not be prevented from saving, publishing, printing, etc. A potential downside of postponing corrective actions is that by the time the prompt is displayed, the author may not have sufficient time or inclination to make the required changes, especially if they are extensive.
Example D-2: A "Publish" dialog box allows the author to publish multiple files at once, however in the case shown here, two of the files have uncorrected accessibility errors which causes them not to meet a "standard of publishing" the author has set for themselves in the options. As a result the files are selected, a message is displayed ("The selected files do not meet your specified standard for publishing.") and the "publishing" button is grayed out. This standard is referred to generally since it is assumed that it might include spelling and grammar standards as well as accessibility issues. (Source: mockup by AUWG)

(c) Immediate Interruption: An immediate interruption is the most intrusive timing option because the attention of the author is actively diverted from the current editing task by the notification of some issue. This might be achieved, for instance, by an alert dialog. This type of alert presents multiple usability problems and should be used sparingly because it interferes with the normal design workflow. Intrusive warnings are probably only appropriate when the window of opportunity for correcting a serious accessibility problem is about to close, such as when an author decides to publish the content in question. In general, negotiated and scheduled interruptions are preferred.
Example D-3: A modal dialog box contains the message: "This image is missing alternate text". The author must press the "OK" button to continue. (Source: mockup by AUWG)

Appendix E: Real-Time Content Production
Dealing flexibly with real-time content production. When authoring tools produce content in real time, it is usually no longer possible to delay addressing accessibility problems until an arbitrary point in the future. At the same time, due to the time pressure, authors in real-time environments tend to be less receptive to intrusive prompts. Nevertheless, tools that allow this kind of authoring should still take accessibility issues into account by supporting the following:
(a) Determination of Participant Requirements: If real-time authoring is consumed by individuals with no special communicative needs, there may be no need for real-time prompting. However, as with any other Web content it is often impossible for the author to know all of the needs of the actual or potential participants. Therefore, the best practice is to create real-time content that conforms with WCAG to the greatest extent possible. However, when this is not possible, a real-time authoring tool might be able to facilitate graceful degradation of accessibility by polling the participants (see "Request whiteboard descriptions" checkbox in the figure) or in some cases checking the profiles of participants (e.g., using CCPP, ACCLIP) to determine which types of accessibility practices would offer the greatest advantage in the short time available. Once this information is compiled, the tool can prompt the author (or see Assistant/Peer Author) to correct problems appropriately (preferably during Preparation Time). When it is not possible to know, with certainty, the needs of all participants, the tool should still assume that accessible content is required. This is especially true if the results of the session will be archived.
(b) Assistant/Peer Author: In some cases, it may be possible to designate one or more secondary authors in the live community, who can receive and respond to prompts for supplemental information generated as the primary author proceeds uninterrupted. The secondary author might be an unrelated specialist, analogous to Sign language interpreter, a co-author (helpful for describing technical drawings, etc.), or in some situations any member of the session audience (i.e., a peer).
(c) Preparation Time: If the authoring tool allows the author time to pre-assemble materials for a live presentation (e.g., a professor preparing for an online class), this authoring is not considered real-time authoring. The authoring tool has the opportunity and the obligation to support accessible authoring as described elsewhere in this document.
(d) Archiving: If the session will be archived, there may be other opportunities to increase the accessibility of the content of the archive by guiding the author through a process to check for and repair accessibility problems after the real-time session has ended, but prior to archiving.
If it has been determined that the author must provide real-time supplements, but no preparation time or assistant author are available, then in addition to allowing the author control of the nature and timing of prompting, the authoring tool can facilitate the inclusion of supplements by:
- Implementing the management functionality for equivalent alternatives (see Guideline B.2.4). This way, if the author uses an object that has been used before, the tool can suggest the previously stored alternative, which the author can quickly accept or decline without substantial workflow disruption.
- Providing a voice recognition capability so that the author's real-time speech input can be converted into captioning.
Example E-1: A real-time presentation in a whiteboard/chat client environment that has been enhanced to provide real-time descriptions. The example has five panes. On the far left is a list of participants ("Presenter", "John (You)", "Jane", and "Alice"). In the upper-middle is the chat "Presenter> I suggest a space theme for the slide presentation.", "Image File Inserted (by Presenter)
Description: An earthrise as seen from the surface of the moon.", "Presenter> The white text would go...", "Marker (by Presenter)
Description> Draws a red box..., and "Presenter> in this area." Notice that descriptions are appearing here. The lower-middle is the message composition area for this user and is blank. The upper-right is the whiteboard. So far there is an image of "earthrise" and a red hand-drawn rectangle on the "canvas". The whiteboard tools are "select box", "text tool", "marker", "eraser", "insert image", "line tool", "rectangle tool", and an "ellipse tool". In the lower-right is an area for describing a drawing action - in this case the "Presenter' use of the Marker". Notice that any participant can describe the events on the whiteboard even as the dialog continues. (Source: mockup by AUWG).

Appendix AE: Glossary
This section is included here for informative purposes. The normative version appears in the Authoring Tool Accessibility Guidelines 2.0 [ATAG20].
- abbreviation [WCAG 2.0]
- Shortened form of a word, phrase, or name where the abbreviation has not become part of the language. Includes:
- initialism: shortened forms of a name or phrase made from the initial letters of words or syllables contained in that name or phrase (e.g., ESP is an initialism for extrasensory perception).
- acronym: abbreviated forms made from the initial letters or parts of other words (in a name or phrase) which may be pronounced as a word (e.g., WAI is an acronym made from the initial letters of the Web Accessibility Initiative).
- accessibility
platform architecture
- A programmatic interface that is specifically engineered
to enhance communication between mainstream software applications and assistive technologies (e.g., MSAA and IAccessible2
for Windows applications, Gnome Accessibility Toolkit API for Gnome applications, Java
Access for Java applications). On some platforms it may be conventional to enhance communication further via implementing a document object.
- accessibility
problem
- ATAG 2.0 refers to two types of accessibility problems:
- authoring tool user interface accessibility
problem: An aspect of
an authoring
tool user interface that does not to meet one of the guideline success
criteria in Part A of this document. The severity of
a given problem is reflected in the level of the failed success criteria.
- Web content accessibility
problem: An aspect of Web content that violates a WCAG 2.0 success criteria. Each WCAG 2.0 success criteria has an associated Level.
- accessibility
information
- Any information
that is necessary for undertaking an accessible
authoring practice (e.g., equivalent
alternatives, role and state information, relationships within complex tables).
- accessible
content support features
- Any features of an authoring tool that directly support authors in increasing the accessibility of the content being authored. Specifically, this will include any functionality that is used to meet the success criteria for B.2.1, B.2.2, B.2.3, B.2.4, and B.2.5.
- ASCII art [WCAG 2.0]
- Picture created by a spatial arrangement of characters or glyphs (typically from the 95 printable characters defined by ASCII).
- assistive technology [WCAG 2.0, UAAG 1.0]
- Software and/or hardware that provides services to meet the requirements of users with disabilities that go beyond direct accessibility features offered by mainstream software applications and hardware. Such services include alternative presentations (e.g., as synthesized speech or magnified content), alternative input methods (e.g., voice), additional navigation or orientation mechanisms, and content transformations (e.g., to make tables more accessible). Examples of assistive technologies that are important in the context of this document include the following:
- screen magnifiers, and other visual reading assistants, which are used by people with visual, perceptual and physical print disabilities to change text font, size, spacing, color, synchronization with speech, etc in order improve the visual readability of rendered text and images;
- screen readers, which are used by people who are blind to read textual information through synthesized speech or braille;
- text-to-speech software, which is used by some people with cognitive, language, and learning disabilities to convert text into synthetic speech;
- voice recognition software, which may be used by people who have some physical disabilities;
- alternative keyboards, which are used by people with certain physical disabilities to simulate the keyboard;
- alternative pointing devices, which are used by people with certain physical disabilities to simulate mouse pointing and button activations.
- Mainstream software applications and hardware may also provide services directly that meet the requirements of users with disabilities.
- audio
description - also called described video, video description and descriptive narration [WCAG 2.0]
- An equivalent
alternative that takes the form of narration added to the soundtrack to describe important visual details that cannot be understood from the main soundtrack alone. Audio description of video provides information about actions, characters, scene changes, on-screen text, and other visual content. In standard audio description, narration is added during existing pauses in dialogue. In extended audio description, the video is paused so that there is time to add additional description.
- authoring
action
- Any action that authors take
using the authoring
tool user interface with the intention of editing content (e.g., typing text, deleting, inserting an element, applying a template). Most authoring tool user interfaces also enable actions that do not edit content (e.g., setting preferences for the tool, searching the help system).
- authoring
outcome
- A characteristic of content that
results from one or more authoring actions being applied.
Authoring outcomes exist at different levels (e.g., making a paragraph bold vs. deploying a site-wide navigation system) and are cumulative (e.g., text is entered, then styled, then made into a link, then given title). Mainstream rendered (authoring) outcomes are only the subset of content characteristics that are apparent to end-users of mainstream user agents (e.g., text that is bold, a seamless patchwork of images; but not commented code or table relationships).
Often, multiple authoring practices exist that will result in the same mainstream rendered authoring outcome, but the outcomes may differ with respect to accessibility (e.g., styled text may appear identical to an image of text on the screen, but will appear differently in audio output).
- authoring
practice
- A technique that guides authors or
the authoring tool in selecting authoring actions to apply to content in order to achieve particular authoring outcomes. (e.g., controlling presentation with style sheets, commenting code, testing on multiple browsers). An accessible
authoring practice is one that seeks to avoid or correct one or more Web
content accessibility problems. Accessible authoring practices sometimes require accessibility
information.
- authoring
session
- A state of the authoring tool during which content can be edited by the author. The end of an authoring session is the point in time at which a session ends and the author has no further opportunity to make changes without starting another session. This may be under the control of the author (e.g., closing a document, publishing) or it may be controlled by the authoring tool (e.g., when the authoring tool transfers editing permission to another author on a collaborative system). Note: Automated content generation may continue after the end of an authoring session (e.g., CMS updates).
- authoring
tool user interface (non-Web-Based)
- Any components of an authoring
tool user interface that is not implemented as Web content and instead runs directly on a non-user agent platform such as Windows, Mac OS, Java Virtual Machine, etc.
- authoring
tool user interface (Web-based)
- Any components of an authoring
tool user interface, including editing views, documentation, etc., that is implemented using Web content technologies and is rendered by a user
agent. Since Web-based tools may be implemented in the same Web content technologies that they are used to edit, the distinction between the tool's content dependent and content independent functions may
be less clear than with non-Web-based authoring tools.
- authoring
tool user interface
- The display and control mechanism that authors use to communicate with and operate the authoring tool software. User interfaces may be non-Web-based or Web-based or a combination (e.g., a non-Web-based authoring tool might have Web-based help pages). User interfaces include content independent functions and content dependent functions. An accessible
authoring tool user interface is one that meets the success criteria in Part
A (i.e., does not include any authoring tool user interface accessibility
problems). The level of accessibility is
determined by the levels of the satisfied success criteria.
- authoring tool
- ATAG 2.0 defines an "authoring tool" as any software, or collection
of software components, that authors can use to create or modify Web
content for use by other people. Also see
"Definition of authoring tool" section.
- author permission
- Whether a person has a right to modify given Web content. In other words, whether they qualify as an author of the content. Some authoring tools are capable of managing authoring permissions in order to prevent unauthorized modifications.
- authors
- Any person using an authoring tool to create or modify Web
content for use by other people. This
may include content authors, designers, programmers, publishers, testers,
etc. working either alone or collaboratively. A person will only qualify as an author of given Web content if the (1) the authoring tool provides functionality to create or modify the relevant Web content technology and (2) the person has author permission for that particular Web content.
- blink [WCAG 2.0]
- Switch back and forth between two visual states in a way that is meant to draw attention. It is possible for something to be large enough and blink brightly enough at the right frequency to be also classified as a flash.
- captions [WCAG 2.0]
- An equivalent
alternative that takes the form of text presented and synchronized with synchronized media to provide not only the speech, but also non-speech information conveyed through sound, including meaningful sound effects and identification of speakers. In some countries, the term "subtitle" is used to refer to dialogue only and "captions" is used as the term for dialogue plus sounds and speaker identification. In other countries, "subtitle" (or its translation) is used to refer to both.
- change of context [WCAG 2.0]
- Change of view or focus. Content that changes the function or meaning of an interface. A change of content is not always a change of context. Small changes in content, such as an expanding outline or dynamic menu, do not change the context.
- checking (accessibility) - also
called accessibility evaluation [EARL 1.0]
- The process by which Web
content is evaluated for Web
content accessibility problems. ATAG 2.0 identifies three types of
checking, based on increasing levels of automation of the tests:
- manual
checking: where the tests are carried out by authors. This includes the case where the authors are aided by instructions or guidance provided by the authoring tool, but where authors must carry out the actual test procedure;
- semi-automated
checking: where the tests are partially carried out by the authoring tool, but where authors' input or judgment is still required to decide or help decide the outcome of the tests; and
- automated
checking: where the tests are carried out automatically by the authoring tool without any intervention by the authors.
An authoring tool may support any combination of checking types.
- collection
of software components
- Any software programs that are used either together (e.g., base tool
and plug-in) or separately (e.g., markup editor,
image editor, and validation tool), regardless of whether there has been
any formal collaboration between the developers of the programs.
- content being edited
- The Web content that is currently being modified by the authoring tool
for use by other people.
- content generation
- ATAG 2.0 refers to two broad categories of content generation:
- author-generated content: When authors specify content (e.g.,
typing markup into a text editor, choosing an
element by name from a list, entering information into a dialog box).
- automatically-generated content: When the authoring tool specifies content (e.g., applying a template, automatically correcting markup errors, dynamically generated content) as programmed by the developer.
- content (Web) - or shortened to content [WCAG 2.0]
- Information and sensory experience to be communicated to the user by means of a user
agent, including code or markup that defines the content's structure, presentation, and interactions. In ATAG 2.0, "content" is primarily
used in the context of the output that is produced by the
authoring tool. This includes Web applications, including those that, in turn, act as Web-based authoring tools.
Accessible Web content is Web content that does not contain accessibility
problems. Usually this refers to a particular level of accessibility (e.g., Web content that meets Level "A" Web content accessibility). Accessible Web content is shorthand for content that meets a given set of accessibility criteria. This does not not necessarily mean that it will be accessible to every person with a disability.
- content rendering
- User interface functionality that the authoring tool presents as it
renders, plays or executes Web content. In this document the term
covers conventional renderings (e.g., "WYSIWYG"), unconventional
renderings (e.g., rendering an audio file as a graphical wavefront) and partial renderings, in which some aspects of the content are rendered,
played, or executed, but not others (e.g., a frame-by-frame video editor
renders the graphical, but not the temporal aspect, of a video).
- conversion
- A process that takes as input, content in one Web content technology (or non-Web content technology, such as a word processing format) and produces as output, content in a different Web content technology (e.g., "Save as HTML" functions).
- developer
- Any people responsible for programming the authoring tool. This will include the programmers of any components included by the claimant in the conformance claim. In some cases, development of the authoring tool is complete before the author uses it, however in other cases (e.g., some Web-based tools) the developer may continue to modify the authoring tool after content is published by the author such that the Web content experienced by the end user is modified.
- direct accessibility
- Features of mainstream software applications and hardware that augment accessibility by people with disabilities (e.g., keyboard navigation, zoom functions, text-to-speech).
- display settings
- ATAG 2.0 refers to two types of display settings:
- display settings (audio): the characteristics of
audio output of music, sounds and speech and include volume, speech voices,
voice speed, and voice emphasis.
- display settings (visual): the characteristics of
the on-screen rendering of text and graphics and include fonts, sizes,
colors, spacing, positioning, and contrast.
- documentation
- Any information that supports the use of an authoring
tool. This information may be found electronically or otherwise and includes
help, manuals, installation instructions, sample work flows,
and tutorials, etc.
- document object
- The internal representation of data in the source content by a desktop authoring tool or user agent. The document object may form part of an accessibility
platform architecture that enables communication with assistive technologies. Web-based authoring tools essentially leverage the document object that is maintained by the user agent.
- element
- A pair of tags and their content, or an "empty" tag - one that requires
no closing tag or content (used in the same sense as in HTML and XML).
- end user
- A person who interacts with Web
content once it has been authored. This includes people using assistive technologies.
- equivalent
alternative
- Content that is an acceptable substitute
for other content that a person may not be able to access. An equivalent
alternative fulfills essentially the same function or purpose as the original
content upon presentation:
- text
alternative [WCAG 2.0]: text that is available via the platform that is used in place of non-text content.
- full text alternative for synchronized media including any interaction [WCAG 2.0]: document including correctly sequenced text descriptions of all visual settings, actions, speakers, and non-speech sounds, and transcript of all dialogue combined with a means of achieving any outcomes that are achieved using interaction (if any) during the synchronized media.
- synchronized
alternatives: present essential audio information visually (i.e., captions)
and essential video information in an auditory manner (i.e., audio
descriptions).
- flash [WCAG 2.0]
- A pair of opposing changes in relative luminance that can cause seizures in some people if it is large enough and in the right frequency range. See general flash threshold and red flash threshold for information about types of flash that are not allowed. See also blink.
- general
flash and red flash thresholds [WCAG 2.0]
- A sequence of flashes or rapidly changing image sequences where all three of the following occur:
- there are more than three flashes within any one-second period,
- the flashing is below 50 Hz, and
- the combined area of flashes occurring concurrently and contiguously occupies more than a total of .006 steradians (25% of any 10 degree visual field on the screen).
- Notes: For the general flash threshold, a flash is defined as a pair of opposing changes in relative luminance of 10% or more and the relative luminance of the darker image is below 0.80. An "opposing change" is an increase followed by a decrease, or a decrease followed by an increase. For the red flash threshold, a flash is defined as any transition to or from a saturated red. For general Web content, using a 341 x 256 pixel rectangle anywhere on the displayed screen area when the content is viewed at 1024 x 768 pixels will provide a good estimate of a 10 degree visual field for standard screen sizes and viewing distances.
- human language
- Language that is spoken, written or signed (through visual or tactile means ) to communicate with humans.
- inform
- To provide authors with information via the authoring tool user interface. Informing mechanisms range from unobtrusive (i.e., information presented without
stopping the authors' current activity) to intrusive (i.e., interrupting
the author's current activity). Information may be provided as part of a prompt.
- informative [WCAG 2.0]
- For information purposes and not required for conformance.
- label [WCAG 2.0]
- Text or other component with a text alternative that is presented to authors to identify a component. A label is presented to all authors whereas the name may be hidden and only exposed by assistive technology. In many (but not all) cases the name and the label are the same.
- mainstream applications and hardware - also called mainstream technology
- Software applications and hardware for which augmenting accessibility is secondary to some other purpose (as opposed to assistive technology where it is the primary purpose). Mainstream technologies may include direct accessibility features.
- markup
- A set of tags from a markup
language. Markup can be presentational (i.e., markup that encodes information about the visual layout of the content), structural (i.e.,
markup that encodes information about the structural role of elements of the content) or semantic (i.e., markup that encodes
information about the intended meaning of the content). A markup language is a syntax and/or set of rules to manage markup (e.g.,
HTML, SVG, MathML).
- name [WCAG 2.0]
- Text by which software can identify a component to the user. The name may be hidden and only exposed by assistive technology, whereas a label is presented to all users. In many (but not all) cases, the label and the name are the same.
- non-text
content [WCAG 2.0]
- Any content that is not a sequence of characters that can be made available via the platform or where the sequence is not expressing something in human language. This includes ASCII Art (which is a pattern of characters), emoticons, leetspeak (which is character substitution), and images representing text.
- normative [WCAG 2.0, UAAG 2.0]
- Required for conformance. One may conform in a variety of well-defined ways to this document. Content identified as "informative" or "non-normative" is never required for conformance.
- option
- When an author is presented with choices. An option may be local (e.g., prompting whether to save before closing a piece of content) or global (e.g., preference settings).
- platform
- The software environment within which the authoring tool
operates. For non-Web-based user interface functionality this will be an operating
system (e.g., Windows, Mac OS, Linux), virtual machine (e.g., JVM) or a
higher level GUI toolkit (e.g., Eclipse). For Web-based authoring user interface functionality, "platform" applies more generically to user agents in
general, although for purposes of evaluating conformance to ATAG 2.0 a
specific user agent(s) will be listed in the conformance
profile. Available via the platform: For non-Web-based user interface functionality this means via
an implemented accessibility platform architecture. For Web-based user interface functionality this means following relevant Web content accessibility design guidelines so that the user agent can pass on the information.
- plug-in [UAAG 2.0]
- A program that runs as part of the authoring
tool (e.g., a third-party evaluation and repair tool) and that is not part of content being edited. Authors generally
choose to include or exclude plug-ins from their authoring tool.
- presentation [WCAG 2.0]
- Rendering of the content in a form
to be perceived by authors.
- prominence
- A heuristic measure of the degree to which authors are likely to notice components in the authoring tool user interface when operating the authoring tool. In this document, prominence refers to visual as well as keyboard-driven navigation. Some of the factors that contribute to the prominence of a component include:
- component size (large items or items surrounded by extra white space may appear to be conferred higher importance),
- components order (items that occur early in the "localized" reading order (e.g., left to right and top to bottom; right to left and top to bottom) are conferred higher importance),
- components grouping (grouping items together can change the reading order and the related judgments of importance),
- advanced options (when the properties are explicitly or implicitly grouped into sets of basic and advanced properties, the basic properties may gain apparent importance), and
- highlighting (items may be distinguished from others using icons, color, styling).
- prompt [UAAG 2.0]
- Any authoring tool initiated
request for a decision or piece of information from authors. Well designed
prompting will urge, suggest, and encourage authors.
- publishing
- The point at which the authors of content intend to make it available to end users (e.g., uploading a Web page, committing a change in a wiki).
- recognize
- When an authoring tool is able to process encoded information, such as properties or relationships, with certainty. For example, an authoring tool would only be able to recognize a particular text string as a text label for a non-text object, if this relationship was appropriately encoded (e.g., in an "alt" attribute, by a "labeledby" property).
- relationships [WCAG 2.0]
- Meaningful associations between distinct pieces of content.
- relative luminance [WCAG 2.0]
- The relative perceived brightness of any point, normalized to 0 for darkest black and 1 for lightest white.
- Note 1: The relative luminance of an sRGB color is defined as L = 0.2126 * R + 0.7152 * G + 0.0722 * B where R, G and B are defined as:
- if RsRGB <= 0.03928 then R = RsRGB/12.92 else R = ((RsRGB+0.055)/1.055) ^ 2.4
- GsRGB <= 0.03928 then G = GsRGB/12.92 else G = ((GsRGB+0.055)/1.055) ^ 2.4
- if BsRGB <= 0.03928 then B = BsRGB/12.92 else B = ((BsRGB+0.055)/1.055) ^ 2.4
and RsRGB, GsRGB, and BsRGB are defined as:
- RsRGB = R8bit/255
- GsRGB = G8bit/255
- BsRGB = B8bit/255
The "^" character is the exponentiation operator. (Formula taken from [sRGB] and [IEC-4WD]).
- Note 2: Almost all systems used today to view Web content assume sRGB encoding. Unless it is known that another color space will be used to process and display the content, authors should evaluate using sRGB colorspace.
- Note 3: For dithered colors, use average values of the colors used (average R, average G, and average B).
- Note 4: Tools are available that automatically do the calculations when testing contrast and flash.
- repairing (accessibility) [EARL 1.0]
- The process by which Web
content accessibility problems that have been identified within content are resolved. ATAG 2.0 identifies three types of repairing,
based on increasing levels of automation:
- manual: where the repairs are carried out by authors. This includes the case where the authors are aided by instructions or guidance provided by the authoring tool, but where authors carry out the actual repair procedure;
- semi-automated: where the repairs are partially carried out by the authoring tool, but where authors' input or judgment is still required to complete the repair; and
- automated: where the repairs are carried out automatically by the authoring tool without any intervention by the authors.
- reversible
actions
- Authoring actions that, by their nature, can be completely undone so that the system returns to the state it was
in before the action. Actions that are not reversible may include certain
save and delete actions as well as actions made in a collaborative environment
that another author has begun to work with.
- role [WCAG 2.0]
- Text or a number by which software can identify the function of a component within Web content (e.g., a number that indicates whether an image functions as a hyperlink, command button, or check box).
- structured
element set
- Content that consists of organized elements (e.g., lists, maps, hierarchies, graphs).
- technology (Web content) - or shortened to technology [WCAG 2.0, UAAG 2.0]
- A mechanism for encoding instructions to be rendered, played or executed by user agents. Web Content technologies may include markup languages, data formats, or programming languages that authors may use alone or in combination to create end-user experiences that range from static Web pages to multimedia presentations to dynamic Web applications. Some common examples of Web content technologies include HTML, CSS, SVG, PNG, PDF, Flash, and JavaScript.
- template
- A content pattern that is filled in by authors or the authoring tool to produce content for end users (e.g., document templates, content management templates, presentation themes). Often templates will pre-specify at least some authoring decisions.
- template selection mechanism
- A function that allows authors to select templates to use as the basis for new content or to apply to existing content.
- transformation
- A process that takes content in one Web content technology as input and outputs different content in the same technology (e.g., a function that transforms tables into lists).
- tutorial
- A type of documentation that involves
the sequential presentation of instructions for performing multi-part tasks.
- user
agent [WCAG 2.0, UAAG 2.0]
- Any software that retrieves and presents Web content for end users. Examples include Web browsers, media players, plug-ins, and other programs including assistive technologies, that help in retrieving, rendering and interacting with Web content.
- user interface component [WCAG 2.0]
- A part of the user interface "chrome" or content display (including renderings) that is perceived by authors as a single control for a distinct function. In ATAG 2.0, the term is used to denote any part of the user interface of the authoring tool involved with display or control.
- video [WCAG 2.0]
- The technology of moving pictures or images. Video can be made up of animated or photographic images, or both.
- view
- User interface functionality that authors use to interact with the content being edited. In addition to being editable (i.e., editing views) or non-editable (e.g. a preview that presents content as it would appear in a user agent), there are several broad approaches to presenting the content:
- source content in which the *document source* is presented (e.g., plain text editors, form-based editing views that provide direct access to the unrendered content (e.g., selecting attribute values),
- content rendering, and
- meta-content in which authors set high-level options that the authoring tool then interprets to generate the resulting content (e.g., a content management system that only lets authors set the month and year on a built-in calendar module).
- workflow
- A customary sequence of steps or tasks authors follow to produce a deliverable.
Appendix B: How to refer to ATAG 2.0 from other documents
This section is informative.
There are two recommended ways to refer to the "Authoring Tool Accessibility
Guidelines 2.0" (and to W3C documents in general):
- References to a specific version of "Authoring Tool Accessibility
Guidelines 2.0." For example, use the "this version" URI to
refer to the current document:
http://www.w3.org/TR/2008/WD-ATAG20-20081016/
- References to the latest version of "Authoring Tool Accessibility
Guidelines 2.0." Use the "latest version" URI to refer to
the most recently published document in the series:
http://www.w3.org/TR/ATAG20/.
In almost all cases, references (either by name or by link) should be to
a specific version of the document. W3C will make every effort to make this
document indefinitely available at its original address in its original form.
The top of this document includes the relevant catalog metadata for specific
references (including title, publication date, "this version" URI,
editors' names, and copyright information).
An XHTML 1.0 paragraph including a reference to this specific document
might be written:
<p>
<cite><a href="http://www.w3.org/TR/2008/WD-ATAG20-20081016/">
"Authoring Tool Accessibility Guidelines 2.0,"</a></cite>
J. Treviranus, J. Richards, J. Spellman, eds.,
W3C Recommendation, http://www.w3.org/TR/ATAG20/.
The <a href="http://www.w3.org/TR/ATAG20/">latest version</a> of this document is available at http://www.w3.org/TR/ATAG20/.</p>
For very general references to this document (where stability of content
and anchors is not required), it may be appropriate to refer to the latest
version of this document. Other sections of this document explain how to build a conformance
claim.
Appendix CE: References
This section is informative.
For the latest version of any W3C specification please consult the list of W3C Technical Reports at http://www.w3.org/TR/. Some documents listed below may have been superseded since the publication of this document.
Note: In this document, bracketed labels such as "[WCAG20]" link to the corresponding entries in this section. These labels are also identified as references through markup.
- [ACCESSFORALL]
- "IMS AccessForAll Meta-data Overview", IMS Global Learning Consortium, Inc.
- [AERT]
- "Techniques For Accessibility Evaluation And Repair Tools", C. Ridpath, W. Chisholm, eds., 26 April 2000. This W3C Working Draft is available at http://www.w3.org/TR/2000/WD-AERT-20000426.
- [APPLE-ACCESS]
- "Introduction to Accessibility Overview," Apple Computer Inc.
- [ATAG10]
- "Authoring Tool Accessibility Guidelines 1.0", J. Treviranus, C. McCathieNevile, I. Jacobs, and J. Richards, eds., 3 February 2000. This W3C Recommendation is available at http://www.w3.org/TR/2000/REC-ATAG10-20000203/.
- [ATAG10-TECHS]
- "Techniques for Authoring Tool
Accessibility Guidelines 1.0," J. Treviranus, C. McCathieNevile, J. Richards,
and G. Rosmaita, eds., 29 October 2002. This W3C reference is http://www.w3.org/TR/2002/NOTE-ATAG10-TECHS-20021029/.
- [ATAG20]
- "Authoring Tool Accessibility Guidelines
2.0," J. Treviranus, J. Richards, C. McCathieNevile, and M. May, eds.
The latest version is available at http://www.w3.org/TR/ATAG20. The latest version of ATAG 2.0 is available
at http://www.w3.org/TR/ATAG20.
- [CARBON-ACCESS]
- "Introduction to Accessibility Programming Guidelines for Carbon," Apple Corporation.
- [COCOA-ACCESS]
- "Introduction to Accessibility Programming Guidelines for Cocoa," Apple Corporation.
- [CSS2-ACCESS]
- "Accessibility Features of CSS," I. Jacobs and J. Brewer, eds., 4 August 1999. This W3C Note is available at http://www.w3.org/1999/08/NOTE-CSS-access-19990804. The latest version of Accessibility Features of CSS is available at http://www.w3.org/TR/CSS-access.
- [DOM]
- "Document Object Model (DOM) Level 2 Core Specification," A. Le Hors, P. Le Hégaret, L. Wood, G. Nicol, J. Robie, M. Champion, S. Byrne, eds., 13 November 2000. This W3C Recommendation is http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/.
- [EARL]
- "EARL - the Evaluation And Report Language," W3C-WAI Evaluation and Repair Tools Working Group.
- [ECLIPSE-ACCESS]
- "Designing Accessible Plug-ins in Eclipse," T. Creasy, IBM OTI Labs.
- [ECLIPSE-API]
- "Eclipse Platform API"
- [EDU-SOFT-ACCESS]
- "Making Educational Software and Web Sites Accessible,". G. Freed, M. Rothberg and T. Wlodkowski, National Center for Accessible Media
- [EITAAC]
- "EITAAC
Desktop Software standards," Electronic Information Technology Access
Advisory (EITAAC) Committee.
- [GNOME-ACCESS]
- "GNOME Accessibility for Developers," C. Benson, B. Cameron, B. Haneman, S. Snider, P. O'Briain, The GNOME Accessibility Project.
- [GNOME-API]
- "Gnome Accessibility Toolkit API"
- [GNOME-KDE-KEYS]
- "Gnome/KDE Keyboard Shortcuts," Novell Corporation.
- [HTML4-ACCESS]
- "WAI Resources:
HTML 4.0 Accessibility Improvements," I. Jacobs, J. Brewer, and D. Dardailler,
eds. This document describes accessibility features in HTML 4.0.
- [IBM-ACCESS]
- "Software Accessibility,"
IBM Special Needs Systems.
- [IEC-4WD]
- IEC/4WD 61966-2-1: Colour Measurement and Management in Multimedia Systems and Equipment - Part 2.1: Default Colour Space - sRGB. May 5, 1998.
- [ISO-TS-16071]
- "Ergonomics
of human-system interaction -- Guidance on accessibility for human-computer
interfaces". International Organization for Standardization.
- [JAVA-ACCESS]
- "IBM
Guidelines for Writing Accessible Applications Using 100% Pure Java,"
R. Schwerdtfeger, IBM Special Needs Systems.
- [JAVA-API]
- " Java Accessibility Package"
- [JAVA-CHECKLIST]
- "Java
Accessibility Guidelines and Checklist," IBM Special Needs Systems.
- [MACOSX-KEYS]
- "Mac OS X keyboard shortcuts," Apple Corporation.
- [MS-ENABLE]
- "Accessibility for Applications
Designers," Microsoft Corporation.
- [MS-KEYS]
- "Keyboard shortcuts for Windows," Microsoft Corporation.
- [MSAA-API]
- "Microsoft Active Accessibility," Microsoft Corporation.
- [NOTES-ACCESS]
- "Lotus Notes application accessibility," IBM Corporation.
- [RDF10]
- "Resource Description
Framework (RDF) Model and Syntax Specification," O. Lassila, R. Swick,
eds. The 22 February 1999 Recommendation is http://www.w3.org/TR/1999/REC-rdf-syntax-19990222.
The latest version of RDF 1.0 is available at http://www.w3.org/TR/REC-rdf-syntax.
- [SMIL-ACCESS]
- "Accessibility Features of SMIL," M.-R. Koivunen and I. Jacobs, eds., 21 September 1999. This W3C Note is available at available at http://www.w3.org/TR/SMIL-access.
- [sRGB]
- "A Standard Default Color Space for the Internet - sRGB," M. Stokes, M. Anderson, S. Chandrasekar, R. Motta, eds., Version 1.10, November 5, 1996. A copy of this paper is available at http://www.w3.org/Graphics/Color/sRGB.html.
- [SUN-DESIGN]
- "Designing for Accessibility," Eric Bergman and Earl Johnson. This paper
discusses specific disabilities including those related to hearing, vision,
and cognitive function.
- [SVG-ACCESS]
- "Accessibility of Scalable Vector Graphics," C. McCathieNevile, M.-R. Koivunen, eds., 7 August 2000. This W3C Note is available at http://www.w3.org/TR/SVG-access.
- [TRACE-REF]
- "Application
Software Design Guidelines," compiled by G. Vanderheiden. A thorough reference
work.
- [UAAG]
- "User Agent Accessibility Guidelines
1.0," I. Jacobs, J. Gunderson, E. Hansen, eds.17 December 2002. This W3C Recommendation is available at http://www.w3.org/TR/2002/REC-UAAG10-20021217/.
- [USER-TEST-UCD]
- "Just Ask: Integrating Accessibility Throughout Design," S. L. Henry. An on-line book.
- [USER-TEST-WEB]
- "Involving Users in Web Accessibility Evaluation," S. L. Henry, ed. W3C
- [WCAG10]
- "Web Content Accessibility Guidelines 1.0", W. Chisholm, G. Vanderheiden, and I. Jacobs, eds., 5 May 1999. This WCAG 1.0 Recommendation is available at http://www.w3.org/TR/1999/WAI-WEBCONTENT-19990505/.
- [WCAG10-TECHS]
- "Techniques for Web Content Accessibility Guidelines 1.0," W. Chisholm, G. Vanderheiden, and I. Jacobs, eds., 6 November 2000. This W3C Note is available at http://www.w3.org/TR/WCAG10-TECHS/.
- [WCAG20]
- "Web Content Accessibility Guidelines 2.0 ", B. Caldwell, M. Cooper, L. Guarino Reid, and G. Vanderheiden.
- [WCAG20-TECHS]
- "Techniques for WCAG 2.0," B. Caldwell, M. Cooper, L. Guarino Reid, G. Vanderheiden, eds. Note: This document is still a working draft.
- [WCAG20-UNDERSTANDING]
- "Understanding (WCAG 2.0)," B. Caldwell, M. Cooper, L. Guarino Reid, G. Vanderheiden, eds. Note: This document is still a working draft.
- [WHAT-IS]
- "What is Accessible Software," James W. Thatcher, Ph.D., IBM, 1997. This paper, available at the IBM Accessibility Center, gives a short example-based introduction to the difference between software that is accessible, and software that can be used by some assistive technologies.
- [XAG]
- "XML Accessibility Guidelines", D. Dardailler, S. B. Palmer, C. McCathieNevile, eds. 3 October 2002. This is a Working Group Draft.
Appendix DF: Acknowledgments
Appendix Editors:
- Jan Richards (Adaptive Technology Resource Centre, University of Toronto)
- Roberto Scano (IWA/HWG
Participants active in the AUWG at the time of publication:
- Tim Boland (National Institute for Standards and Technology)
- Ann McMeekin (Invited Expert)
- Greg Pisocky (Adobe)
- Jan Richards (Adaptive Technology Resource Centre, University of Toronto)
- Andrew Ronksley (Royal National Institute for the Blind)
- Roberto Scano (IWA/HWG)
- Reed Shaffner (Microsoft)
- Dana Simberkoff (HiSoftware Inc.)
- Jeanne Spellman (W3C)
- Michael Squillace (IBM)
- Jutta Treviranus (WG Chair; Adaptive Technology Resource Centre, University of Toronto)
Other previously active AUWG participants and other contributors to ATAG 2.0:
Kynn Bartlett, Giorgio Brajnik, Judy Brewer, Wendy Chisholm, Daniel Dardailler, Geoff Deering, Barry A. Feigenbaum, Katie Haritos-Shea, Kip Harris, Phill Jenkins, Len Kasday, Marjolein Katsma, William Loughborough, Karen Mardahl, Charles McCathieNevile, Matt May, Matthias Müller-Prove, Liddy Nevile, Graham Oliver, Wendy Porch, Bob Regan, Chris Ridpath, Gregory Rosmaita, Heather Swayne, Gregg Vanderheiden, Carlos Velasco, and Jason White.
This document would not have been possible without the work of those who contributed to ATAG 1.0.
This publication has been funded in part with Federal funds from the U.S. Department of Education under contract number ED05CO0039. The content of this publication does not necessarily reflect the views or policies of the U.S. Department of Education, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.