Element

a

Error Type

Likely

Guidelines

  • BITV 1.0 (Level 2)
    Guideline GroupLevel 1
    Guideline Subgroup1.4 For any time-based multimedia presentation (e.g., a movie or animation), synchronize equivalent alternatives (e.g., captions or auditory descriptions of the visual track) with the presentation.
  • New Guideline
  • Stanca Act
    Guideline GroupRequirement 18: Synchronized Text Equivalents For Multimedia
  • WCAG 1.0 (Level A)
    Guideline GroupPriority 1
    Guideline Subgroup1.4 For any time-based multimedia presentation (e.g., a movie or animation), synchronize equivalent alternatives (e.g., captions or auditory descriptions of the visual track) with the presentation.
  • WCAG 1.0 (Level AA)
    Guideline GroupPriority 1
    Guideline Subgroup1.4 For any time-based multimedia presentation (e.g., a movie or animation), synchronize equivalent alternatives (e.g., captions or auditory descriptions of the visual track) with the presentation.
  • WCAG 1.0 (Level AAA)
    Guideline GroupPriority 1
    Guideline Subgroup1.4 For any time-based multimedia presentation (e.g., a movie or animation), synchronize equivalent alternatives (e.g., captions or auditory descriptions of the visual track) with the presentation.
  • WCAG 2.0 (Level A)
    Guideline Group1.2 Provide synchronized alternatives for multimedia
    Guideline SubgroupSuccess Criteria 1.2.1 Audio-only and Video-only (Prerecorded) (A)
  • WCAG 2.0 (Level AA)
    Guideline Group1.2 Time-based Media: Provide alternatives for time-based media.
    Guideline SubgroupSuccess Criteria 1.2.1 Audio-only and Video-only (Prerecorded) (A)
  • WCAG 2.0 (Level AAA)
    Guideline Group1.2 Time-based Media: Provide alternatives for time-based media
    Guideline SubgroupSuccess Criteria 1.2.1 Audio-only and Video-only (Prerecorded) (A)
  • WCAG SRWSD

Requirement

Links to multimedia have a link to text alternative.

Error

Link to multimedia may be missing a link to text alternative.

Short Description

This error will be generated for each a (anchor) element that contains an href attribute value ending with (case insensitive): .wmv, .mpg, .mov, .ram, .aif.

How To Determine

Question Does this link to a multimedia file have a link to a text alternative?
PASS Link to multimedia file has a link to a text alternative.
FAIL Link to multimedia file does not have a link to a text alternative.

Steps To Check

Procedure

1. Check each a (anchor) element in the content.
2. Check the href attribute value for a multimedia file extension.
3. Common multimedia file extensions are .wmv, .mpg, .mov, .ram, and .aif.
4. If the document contains a link to a multimedia file, then check for a link to a text alternative.
5. The link to the text alternative must be immediately before or immediately after the link to the multimedia file.

Expected Result

1. Links to multimedia have a link to text alternative.

Failed Result

1. Add a link to a text alternative immediately before or immediately after the link to the multimedia file.

Examples

Pass Examples

Link to multimedia file also has link to text alternative.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/xhtml; charset=UTF-8" />
<title>ATRC Testfile - Check #145.2 - Negative</title>
</head>
<body>
<p>View <a href="movie.wav">the movie</a> <a href="alternative.html">(text alternative)</a>.</p>
</body>
</html>

Fail Examples

Link to multimedia file (.wmv) without a text alternative.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/xhtml; charset=UTF-8" />
<title>ATRC Testfile - Check #145.1 - Positive</title>
</head>
<body>
<p>View <a href="movie.wmv">the movie</a>.</p>
</body>
</html>

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