This is a draft document supplied by the WCAG Techniques Task Force. It in no way represents a WCAG Working Group consensus or agreement and is provided for informational and discussion purposes only. The accessibility test listed below should not be construed as required for conformance with the proposed WCAG2.
input elements with a type attribute value of "image" identifies the purpose or function of the image.Copyright 2005, ATRC, University Of Toronto, All Rights Reserved. W3C liability, trademark, document use and software licensing rules apply.
This test case was created by the ATRC at the University Of Toronto. It should not be construed as required for conformance with the proposed WCAG2.
The complete list of tests may be found at http://www.w3.org/WAI/GL/WCAG20/tests/
Comments on this test may be made to the WCAG mailing list.
As part of the conformance test process, this test has a status of 'accepted'.
Guideline: 1.1 - Provide text alternatives for all non-text content.
Success Criteria:
2. For functional non-text content , text alternatives serve the same purpose as the non-text content. If text alternatives can not serve the same purpose as the functional non-text content, text alternatives identify the purpose of the functional non-text content Non-text content that uses technologies outside the baseline must satisfy guideline 4.2 . How to provide text alternatives for content that is functional . (Informative)
Level 1
The WCAG2 has 3 priority levels for making Web content accessible. This test has a priority of 'Level 1'.
The WCAG Working Group has created techniques that describe how Web content may be made accessible. The following techniques are related to this test:
The following tests must be run before running this test. If any of the prerequisite tests fail then this test is invalid and should not be run.
input elements that have a type attribute value of "image".alt attribute value of the input element.input elements with a type attribute value of "image" identifies the purpose or function of the image.Any accessibility check may be performed after this test.
These test files contain examples of the accessibility problem detectable by this test. They may also contain more accessibility problems than the one described in this test. Please ignore any extraneous accessibility problems in these files.
input element, type of "image", has Alt text that does not identify the purpose or function of the image.)
<?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>
<title>OAC Testfile - Check #59 - Positive</title>
</head>
<body>
<form action="http://example.com/prog/text-read" method="post">
<p><input type="image" name="submit" src="search.gif" alt="a red button" /></p>
</form>
</body>
</html>
input element, type of "image", has Alt text that identifies the purpose or function of the image.)
<?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>
<title>OAC Testfile - Check #59 - Negative</title>
</head>
<body>
<form action="http://example.com/prog/text-read" method="post">
<p><input type="image" name="submit" src="search.gif" alt="Search" /></p>
</form>
</body>
</html>