Asqatasun v4 - Summary

Asqatasun v4 - RGAA 3.0 - Rule 1.3.3

Summary

This test consists in checking whether each button associated with an image that handles information has a relevant alternative.

Business description

Criterion

1.3

Test

1.3.3

Description

For each button associated with an image (input tag with the attribute type="image"), and with an alt attribute, is the content of this attribute relevant (except in particular cases)?

Level

A

Technical description

Scope

Page

Decision level

Semi-Decidable

Algorithm

Selection

Set1

All the <input> tags with a "type" attribute equals to "image" and an "alt" attribute (css selector : input[type=image][alt])

Process

 Test1

For all elements of Set1, check whether the content of the "alt" attribute is not relevant (see Notes for details about relevancy test).

For each occurrence of true-result of Test1, raise a MessageA.

For each occurrence of false-result of Test1, raise a MessageB

MessageA
MessageB

Analysis

Failed

At least one <input> tag with a "type" attribute equals to "image" has an irrelevant "alt" attribute (Test1 returns true for at least one element)

Pre-qualified

The alternatives of all the <input> tags with a "type" attribute equals to "image" need to be manually checked (Test1 returns false for all the elements of Set1)

Not Applicable

The page has no <input> tag with a "type" attribute equals to "image" tag and an "alt" attribute (Set1 is empty)

Notes

The content of the "alt" attribute is seen as not relevant if :

TestCases

TestCases files for rule 1.3.3