Test Case xhtml1_wcag2_20050630_1.1_l1_sc1_001: Alternative text for images: missing alt attribute

Formal Metadata

Formal Metadata
TitleAlternative text for images: missing alt attribute
DescriptionA document containing a single image of a cat included by means of an img element without an alt attribute.
CreatorBenToWeb (Christophe.Strobbe@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-05-10
Statusaccepted by first validators

Technologies and Features

Technologies are markup languages or data formats. If the technology is a markup language, “features” refers to elements and attributes.

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

Feature: img (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: How to specify alternate text .

Test Data

Purpose

The test case is intended to fail because no text alternative is provided for the image. Only the absence of a text alternative is tested here, not validity (img elements must have an alt attribute).

Test Modes

Automatic evaluation.

Test Files

Test file.

TCDL Data

xhtml1_wcag2_20050630_1.1_l1_sc1_001 (XML).

Rules

“Rules” refer to success criteria in WCAG 2.0, checkpoints in WCAG 1.0 and similar requirements.

Primary Rules

The test case fails the following success criterion at line 9, column 23: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#text-equiv-informative.

Functional Outcome

The image does not have a text description.

Technical Comment

The img element does not have an alt attribute.

Secondary Rules

Secondary Rule (WCAG 2.0 - February 2005 Editor's Draft)

The test case fails the following success criterion at line 10, column 23: http://www.w3.org/WAI/GL/WCAG20/WD-WCAG20-20050211/#4.1_use-spec-document-backward-compat-violations.

Functional Outcome

The image does not have a text description.

Technical Comment

The img element does not have an alt attribute and therefore does not validate.