Results for Wikipedia / Mediawiki

Web 2.0 Service
Test Average: 76%
Updated 21 August 2009

Description

Wikipedia is an online encyclopædia that anyone can edit, to contribute their knowledge. There are many off-shoots such as Wikiquote, Wikitraveller and Wikiversity. Articles can hold rich media, including images animations and audio. Wikipedia and many other wikis are run on Mediawiki

Accessibility Testing Results

On the whole these web pages tend to be screen reader accessible and navigable with a keyboard. The registration may need an e-mail to the administrator. It should be noted that pages edited by the public are not necessarily very reader friendly as they have large amounts of text often with random links that when taken independently of the text may appear illogical. Depending on the user, tables and diagrams that are added may not always be accessible.

# Test Score Summary
1Login, Signup and Other Forms Accessible Good Captcha does not offer an alternative method, although users are welcome to contact the administrators of the site to request an account. The signup form is accessible and has the required form labels.
2Image ALT Attributes Fair Other than on the homepage, very few critical images have alternative text. This creates problems for users with screenreaders.
3Link Target Definitions Excellent All links, including images which would otherwise be ambiguous, have titles to uniquely identify them. Many links are provided within sentences.
4Frame Titles and Layout Excellent No frames or iframes, which can be disorientating for screen-readers, are used in the design.
5Removal of Stylesheet Excellent The page is still understandable and functional when it is viewed as a linear document, with no styles.
6Audio/Video Features Good Some articles have transcripts for audio and video and most images can be given a title as well as having alt. attributes. Users can add their own wiki-markup to enhance accessibility.
7Video/animations - audio descriptions Excellent It is possible to add audio and text to a wiki and users can add their own wiki-markup to enhance accessibility.
8Appropriate use of Tables Fair Data tables are used in many places on the site, but are not created using heading pages - screenreaders may have trouble interpreting the information.
9Tab Orderings Correct and Logical Good Tab order is generally in a logical and consistent top-to-bottom format, but not always left-to-right format. Tab order for tables and forms is logical.
10Page Functionality with Keyboard Excellent The website is fully accessible without the use of a mouse.
11Accessibility of Text Editors Good Only the form for editing pages uses a toolbar, but buttons are not used for creating rich text. The editing form is very rarely used. It is possible to tab into the editor and out again, although the toolbar can not be accessed in this way.
12Appropriate Feedback with Forms Good The feedback is fine, but sometimes difficult to distinguish from the rest of the page.
13Contrast and Colour Check Excellent No contrast issues as all sections have good luminosity contrast ratios.
14Page Integrity when Zooming Good The website maintains the layout and usability of all critical areas perfectly when zoomed, although some images may encounter issues in some browsers.
15Text size, style, blinking elements and Readability Good The majority of text on the site is size ten, which is readable but much of the menu system is a smaller font size. There is no flashing or blinking content. Sans-serif fonts are used throughout the body content.

Disability-Tailored Results

The following table shows how well the product performs for people with disabilities, as listed in the Disabilities section.

Percentages do not indicate how much of a site is accessible. They indicate the average figure of test results relevant to each disability. Select a disability to see which tests are relevant to it.

Disability Average Score
Colour Deficiencies89%
Partially Sighted and Visual Acuity84%
Cognitive Learning Disabilities81%
Specific Learning Differences (including Dyslexia)80%
Visual Stress78%
Dexterity/Mobility75%
Blind and Severe Visual Impairments75%
Deaf/Hard of Hearing67%

Activities you can do with Wikipedia / Mediawiki