Web Assistive Technology
Examples include:
- Alternative
Keyboard
- Alternative
Mouse
- Refreshable
Braille Display
- Screen
Magnifier
- Screen
Reader
Examples of Screen Magnifiers/Screen Readers:
- Zoom
Text by AI Squared - screen magnifying software that makes computers accessible/friendly
to low-vision users.
- JAWS by Freedom Scientific - popular screen reading software. Uses internal speech
synthesizer and computer's sound card to read info from computer screen aloud.
-
Window
Eyes - a Windows screen reader for Microsoft Office applications as well
as the web.
- FireVox – a screenreader extension for the FireFox web Browser
How screen readers read a web page
- Screen readers announce the page title (the <title> attribute in
the HTML markup).
- Screen readers pause for periods, semi-colons, commas, question marks,
and explanation points.
- Screen readers generally pause at the end of paragraphs.
- Screen readers try to pronounce acronyms and nonsensical words if they
have sufficient vowels/consonants to be pronounceable; otherwise, they spell
out the letters.
- When reading words letter by letter, JAWS distinguishes between upper
case and lower case letters by shouting/emphasizing the upper case letters.
- Screen readers will read the alt text of images, if alt text is present.
JAWS precedes the alt text with the word "graphic." If the image
is a link, JAWS precedes the alt text with "graphic link."
- Screen readers ignore images without alt text.
- If the image without alt text is a link, screen readers will generally
read the link destination.
- Screen readers can announce headings. JAWS, for example, precedes <h1> headings
with "heading level 1."
- Some screen readers announce the number of links on a page as soon as the
page finishes loading in the browser.
- JAWS says "same page link" if the link destination is on the
same page as the link itself.
- Screen readers in table navigation mode (users have to activate this mode)
inform the user how many rows and columns are in a table.
- Users can navigate in any direction from cell to cell in table navigation
mode. If the table is marked up correctly, the screen reader will read the
column and/or row heading as the user enters each new cell.
- Screen readers inform users when they have entered into a form. Users have
the option to enter form navigation mode.
WCAG 2.0 | Demo of Web Assistive
Technology