Robert Graves
B.Sc. Honours
Computer Science,
Brock University

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Guidelines:

• If your page contains audio, video or images that are vital in order for people to understand the content of your pages, provide text alternatives for them to read.
  • Users may not be able to hear the audio well
  • Users may not have the necessary hardware
  • Users may have a slow Internet connection and cannot download the video in reasonable time
• Use “relative sizing” of text
  • Don’t force text to be a certain size on a person’s screen.
  • Users can manually change the size of the text on their browser (“Smallest”, “Smaller”, “Medium”, “Larger”, “Largest”). If the text is forced to be a certain size, it overrides these settings.
  • People with poor vision often have the text size set to a larger setting in order to see the text on screen. Forcing text to be a certain size hinders this.
  • Note: By default, text on web pages use relative sizing.
• Don’t rely on colour alone to make your web page work.
  • The colour may not appear the same on another person’s computer screen
• If you are using a “special effect” (e.g. a cool enhancement to your site) on your web page, ensure that it works properly on different machines
• Use alternative text for images
  • This allows for some sort of text to appear when you hover over an image with your mouse.
  • This can provide an explanation as to what the image / button will do if you click on it.
• Provide clear navigation
  • Make sure it is clear how a person will navigate to different pages on your web site.
  • Don’t hide the different links or make the navigation confusing.
  • Use navigation links that are short and make sense to users. Avoid confusing terms.

Useful Resources
W3C Web Accessibility Initiative | WatchFire Bobby

Written and Created by Robert Graves, Copyright 2003