The tips shown here will help you to design and deliver more accessible Canvas courses in ICON. For more on accessible course design, visit ITAccessibility.uiowa.edu.

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ALT Text

  • ALT text is necessary. Provide descriptive ALT text with each image, regardless of document format.
  • ALT text is not to exceed 100 characters. If your ALT text is longer than 100 characters, create a link to a longer description from the image
  • ALT text must not be the filename of the image.

Tables

  • Data tables require header rows. Header rows define context for the individual data cells.
  • Header cells require SCOPE. SCOPE helps assistive technology (AT) to associate header and data cells.
  • Avoid using tables for layout or positioning. Layout tables add spoken information, and can be confusing and disorienting for AT users.

Links

  • Links require text. Links without text are meaningless to users of assistive technology.
  • For images used as links, ALT text is link text. Compose ALT text accordingly.
  • Link text must reflect purpose of link. Provide link text that is more robust than “Click Here”, “Learn More” or “GO”.

Headings

  • Headings add structure to your page. Use headings to introduce new sections or topics.
  • Ensure that headings contain text. Headings without text are meaningless to all users.
  • Do not skip heading levels. Users of assistive technology navigate documents by heading level.

Color

  • Color contrast is necessary for many learners; use a tool like Colour Contrast Analyzer to ensure sufficient contrast between background and foreground colors.
  • Do not use color alone to distinguish between options or objects. Help learners distinguish with additional properties like texture or shape.

Media

  • Digital media require captions (video) or transcript (audio)
  • Captions must be synchronized with timed media
  • If you recorded with a script, you already have a transcript. Sync it up for quick captions.