The tips shown here will help you to design and deliver more accessible Canvas courses in ICON. For more on accessible course design, contact ITAccessibility@uiowa.edu.
- 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.
- ALT text is rewired for images used as links or buttons
- 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 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 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 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.
- 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.