Guidelines for Web Accessibility - Priority 1

Following priority 1 will make it possible for all groups to use the site. For some groups, this is the basic requirement to enable them to access the information.

1.1 Provide a text equivalent for every non-text element

Explanation and help for non-text elements

1.2 Ensure that information does not rely on colour perception

Explanation and help for information conveyed with colour

1.3 Avoid causing the screen to flicker

Explanation and help for flickering and screen flicker

1.4 Provide an auditory description of the visual information in multimedia presentations

Explanation and help for multimedia and auditory description

1.5 For multimedia, ensure that timing of alternative descriptions is synchronised with the presentation

Explanation and help for multimedia and synchronised equivalent alternatives

1.6 Use the clearest and simplest language appropriate

Explanation and help for clear and simple language

1.7 Identify language changes in text

Explanation and help for natural language

1.8 Ensure that equivalents for dynamic content are updated when the dynamic content changes

Explanation and help for dynamic content equivalents

1.9 For data tables, identify row and column headers

Explanation and help for data tables with row and column headers

1.10 For complex data tables, use mark-up to associate data cells and header cells

Explanation and help for data tables with logical levels

1.11 Add titles to frames

Explanation and help for frames

1.12 Ensure that documents can be read without style sheets

Explanation and help for ensuring that documents can be read without style sheets

1.13 Provide text links to emulate server-side image maps

Explanation and help for images and image maps

1.14 Use client-side image maps rather than server-side image maps where possible

Explanation and help for client-side and server-side image maps

1.15 Ensure that scripts and applets that provide the only source of important functionality are directly accessible or compatible with assistive technologies

Explanation and help for Ensuring scripts and applets are accessible

1.16 Ensure that pages are usable without support for scripts, applets, or other programmatic objects

Explanation and help for ensuring pages are usable without programmatic objects

1.17 If you cannot make a page accessible, provide an equivalent accessible page

Explanation and help for alternative pages