Note. For information about accessible interfaces,please consult the User Agent Accessibility Guidelines ([WAI-USERAGENT]) and the Authoring ToolAccessibility Guidelines ([WAI-AUTOOL]). Checkpoint:8.1 Make programmatic elements such as scripts and applets directly accessible or compatible with assistive technologies [Priority 1 if functionality is important and not presented elsewhere, otherwise Priority 2.]Refer also to guideline 6.Techniques for checkpoint 8.1Guideline 9. Design for device-independence. Use features that enable activation of page elements via avariety of input devices.Device-independent accessmeans that the user may interact with the user agent or documentwith a preferred input (or output) device -- mouse, keyboard, voice,head wand, or other. If, for example, a formcontrol can only be activated with a mouse or other pointing device,someone who is using the page without sight, with voice input, or witha keyboard or who is using some other non-pointinginput device will not be able to use the form.Note. Providing text equivalents for image maps orimages used as links makes it possible for users to interact with themwithout a pointing device. Refer also to guideline 1.Generally, pages that allow keyboard interaction arealso accessible through speech input or a command line interface. Checkpoints:9.1 Provide client-side image maps instead of server-side image maps except where the regions cannot be defined with an available geometric shape. [Priority 1]Refer also to checkpoint 1.1, checkpoint 1.2,and checkpoint 1.5.Techniques for checkpoint 9.19.2 Ensure that any element that has its own interface can be operated in a device-independent manner. [Priority 2]Refer to the definition of device independence.Refer also to guideline 8.Techniques for checkpoint 9.29.3 For scripts, specify logical event handlers rather than device-dependent event handlers. [Priority 2]Techniques for checkpoint 9.39.4 Create a logical tab order through links, form controls, and objects. [Priority 3]For example, in HTML, specify tab order via the"tabindex" attribute or ensure a logical page design.Techniques for checkpoint 9.49.5 Provide keyboard shortcuts to important links (including those in client-side image maps), form controls, and groups of form controls. [Priority 3]For example, in HTML, specify shortcutsvia the "accesskey" attribute.Techniques for checkpoint 9.5Guideline 10. Use interim solutions. Use interim accessibility solutionsso that assistive technologies and older browsers will operatecorrectly.For example, older browsers do not allow users tonavigate to empty edit boxes. Older screen readers read lists ofconsecutive links as one link. These active elements are thereforedifficult or impossible to access. Also, changing the current windowor popping up new windows can be very disorienting to userswho cannot see that this has happened.Note. The following checkpoints apply until user agents(including assistivetechnologies) address these issues. These checkpoints areclassified as "interim", meaning that the Web Content GuidelinesWorking Group considers them to be valid and necessary to Webaccessibility as of the publication of thisdocument. However, the Working Group does not expect thesecheckpoints to be necessary in the future, once Web technologies haveincorporated anticipated features or capabilities.
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