Segment 2: Web Standards & Accessibility Ted Drake, Yahoo Accessibility Lab Slideshare.net/7mary4
What does an Accessible Site Designed with Web Standards Look Like?
Topics Features of an accessible site designed with Web Standards? Beyond the blind When web standards is not enough Mobile Users
Is your standards-based web site accessible?
Maybe
Web Standards Foundation
Solid Versatile Semantic Data Device Independent
Static
Dynamic
New Visual & Auditory Concerns Expandable content Editable text Drag and Drop Gestures Closed Captions Regularly updated content Dialogue boxes Keyboard focus control
Drag and Drop Provide non-mouse alternative
Expandable Content Button for expand/contract Place focus into expanded area Tell user the container can be expanded
Video Accessibility
Live Regions Define regions of the page that update automatically. Should the screen reader user get a notification every time it changes?
Cognitive and Physical Concerns Memory loss Different cognitive levels of understanding content. What helps some will distract others Dyslexia Keyboard navigation Voice recognition
Voice Recognition Dragon Naturally Speaking Images with text must have matching alt text. Don’t autofocus form elements Avoid multiple links to different URLs with the same text.
Keyboard Navigation
Avoid long sentences Avoid large blocks of text Avoid justified alignment Give the user white space Dyslexie: font designed for dyslexia Dyslexie
Mobile Browsers and Accessibility
New Device Same Accessibility Concerns
iPhone and iPad Full featured VoiceOver Safari browser supports HTML5, CSS3, JavaScript Custom gestures will conflict with VoiceOver. No Flash support
Android, Blackberry, Nokia Screen reader is available, but not as sophisticated as VoiceOver Use clean, structural markup for better performance Android’s browser is full featured. Blackberry and Nokia are not as robust.
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