90 likes | 117 Views
Accessibility. CSSE 376, Software Quality Assurance Rose-Hulman Institute of Technology April 16, 2007. Acknowledgements. W3C Web Accessibility Initiative www.w3.org/WAI. Example Disabilities (1/2). Visual Blindness Low vision Color blindness Hearing Deafness Hard of hearing
E N D
Accessibility CSSE 376, Software Quality Assurance Rose-Hulman Institute of Technology April 16, 2007
Acknowledgements • W3C Web Accessibility Initiative www.w3.org/WAI
Example Disabilities (1/2) • Visual • Blindness • Low vision • Color blindness • Hearing • Deafness • Hard of hearing • Physical disabilities • Motor disabilities
Example Disabilities (2/2) • Speech disabilities • Cognitive and neurological disabilities • Dyslexia • Attention Deficit Disorder • Intellectual impairments • Memory impairments • Mental health disabilities • Seizure disorders • Multiple disabilities
Assistive Technologies • Alternative keyboards or switches • Braille and refreshable Braille • Scanning software • Screen magnifiers • Screen readers • Speech recognition • Tabbing through structural elements • Text browsers • Voice browsers
Example Scenarios • Online shopper with color blindness • Reporter with repetitive stress injury • Deaf student • Blind accountant • Dyslexic student with ADD • Retiree with aging conditions • Cognitive disability • Deaf-blindness
Accessibility Guidelines (1/3) • Provide equivalent alternatives to auditory and visual content. • Don't rely on color alone. • Use markup and style sheets and do so properly. • Clarify natural language usage. • Create tables that transform gracefully.
Accessibility Guidelines (2/3) • Ensure that pages featuring new technologies transform gracefully. • Ensure user control of time-sensitive content changes. • Ensure direct accessibility of embedded user interfaces. • Design for device-independence. • Use interim solutions.
Accessibility Guidelines (3/3) • Use W3C technologies and guidelines. • Provide context and orientation information. • Provide clear navigation mechanisms. • Ensure that documents are clear and simple.