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Web Accessibility John Rochford Rich Caloggero UMMS Shriver Center
Director, INDEX Program Rich Caloggero WGBH National Center for Accessible Media MIT Adaptive Technology Information Center
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Introductions Names Backgrounds
Experiences related to people with disabilities using the web (or computers in general)
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Simple Definition Web accessibility means that people with disabilities can use the Web Source: World Wide Web Consortium Web accessibility applies to design & content
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Importance provides equal access and opportunity
helps people participate in society is required by laws and policies benefits people without disabilities Source: World Wide Web Consortium
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Making the Web Accessible
Assistive tech compatibility: screen readers, single-switch devices, text-to-speech, etc. Web software has to be accessible: browsers; media players; development tools; content and learning management systems
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Making Your Website Accessible
Easy and low cost if done from beginning. Fixing later requires significant effort and costs. Source: World Wide Web Consortium
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Evaluating Website Accessibility
Automated evaluation tools can catch most-common web or app accessibility problems. Tenon, WAVE, etc. People with disabilities must test a web site or app to determine it is actually accessible.
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How To Evaluate Websites
Is there alternative (alt) text for images? Are there content headings? Is the content (tab) order logical? Use a free, web-based tool to check Tenon, WAVE, etc.
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U.S. Laws Starts with Section 504, Rehab Act of 1973.
Section 508 of Rehab Act, as amended in 1998, requires all electronic and information technologies be accessible. Source: U.S. Health and Human Services
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Standards U.S. Federal Section508.gov World
Established in 2000 Synced to world standards on January 12, 2017 World WCAG 2.0 (As of December, 2008)
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WCAG 2 Principles Perceivable - Information and user interface components must be presentable to users in ways they can perceive. Operable - User interface components and navigation must be operable. Understandable - Information and the operation of user interface must be understandable. Robust - Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies. Source: World Wide Web Consortium
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Using the Web How do people with disabilities use the web…
without a keyboard? without a mouse? without speakers? without a monitor? Job Access With Speech (JAWS) demo
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Accessible Content Almost all accessible websites focus on design.
Many pay no attention to semantic markup: headings, lists, bold-versus-strong, etc. Examples of what they do not use: plain language multi-modal presentation default large print (& responsive design)
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Cognitive Web Accessibility
Clinical Cognitive Disabilities learning disabilities, intellectual disabilities, TBI, ASD, Schizophrenia, Alzheimer’s, depression, aging, etc. Functional Cognitive Disabilities cannot understand non-simple, textual content are easily distracted are flummoxed by inconsistent interfaces do not recover easily from errors
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Cognitive Accessibility Resources
W3C Cognitive Accessibility Task Force Clear Helper Web Site Blog Twitter Web AIM Articles Cognitive Web Accessibility Checklist
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Summary Websites should be Perceivable, Operable, Understandable, Robust (POUR) Accessibility can be easy & low cost Making websites accessible makes them easy to use for everyone
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