This Wiki page is edited by participants of the Cognitive and Learning Disabilities Accessibility Task Force. It does not necessarily represent consensus and it may have incorrect information or information that is not supported by other Task Force participants, WAI, or W3C. It may also have some very useful information.
Talk:Gap Analysis/Aging and Dementia
Cognitive Decline Due to Aging
Lisa Suggests think Cognitive Decline with Aging
- Text Size (default & controls)
Many people who are aging or have dementia require large text due to declining vision, including text in form input fields and other controls. WCAG 2: 1.4.4 - Resize Text (AA) Lisa: Comorbidity
- Text Style and Text Layout (default, options & controls)
Text style and its visual presentation impacts how hard or easy it is for people to read, especially older people with declining vision. WCAG 2: 1.4.8 - Visual Presentation (AAA)
Lisa: Really Important
- Color and Contrast (default, options & controls)
Most people who are aging or have dementia older experience color perception changes, and they lose contrast sensitivity. WCAG 2: 1.4.1 - Use of Color (A), 1.4.3 - Contrast (Minimum) (AA), 1.4.6 - Contrast (Enhanced) (AAA)
- Media Alternatives (default, options & controls)
Because many who are aging or have dementia may have hearing or vision that declines, they often need transcripts, captions, and low background sound.
- Support Text with Redundant Visual and Auditory Elements or Text-to-Speech (speech synthesis)(default, options & controls)
Some people who are aging or have dementia use text-to-speech (speech synthesis) software, which is becoming increasingly available in browsers, operating systems, appliances, automobiles and mobile devices.
Lisa: ??. Next to a symbol. Supported text inline for visual (not for text to speach)
- CAPTCHA (default, options & controls)
Older people with declining eyesight may not be able to discern the characters in a CAPTCHA, especially because CAPTCHAs often have low contrast and do not increase in size when users have text sized larger. Or, users with dementia may be confused by how to interact with the feature. CAPTCHA stands for 'Completely Automated Public Turing tests to tell Computers and Humans Apart'. WCAG 2: 1.1.1 - Non-text Content (A) includes a requirement for alternative CAPTCHAs
Many people who are aging or have dementia need links to be particularly clear and identifiable due to declining vision and cognition. WCAG 2: 2.4.4 - Link Purpose (In Context) (A), 2.4.9 - Link Purpose (Link Only) (AAA), 2.4.7 - Focus Visible (AA)
- Navigation and Location
Many people who are aging or have dementia need navigation to be particularly clear due to declining cognitive abilities.
It is difficult for some people who are aging or have dementia to use a mouse due to declining vision or dexterity. Mobile Web: Large Clickable Targets"
Some people who are aging or have dementia cannot use a mouse well or at all and instead use a keyboard.
Some people who are aging or have dementia cannot use a mouse or keyboard well or at all and instead use a touch screen. Mobile Web: Large Touch Targets"
Some people who are aging or have dementia cannot use a mouse, touch screen or keyboard well or at all and instead prefer a voice interface. ??: Clearly Labeled Targets"
Some people who are aging or have dementia are particularly distracted by any movement and sound on web pages.
- Sufficient Time
It takes some people who are aging or have dementia longer to read text and complete transactions due to declining vision, dexterity, and/or cognition.
- Page Organization
Many people who are aging or have dementia are inexperienced web users without advanced browsing habits and therefore read the whole page, so good page organization is important.
- Understandable Language
Many people who are aging or have dementia find it particularly difficult to understand complex sentences, unusual words, and technical jargon.
- Consistent Navigation and Labeling
For people who are new to the web, and people who are aging or have dementia with some types of cognitive decline, consistent navigation and presentation is particularly important.
- Pop-ups, Layovers, Widgets and New-Windows
Some people who are aging or have dementia and are experiencing cognitive decline can be confused or distracted by pop-ups, new windows, layovers, widgets or new tabs.
- Page Refresh and Content Updates
Some people who are aging or have dementia who have declining vision or cognition can miss content that automatically updates or refreshes in a page or screen.
- Instructions and Input Assistance
It is difficult for some people who are aging or have dementia to understand the requirements of forms, interactive elements and transactions.
- Error Prevention and Recovery
It is difficult for some people who are aging or have dementia to use forms and complete transactions due to declining cognitive abilities.
- Older Equipment and Software
Some people who are aging or have dementia will be using older browsers and devices that might not be as capable or fault tolerant as current technologies - or may be missing some of the customized and interactive content provided by newer technologies.