Exam (elaborations)
WAS IAAP (1)
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Exam of 13 pages for the course SCS at SCS (WAS IAAP (1))
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WAS IAAPWCAG stands for - ANS-Web Content Accessibility Guidelines
Who develops WCAG - ANS-W3C (World Wide Web Consortium)
WCAG four principles of web accessibility - ANS-POUR
Perceivable
Operable
Understandable
Robust
Percievable - ANS-Information and the user interface must be presentable to users in ways
persons with disabilities can perceive (including blindness, low vision, deafness, and hearing
loss, limited movement, and cognitive limitations)
Operable - ANS-User interface components and navigation must be operable (functional from a
keyboard)
Understandable - ANS-Information and operation of user interface must be understandable
Robust - ANS-Content must be robust enough to be interpreted reliably by a wide variety of user
agents including assistive technology
Difference between WCAG 2.1 compared to WCAG 2.0 - ANS-Additional success criterion for
mobile devices (orientation, no horizontal scrolling, target size, pointer gestures, hover and
focus)
Input Modalities and autofill
Sufficient techniques - ANS-If it meets these techniques, it successfully meets the success
criterion
Failure techniques - ANS-If the web content matches any of these, it does not meet the success
criterion
Advisory techniques - ANS-Optional or conditional techniques may represent accessibility best
practices or possible ways of meeting the success criterion
What year was WCAG 2.0 created - ANS-2008
What year was WCAG 2.1 created - ANS-2018
, What does WAI-ARIA stand for - ANS-Web Accessibility Initiative (WAI) Accessible Rich Internet
Applications
Why was WAI-ARIA created - ANS-Created to increase the accessibility of content - dynamic
content in particular - for assistive technology users, such as screen reader users - it defines
attributes that can be added to standard HTML to define name role and values of elements
ATAG stands for - ANS-Authoring Tool Accessibility Guidelines
What does ATAG require - ANS-Requires authoring tools (HTML/ web editors, content
management systems, social media sites, blog commenting features, discussion forums, user
rating features - etc)
1. Have accessible user interface
2. Support production of accessible content
Normative documents - ANS-Define accessibility practices required for conformance (to a
specification)
Non-normative documents - ANS-Provide guidance and techniques for interpreting and
conforming with the normative requirements, but non-normative techniques are not required for
conformance
WCAG 2.1 was initiated with a goal to improve accessibility guidance for three major groups -
ANS-1. Users with cognitive or learning impairments
2. Users with low vision
3. Users with impairments on mobile devices
1. Perceivable 4 Categories - ANS-1.1 Text Alternatives
1.2 Time-Based Media
1.3 Adaptable
1.4 Distinguishable
2. Operable 5 Categories - ANS-2.1 Keyboard Accessible
2.2 Enough Time
2.3 Seizures and Physical Reactions
2.4 Navigable
2.5 Input Modalities
3. Understandable 3 Categories - ANS-3.1 Readable
3.2 Predictable
3.3 Input Assistance
4. Robust 1 Category - ANS-4.1 Compatible
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