Miscellaneous Flashcards
What is a platform for Usability testing by live disabled users?
Loop11
What percentage of accessibility issues can be found through automated testing?
About one-third
True or False: The purpose of links must always be conveyed through the link text itself.
False
Is ARIA a programming language?
No
How can you notify a user of new content without employing any Javascript?
Reload the page
What is the difference between captions and subtitles?
Captions are intended for the deaf/hard-of-hearing, and subtitles are intended for language translation.
What are captions?
Text-based versions of audible content synchronized for the hard-of-hearing
What is an additional benefit of captions beyond accessibility?
SEO
What is the difference between captions and transcripts?
Transcripts are text-based versions of both audible and visual content that include not only dialog but also include important sound effects and visual cues (something like a script)
What type of user can only benefit from transcripts?
deafblind
What are audio descriptions?
A recording of a person explaining the visual aspects of the video that aren’t in the video’s original dialog or narration
What is an extended audio description?
A audio description where video is paused in order to provide a more extended description of the action.
What types of media MUST have captions for AA conformance?
- Pre-recorded multimedia
- Live multimedia
What type of media MUST have transcripts for AA conformance?
- Pre-recorded audio-only
What types of media MUST have audio descriptions for AA conformance?
- Pre-recorded multimedia
- Pre-recorded video-only
Is sign language ever required (MUST) for AA conformance?
No. It’s a MUST only to meet AAA for pre-recorded multimedia, and otherwise is a MAY
How long is an video which plays automatically allowed to continue before a method must be provided to stop it?
5 seconds
What is the maximum frequency that an animated image can flash or flicker before it’s considered an epilepsy risk?
3 times per second
What tool can evaluate epilepsy risk for a site?
Rastor vs Vector images – which maintains clarity when scaled?
Vector images
Is it possible to programmatically detect Windows High Contrast Mode?
Yes
Media queries in Edge/IE or Javascript color change detection
Are PDFs natively accessible?
No
Must tag for accessibility
Are EPUB files natively accessible?
Yes
What EPUB format should be used for maximum accessibility?
EPUB 3
What is the mimimum amount of time that a caption should remain onscreen?
1 second
What is the max number of lines that a caption SHOULD have?
3
What is the maximum number of characters per line that a caption SHOULD have
32
What is the minimum font size a caption SHOUD use?
22pt
What SHOUD be the minimum gap between captions?
1.5 seconds
Should image maps be rendered client-side or server-side?
Client-side whenever possible
How should a browser be set to test reflow on zoom?
Testing vertical scroll: 320 CSS pixels = viewport width of 1280 CSS pixels wide at 400% zoom.
Testing horizontal scroll: 256 CSS pixels = viewport height of 1024px at 400% zoom.
What tool can simulate low vision?
NoCoffee Vision Simulator for Firefox
