Silver XR
Silver and Emerging Technology Accessibility [May 2020] by Joshue O Connor
One of the core benefits of WCAG is in raising awareness around different user needs. This is something that could be incorporated into WCAG 3.0 regardless of whether these become techniques or the basis for functional performance criteria or other requirements. The following are based on the current draft are XR Accessibility User Requirements (XAUR)
#2.1 Incoming calls and caller ID
NOTES: Could this be linked with messaging via system level alerts and notifications? Could status polling etc be mapped to system level notifications?
https://www.w3.org/TR/raur/#incoming-calls-and-caller-id
#2.2 Routing and communication channel control
Does this require access to browser plumbing? Or could it be arguably a user interface thing? In that users can choose to turn of images and use only text if they choose, or modify or zoom an interface. It is arguable that being able to customise audio routing preferences is a similar form of customisation.
https://www.w3.org/TR/raur/#routing-and-communication-channel-control
#2.8 Distinguishing sent and received text with RTT
This is important for deaf and hard of hearing users. Requires support for RTT in an application
https://www.w3.org/TR/raur/#distinguishing-sent-and-received-text-with-rtt
#2.9 Call participants and Polling status
https://www.w3.org/TR/raur/#call-participants-and-status
#2.13 Internet relay chat (IRC) style interfaces required by blind users
https://www.w3.org/TR/raur/#internet-relay-chat-irc-style-interfaces-required-by-blind-users
Low hanging?
Support for dynamic captioning/ signing of live content. NOTE: I think the challenges of yesterday are still relevant today. In terms of content authors making the effort to make Live or streamed content accessible via signing etc.
2.5 Simultaneous voice, text & signing This is technically possible now. https://www.w3.org/TR/raur/#simultaneous-voice-text-signing
2.14 Deaf users: Video resolution and frame rates https://www.w3.org/TR/raur/#deaf-users-video-resolution-and-frame-rates
There are also other quality related items in the XAUR document - that may or may not be relevant to WCAG 3.0. It is arguable that quality requirements are generic. However, there are cases where there is an imperative as quality issues can be critical when relating to the needs of people with disabilities.