- From: Joshue O Connor <joconnor@w3.org>
- Date: Thu, 29 Aug 2019 10:57:52 +0100
- To: RQTF <public-rqtf@w3.org>
- Cc: "group-apa-chairs@w3.org" <group-apa-chairs@w3.org>
- Message-ID: <eb87974c-c60b-175b-a0e6-c17e54dbcb6e@w3.org>
Hi all,
We had a very productive call yesterday in RQTF on what should be
contained in the XAUR document. Concerns were raised that we are not
trying to create any kind of normative standard, and we will continue
the discussion around how XAUR relates to FAST, WCAG 2.x and work in Silver.
Jason, expressed the concern that right now, authors and devs really
have no-where to go to get any substantive advise on with what user
needs in XR may be or how to need them.
So I've a suggestion to float to the group. We currently have a useful
section that outlines some of the user needs in XR, in a rather clear
way - grouped under headings like education, gaming, health etc. [1]
My vision for the following section was where there would be modules
relating to XR Semantics (where objects role,state, properties etc are
described), Navigation, Interaction etc.
This would be a good place for generic advise on how to approach making
these areas accessible and addressing some of the user needs that are
outlined in the first part of the doc. They could be written as
informative checklist/ indicators that could help the reader get to
grips with what is needed, but doesn't have to be exhaustive or definitive.
For example, there are some items I've started to draft for media in XR,
a few months ago - and I used the MAUR as a template - here are some
examples for accessible Media in XR that I've drafted.
Navigating ancillary content
* [CN-XR-1] Provide a means to structure media resources so that users
can navigate them by semantic content structure. Support keeping all
media alternatives synchronized when users navigate.
Described Video in XR
* [DV-XR-1] Provide an indication that descriptions for video are
available, and details on their status (active/non-active).
* [DV-XR-2] Render descriptions in a time-synchronized manner, using
the primary media resource as the timebase master, ensure tracking
between descriptions is maintained.
* [DV-XR-3] Support multiple description tracks (e.g., discrete tracks
containing different levels of detail).
* [DV-XR-4] Support recordings of high quality speech, or video audio,
as a track of the media resource, or as an external file.
* [DV-XR-5] Allow the author to independently adjust the volumes and
panning of the audio description and original soundtracks where
these are available as separate audio channel resources.
The full current draft can be found here. [2]
For the XAUR I've removing some of the informative paragraphs just to
make this more readable.
So if we take that approach with say the XR Navigation, some of the
initial checkpoints could be:
*XR Navigation*
Movement Model
[MV-XR-1] Provide a means to map all functionality to a users preferred
settings.
[MV-XR-2] Ensure the user can make a move or action without having to
physically emulate that movement or action. Each movement and action
should have an alternative, or an alternative mapping to a control
etc
Use of sounds
[MV-XR-3] Provide a means that audio describes sounds within a game.
[MV-XR-4] Ensure the user understand any speech or dialogue within a
game, by modifying background music or game dynamics to their preference.
etc
Haptics
[MV-XR-5] Ensure haptics reflect correct game feedback and are
synchronised with audio game dynamics.
etc
Location
[MV-XR-6] Ensure the user can find their location within a game or other
immersive environment easily.
etc
Orientation
[MV-XR-7] Ensure the user can find their location of other players,
targets etc within a game - without compromising game dynamics easily.
etc
Ok, so that's an initial stab at it and to indicate an option - and I
look forward to feedback on this idea. How to you feel about this
suggested checklist approach?
I do hear the need for something that authors and devs can actually
refer to.
Thanks
Josh
[1] https://www.w3.org/WAI/APA/wiki/Xaur_draft#XR_User_Needs
[2] https://www.w3.org/WAI/APA/wiki/Media_in_XR
--
Emerging Web Technology Specialist/Accessibility (WAI/W3C)
Received on Thursday, 29 August 2019 09:57:56 UTC