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Re: Graphics contrast - critical principle

From: Alastair Campbell <acampbell@nomensa.com>
Date: Thu, 8 Dec 2016 15:34:59 +0000
To: "Bailey, Bruce" <Bailey@Access-Board.gov>
CC: "w3c-wai-gl@w3.org" <w3c-wai-gl@w3.org>
Message-ID: <C04DD79A-E183-48C9-9FF9-D0D44E57E9BF@nomensa.com>
Hi Bruce,

Thanks for the feedback on graphics contrast, and for letting me go on-list as I think others will be interested.

Bailey, Bruce wrote:
> I still think VR is an issue.  Would you be okay with adding virtual environments to the Captures category?  (FWIW, I am not sold on "Captures" as the best heading, but the idea is sound.)
I’m not sure that VR counts as a type of image, surely it is a different view (i.e. spherical) of the same types of image we can put on screen? A VR movie/game/world/experience could include video and photographs, but it could also include signs, subtitles, documents, menus, just about anything!

For example, check out this excellent article on VR accessibility if you haven’t seen it, especially the bit on visual impairment with some screenshots:

I think we need to consider VR a monitor alternative that could contain many types of content, and this SC should focus on the content.
I’m also not entirely happy with “captures”, but I couldn’t think of anything else to differentiate images that are captured from the real world, from graphics created to convey information. I was hoping the subtle and un-defined term ‘captures’ would just be a clue!

> I do not think you should define "graphical elements" because, by moving the exceptions into SC, it is not needed.  I know almost nothing about terminology in the artistic world, but my intuition is that the proposed glossary entry is too specialized to our needs.
I think we need to define the unit of testing, there needs to be some element on the screen that has to be seen & discerned separately from other elements in order to be understood. 

There was a notification of the “Graphics Accessibility API Mappings” getting approval this morning, and that defines graphical-objects and graphical-symbols:

I’ll see if we can either use, reference or reform that for use instead of ‘graphical element’, but I’m not sure if it quite maps yet.

Kind regards,


Received on Thursday, 8 December 2016 15:35:35 UTC

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