- From: Katie Haritos-Shea <ryladog@gmail.com>
- Date: Wed, 14 Feb 2018 00:39:49 -0500
- To: Matt King <a11ythinker@gmail.com>
- Cc: Becky Gibson <becky@knowbility.org>, Janina Sajka <janina@rednote.net>, Accessible Platform Architectures Administration <public-apa-admin@w3.org>
- Message-ID: <CAEy-OxEczYnK9u=7-YTWz-7BLDxxPb827gB3UsE--KP58M0YcQ@mail.gmail.com>
+1 On Feb 14, 2018 12:31 AM, "Matt King" <a11ythinker@gmail.com> wrote: > +1, I think this important for moving forward efficiently. > > > > *From:* Becky Gibson [mailto:becky@knowbility.org] > *Sent:* Monday, February 12, 2018 2:12 PM > *To:* Janina Sajka <janina@rednote.net> > *Cc:* Accessible Platform Architectures Administration < > public-apa-admin@w3.org> > *Subject:* Re: 48-Hour Call for Consensus (CfC): Standing permission to > publish Working Drafts of COGA Gap Analysis > > > > +1 I have no objections to publishing updated working drafts of the Gap > Analysis. > > > > Becky Gibson > > > > On Feb 12, 2018, at 1:10 PM, Janina Sajka <janina@rednote.net> wrote: > > > > Colleagues: > > This is a Call for Consensus (CfC) to the Accessible Platform > Architectures (APA) Working Group on a request from our Cognitive and > Learning Disabilities (COGA) Task Force for standing permission to > publish updated working drafts of their Gap Analysis. The FPWD of this > documented is here: > > https://www.w3.org/TR/2017/WD-coga-gap-analysis-20171207/ > > Note that the standing permission being requested applies only to > updated Working Drafts of this document. COGA understands it will need > explicit authorization from AG and APA before finalizing this document > as a W3C Note. > > COGA has further agreed to produce a list of substantial changes > to each version of the document published under this standing permission > grant. > > Please also recall that the COGA Task ForceF is a joint Task Force of AG-WG > and APA. A parallel CfC was conducted in the Accessible Guidelines > (AG-WG) Working Group, though we failed to conduct our APA CfC on this > question in the same timeframe as AG-WG--as had been our intent. > > https://lists.w3.org/Archives/Public/w3c-wai-gl/2018JanMar/1126.html > > APA members who are also AG members and who responded to the AG CfC on > this question should ALSO respond here. > > * ACTION TO TAKE > > This CfC is now open for objection, comment, as well as statements of > support via email. Silence will be interpreted as support, though > messages of support are certainly welcome. > > If you object to this proposed action, or have comments concerning this > proposal, please respond by replying on list to this message no later > than 23:59 (Midnight) Boston Time, Sunday 18 February. > > Janina > > ------------------------------------------------------------ > ------------------ > > Janina Sajka > > Linux Foundation Fellow > Executive Chair, Accessibility Workgroup: http://a11y.org > > The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) > Chair, Accessible Platform Architectures > http://www.w3.org/wai/apa > > Here is my proposed feedback to the Timed Text Working Group: > > > > <draft-feedback> > > > > 1. While we appreciate that TTML Profiles for Internet Media Subtitles > and Captions 1.1 <https://www.w3.org/TR/ttml-imsc1.1/> is depending on Timed > Text Markup Language 2 (TTML2) <https://www.w3.org/TR/ttml2/>, it > should still include an introduction that guides the reader to a better > understanding of its content. Such an introduction could respond to the > following questions: > > > 1. Why are profiles needed for text-only and image-only > captions/subtitles? > 2. What are typical use cases for a image-only captions/subtitles? > 3. What is the purpose of a presentation processor, and a > transformation processor? > > > > 1. There is a general issue with the way that an author specifies > layout characteristics of captions and subtitles, such as font size, font > family, line height, background and positioning. The spec describes the > approach of the author specifying a “fixed layout” for captions and > subtitles that the user cannot change. However, it must be possible for > the user to overwrite the author’s choice of font size, or background > color, for example. This is necessary for accessibility reasons, in the > same way that browsers allow the user to change font size and background > color. How can we find a good solution for these conflicting interests > between author and user? We would like to get into a discussion with you > on this issue. > > > > 1. Section 2 Documentation Conventions (applies also to Timed Text > Markup Language 2 (TTML2) <https://www.w3.org/TR/ttml2/> section 2.3). > For accessibility of the spec, information such as whether an element is > deprecated or obsoleted should not be indicated by color (or background > color) alone (cf. WCAG 2.0 SC 1.4.1 > <https://www.w3.org/WAI/WCAG20/quickref/#visual-audio-contrast-without-color> > ). > > > > 1. Section 5.1 General. The method of associating a text profile > document instance with an image profile document instance should be > specified for interoperability reasons, and not be left open to the > specific implementation. Also, the association should be in both ways, > i.e. also from the image profile document instance to the text profile > document instance. > > > > 1. Section 6 Supported Features and Extensions. All font-related > features are prohibited for the image profile. This seems to be an > unnecessary restriction if the image profile contains images in SVG format > which could be rendered differently based on the author’s choice of font > characteristics. > > > > 1. Section 7.7.3 itts:forcedDisplay. This seems like a temporary > solution. Wouldn’t it be better to define semantic layers of information > that each could be made visible and invisible at runtime as appropriate for > the user? For example, the user may want to see either speech-only > (subtitles), narration speech only (parts of subtitles), foreign-language > speech-only (parts of subtitles) or any combination of them. > > > > 1. Section 7.7.4 itts:altText. While we see this feature as useful > for accessibility purposes, it should be mandatory for images rather than > recommended only. As mentioned in the spec, one could take the pertaining > text passage from the text profile document instance – but (1) an > accompanying text profile is not required, and (2) the alternative text for > the image could be different from the textual caption. Therefore, the > itts:altText element should always be specified, but it should be empty for > decorative images (not clear if a “decorative image” used as a caption > makes sense anyway). By requiring an itts:altText for every image, but > allowing for an empty element in case of a decorative image, we would align > it with the alt attribute in HTML5 for images. > > > > </draft-feedback> > > > > Best regards, > > Gottfried > > > > -----Ursprüngliche Nachricht----- > Von: Accessible Platform Architectures Working Group Issue Tracker [ > mailto:sysbot+tracker@w3.org <sysbot+tracker@w3.org>] > Gesendet: Mittwoch, 18. Oktober 2017 09:29 > An: public-apa@w3.org > Betreff: apa-ACTION-2152: Review ttml profiles for internet media > subtitles and captions 1.1 https://www.w3.org/tr/ttml-imsc1.1/ > > > > apa-ACTION-2152: Review ttml profiles for internet media subtitles and > captions 1.1 https://www.w3.org/tr/ttml-imsc1.1/ > > > > http://www.w3.org/WAI/APA/track/actions/2152 > > > > Assigned to: Gottfried Zimmermann > > >
Received on Wednesday, 14 February 2018 05:45:18 UTC