Accessible Platform Architectures Working Group Charter

The mission of the Accessible Platform Architectures Working Group is to ensure W3C specifications provide support for accessibility to people with disabilities. The group advances this mission through review of W3C specifications, development of new specifications and technical support materials, collaboration with other Working Groups, and coordination of harmonized accessibility strategies within W3C.

Join the Accessible Platform Architectures Working Group.

Start date 11 August 2021
End date 31 July 2023
Chairs
  • Matthew Atkinson (TPGi)
  • Janina Sajka (Invited Expert)
Team Contacts Ruoxi Ran (0.25 FTE Primary TC), Michael Cooper (0.30 FTE TC [external funds]), Joshue O Connor (0.80 FTE for RQTF [external funds]), Judy Brewer (0.10 FTE for RQTF [external funds])
Meeting Schedule Teleconferences: The Working Group and its Task Forces generally each hold weekly teleconferences, but this may vary over time according to agenda and preferences.
Face-to-face: The Working Group generally meets during the W3C's annual Technical Plenary week; additional face-to-face meetings may be scheduled by consent of the participants, usually no more than 3 per year.

Scope

Out of Scope

The following features are out of scope, and will not be addressed by this Working group.

  • Engineering accessibility solutions for technologies in scope of other W3C groups.
  • Addressing accessibility of technologies that do not interact with web content.

Deliverables

More detailed milestones and updated publication schedules are available on the group publication status page.

Draft state indicates the state of the deliverable at the time of the charter approval. Expected completion indicates when the deliverable is projected to become a Recommendation, or otherwise reach a stable state.

Horizontal Reviews

This Working Group performs horizontal review to help ensure web technologies meet the needs of users with disabilities. In support of this, it produces the following Technical Report:

Framework for Accessible Specification of Technologies (FAST)

This specification will provide personalization semantics and vocabularies that can be used to annotate web content enabling user agents to augment or adapt content to various user scenarios based on the user’s personalization settings or preferences.

Draft state: Editors’ Draft

Expected completion: Q4 2023

The Working Group also produces the following materials as part of horizontal review:

Engagement in horizontal review activity is tracked in:

Normative Specifications

The Working Group will deliver the following W3C normative specifications:

Personalization Semantics Content Module

This specification will provide personalization semantics and vocabularies that can be used to annotate web content enabling user agents to augment or adapt content to various user scenarios based on the user’s personalization settings or preferences.

Draft state: Working Draft

Expected completion: Q4 2023

Adopted Working Draft: Personalization Semantics Content Module 1.0, https://www.w3.org/TR/2020/WD-personalization-semantics-content-1.0-20200127/, 27 January 2020

Reference Draft: Personalization Semantics Content Module 1.0, https://www.w3.org/TR/2018/WD-personalization-semantics-content-1.0-20180316/, 16 March 2018. Exclusion period began 13 February 2018; Exclusion period ended 13 July 2018.

Produced under Working Group Charter: https://www.w3.org/2015/10/aria-charter.html. This deliverable was initially published by the Accessible Rich Internet Applications Working Group and is being moved to the Accessible Platform Architectures Working Group.

Personalization Semantics Help and Support Module

This specification will provide use cases and a vocabulary of terms that can be used to enhance alternative or supportive content that may be useful for people with disabilities.

Draft state: Working Draft

Expected completion: Q2 2024 (CR)

Adopted Working Draft: Personalization Help and Support 1.0, https://www.w3.org/TR/2019/WD-personalization-semantics-help-1.0-20190711/, 11 July 2019

Reference Draft: Personalization Help and Support 1.0, https://www.w3.org/TR/2018/WD-personalization-semantics-help-1.0-20181018/, 18 October 2018. Exclusion period began 18 October 2018; Exclusion period ended 18 March 2018.

The Working Group may publish additional Personalization Semantics modules during the course of this charter, and may work with other groups to incorporate personalization features into the native features of web technologies, instead of or in addition to the above work.

Pronunciation Technical Approach

This specification will provide for proper pronunciation in HTML content when using text to speech (TTS) synthesis and define a standard mechanism to allow content authors to include spoken presentation guidance in HTML content.

Draft state: Editor's Draft

Expected completion: Q1 2024

Other Deliverables

Other non-normative documents may be created such as:

Timeline

Detailed milestones and updated publication schedules are available on the group publication status page.

  • June 2021: CR of Personalization Semantics Content Module
  • April 2023: PR of Personalization Semantics Content Module
  • December 2023: Rec of Personalization Semantics Content Module
  • July 2024: CR of Personalization Semantics Help and Support Module
  • June 2021: FPWD of Pronunciation Technical Approach
  • December 2023: CR of Pronunciation Technical Approach

Success Criteria

In order to advance to Proposed Recommendation, each normative specification is expected to have at least two independent implementations of every feature defined in the specification.

Each specification should contain separate sections detailing all known security and privacy implications for implementers, Web authors, and end users. Each specification should contain a section on accessibility that describes the benefits and impacts, including ways specification features can be used to address them, and recommendations for maximising accessibility in implementations.

There should be testing plans for each specification, starting from the earliest drafts. To promote interoperability, all changes made to specifications should have tests.

Coordination

For all specifications, this Working Group will seek horizontal review for accessibility, internationalization, performance, privacy, and security with the relevant Working and Interest Groups, and with the TAG. Invitation for review must be issued during each major standards-track document transition, including FPWD. The Working Group is encouraged to engage collaboratively with the horizontal review groups throughout development of each specification. The Working Group is advised to seek a review at least 3 months before first entering CR and is encouraged to proactively notify the horizontal review groups when major changes occur in a specification following a review.

Additional technical coordination with the following Groups will be made, per the W3C Process Document:

W3C Groups

Accessibility Guidelines (AG) Working Group
Coordinate on development of techniques and general content accessibility issues.
ARIA Working Group
Coordinate on resolution of architectural issues identified by ARIA and meeting user needs identified by APA.
CSS Working Group
Coordinate on general CSS accessibility topics.
EPub 3 Working Group
Coordinate on accessibility in digital publishing.
HTML Working Group
Coordinate on general HTML and web API accessibility topics.
Internationalization Working Group
Coordinate how to address accessibility and internationalization in W3C specs.
SVG Working Group
Coordinate on general graphics accessibility topics.
Timed Text Working Group
Ensure Media Accessibility User Requirements are met in TTML and WebVTT.
WAI Interest Group
Engage in specification review and research activity.
Web Real-Time Communications Working Group
Ensure Media Accessibility User Requirements are met in WebRTC.
Web Payments Working Group
Coordinate on accessibility of payments.

External Organizations

IETF
Coordinate on protocols that impact accessibility of web content.
ISO/IEC JTC 1/SC 35 User interfaces
Coordinate user interface requirements and applicability to web content.
ITU (International Telecommunications Union)
Coordinate accessibility of real-time communications.
WHATWG
Coordinate on accessibility of web technologies.

Participation

To be successful, this Working Group is expected to have 6 or more active participants for its duration, including representatives from the key implementors of this specification, and active Editors and Test Leads for each specification. The Chairs, specification Editors, and Test Leads are expected to contribute half of a working day per week towards the Working Group. There is no minimum requirement for other Participants.

The group encourages questions, comments and issues on its public mailing lists and document repositories, as described in Communication.

The group also welcomes non-Members to contribute technical submissions for consideration upon their agreement to the terms of the W3C Patent Policy.

Participants in the group are required (by the W3C Process) to follow the W3C Code of Ethics and Professional Conduct.

Communication

Technical discussions for this Working Group are conducted in public: the meeting minutes from teleconference and face-to-face meetings will be archived for public review, and technical discussions and issue tracking will be conducted in a manner that can be both read and written to by the general public. Working Drafts and Editor's Drafts of specifications will be developed in public repositories and may permit direct public contribution requests. The meetings themselves are not open to public participation, however, except by explicit one-time invitation from the chair(s).

Information about the group (including details about deliverables, issues, actions, status, participants, and meetings) will be available from the Accessible Platform Architectures Working Group home page.

This group primarily conducts its technical work public-apa@w3.org (archive) and GitHub. Additional communication channels are also used. The public is invited to review, discuss and contribute to this work.

The group may use a Member-confidential mailing list for administrative purposes and, at the discretion of the Chairs and members of the group, for member-only discussions in special cases when a participant requests such a discussion.

Decision Policy

This group will seek to make decisions through consensus and due process, per the W3C Process Document (section 3.3). The Working Group maintains specific procedures to establish and measure consensus and address objections in the Accessible Platform Architectures Working Group Decision Policy. All decisions made by the group should be considered resolved unless and until new information becomes available or unless reopened at the discretion of the Chairs or the Director.

This charter is written in accordance with the W3C Process Document (Section 3.4, Votes) and includes no voting procedures beyond what the Process Document requires.

Patent Policy

This Working Group operates under the W3C Patent Policy (Version of 15 September 2020). To promote the widest adoption of Web standards, W3C seeks to issue Web specifications that can be implemented, according to this policy, on a Royalty-Free basis. For more information about disclosure obligations for this group, please see the W3C Patent Policy Implementation.

Licensing

This Working Group will use the W3C Document license for Recommendation-track deliverables and the W3C Software and Document license for Note-track deliverables and licensed non-TR publications.

About this Charter

This charter has been created according to section 5.2 of the Process Document. In the event of a conflict between this document or the provisions of any charter and the W3C Process, the W3C Process shall take precedence.

Charter History

The following table lists details of all changes from the initial charter, per the W3C Process Document (section 5.2.3):

Charter Period Start Date End Date Changes
Initial Charter 22 October 2015 31 July 2018 none
Rechartered 08 August 2018 31 July 2021

Changes from the previous charter (diff from previous charter):

  • Added Personalization Semantics as a Rec-track deliverable, transferred from the ARIA Working Group;
  • Increased work on non-normative resources to support accessibility horizontal review;
  • Clarified participation and communication procedures;
  • Added licensing section to specify the W3C Document license for Recommendation-track deliverables and the W3C Software and Document license for others;
  • Increased staff effort from .4 FTE to .7 FTE to provide additional support for Research Questions Task Force and accessibility horizontal review, and because of the new Personalization Semantics deliverable.
Staff change 19 April 2019 Joshue O Connor replaced Shadi Abou-Zahra with .05 FTE staff support.
New Co-Chair 25 June 2020 Becky Gibson joined Janina Sajka as co-chair of the Working Group.
Rechartered 11 August 2021 31 July 2023 Changes from the previous charter (diff from previous charter):
  • Added Pronunciation as an explicit deliverable;
  • Simplified Scope;
  • Updated Process and Patent Policy versions.
Chairs change 4 January 2022 Matthew Atkinson is appointed as new co-Chair of the Working Group; Becky Gibson stepped down as co-Chair.
Staff change 11 March 2022 Ruoxi Ran take the primary Team Contact of the Working Group.

Work in the scope of this group was, before the previous charter, carried out by the Protocols and Formats Working Group.