[Draft] Evaluation and Repair Tools Working Group (ERT WG) Charter

The mission of the Evaluation and Repair Tools Working Group (ERT WG), part of the WAI Technical Activity, is to develop techniques and resources to facilitate tool-supported evaluation and repair of websites (including web content, applications, and mobile websites) with regard to their conformance to the Web Content Accessibility Guidelines (WCAG). This includes all web technologies and technical domains addressed by WCAG. This mission is complementary to the work of other Web Accessibility Initiative (WAI) groups within the WAI Technical Activity and the WAI International Program Office Activity.

Join the Evaluation and Repair Tools Working Group.

End date 31 December 2017
Confidentiality Proceedings are Public.
Initial Chair Shadi Abou-Zahra (W3C)
Initial Team Contact
(FTE %: 10)
Shadi Abou-Zahra
Usual Meeting Schedule Teleconferences: Weekly
Face-to-face: None to twice annually


ERT WG's scope of work includes:

Consistent with W3C Process requirements on Task Forces, the ERT WG may form task forces composed of ERT WG participants or join other W3C task forces to carry out assignments when under the chartered scope of ERT WG. Any such task force must have a work statement (including objectives, communication, participation, and leadership) that has been announced on the ERT WG mailing list, approved by the ERT WG, and is available from the ERT WG home page. ERT WG task forces should produce requirements documents that outline the scope and expectations for work. Task forces may set up separate teleconferences and hold face-to-face meetings per the W3C process and with the approval of the ERT WG.

Success Criteria


W3C Technical Reports

Other Deliverables


W3C Recommendations

The following W3C Recommendations will be produced by ERT WG:

Specification FPWD WD LC CR PR Rec
Evaluation and Report Language (EARL) 1.0 Schema 9 September 2005 27 September 2006,
23 March 2007,
28 April 2009,
29 October 2009,
10 May 2011
Q4 2015 Q2 2016 Q4 2016 Q1 2017

Note: The group will document significant changes from this initial schedule on the group home page.

W3C Working Group Notes

The supporting EARL 1.0 W3C Working Group Notes (Evaluation and Report Language (EARL) 1.0 Guide, HTTP Vocabulary in RDF 1.0, Representing Content in RDF 1.0, and Pointer Methods in RDF 1.0) will be published together with the next publications of EARL 1.0 Schema as a full package.

The Working Group plans to publish Guide to Features of Web Accessibility Evaluation Tools as a W3C Working Group Note in January 2015 and update it annually as needed.


W3C Groups

ERT WG also intends to liaise with relevant W3C Groups, in particular for the development of EARL 1.0 and its supporting documents.


To be successful, the Evaluation and Repair Tools Working Group is expected to have 5 or more active participants for its duration. Effective participation to Evaluation and Repair Tools Working Group is expected to consume 4 hours per week for each participant. Participants of the Evaluation and Repair Tools Working Group will also allocate the necessary resources for building Test Suites for each specification.

Participants are reminded of the Good Standing requirements of the W3C Process.


This group participates in the WAI Coordination Group (WAI CG). In the event that Coordination Groups are discontinued under W3C Process, it will continue to coordinate directly with other WAI groups.

This group primarily conducts its work on the public mailing list public-wai-ert@w3.org (archive).

Information about the group (deliverables, participants, face-to-face meetings, teleconferences, etc.) is available from the Evaluation and Repair Tools Working Group home page.

Decision Policy

As explained in the Process Document (section 3.3), this group will seek to make decisions when there is consensus. When the Chair puts a question and observes dissent, after due consideration of different opinions, the Chair should record a decision (possibly after a formal vote) and any objections, and move on.

Patent Policy

This Working Group operates under the W3C Patent Policy (5 February 2004 Version). To promote the widest adoption of Web standards, W3C seeks to issue Recommendations 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.

About this Charter

ERT WG was originally chartered in 1998 and has been rechartered three times since then. This charter represents a continuation of the work done under the previous charters: charter of June 1998, charter of June 2001, charter of January 2005, and previous charter of July 2010.

This charter for the Evaluation and Repair Tools Working Group has been created according to section 6.2 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.

Primary changes in this charter include:

$Date: 2015-02-10 15:08:05 $ by $Author: shadi $