The Authoring Tool Accessibility Guidelines Working Group is chartered to maintain and support the Authoring Tool Accessibility Guidelines 1.0 W3C Recommendation, and develop ATAG 2, a second version of these authoring tools accessibility guidelines.

Chair: Jutta Treviranus
W3C Staff Contact: Jeanne Spellman

The mission of the group is to develop and maintain CSS.

Chairs: Daniel Glazman, Peter Linss
W3C Staff Contacts: Chris Lilley, Bert Bos

The mission of the W3C Compound Document Formats (CDF) Working Group is to continue to develop specifications which combine selected existing document formats from the W3C and elsewhere, and which specify the runtime behavior of such combined documents.

Chair: None
W3C Staff Contact: Doug Schepers

The mission of the Device APIs and Policy Working Group is to create client-side APIs that enable the development of Web Applications and Web Widgets that interact with devices services such as Calendar, Contacts, Camera, etc. Additionally, the group will produce a framework for the expression of security policies that govern access to security-critical APIs (such as the APIs listed previously).

Chairs: Robin Berjon, Frederick Hirsch
W3C Staff Contacts: Thomas Roessler, Dominique Hazaël-Massieux

The mission of the Education and Outreach Working Group (EOWG) is to develop strategies, and awareness and training resources, to educate a variety of audiences regarding the need for Web accessibility and approaches to implementing Web accessibility.

Chair: Shawn Henry
W3C Staff Contact: Shawn Henry

The main objective of the Efficient XML Interchange (EXI) Working Group is to develop a format that allows efficient interchange of the XML Information Set.

Chairs: Takuki Kamiya, Michael Cokus
W3C Staff Contact: Carine Bournez

The mission of the Evaluation and Repair Tools Working Group (ERT WG) is to develop techniques and resources to facilitate the evaluation and repair of Web sites with regard to their conformance to the Web Content Accessibility Guidelines 2.0, and to facilitate testing across all three WAI guidelines also including the Authoring Tool Accessibility Guidelines and User Agent Accessibility Guidelines.

Chairs: Shadi Abou-Zahra, Michael Squillace
W3C Staff Contact: Shadi Abou-Zahra

The mission of the Forms Working Group is to develop specifications to cover forms on the Web, producing a system that scales from low-end devices through to the enterprise level.

Chair: John Boyer
W3C Staff Contact: Steven Pemberton

The mission of the Geolocation Working Group is to define a secure and privacy-sensitive interface for using client-side location information in location-aware Web applications.

Chairs: Lars Erik Bolstad, Angel Machin
W3C Staff Contact: Matt Womer

The mission of the HTML Working Group is to continue the evolution of HTML (including classic HTML and XML syntaxes).

Chairs: Sam Ruby, Maciej Stachowiak, Paul Cotton
W3C Staff Contact: Michael(tm) Smith

The mission of the Internationalization Core Working Group is to enable universal access to the World Wide Web by proposing and coordinating the adoption by the W3C of techniques, conventions, technologies, and designs that enable and enhance the use of W3C technology and the Web worldwide, with and between the various different languages, scripts, regions, and cultures.

Chair: Addison Phillips
W3C Staff Contact: Richard Ishida

The mission of the Math Working Group is to facilitate and promote the use of the Web for mathematical and scientific communication. The main purpose of the Working Group is to improve and extend the functionality of the MathML 2.0 (Second Edition) Recommendation (W3C Recommendation, 21 October 2003) in light of several years of experience of large-scale deployment by many individuals and organizations.

Chairs: Patrick D F Ion, Robert Miner
W3C Staff Contact: Bert Bos

The mission of the Media Annotations Working Group is to provide an ontology designed to facilitate cross-community data integration of information related to media objects in the Web, such as video, audio and images.

Chairs: Soohong Daniel Park, Joakim Söderberg
W3C Staff Contact: Thierry Michel

The mission of the Media Fragments Working Group is to address temporal and spatial media fragments in the Web using Uniform Resource Identifiers (URI).

Chairs: Erik Mannens, Raphaël Troncy
W3C Staff Contacts: Thierry Michel, Yves Lafon

The mission of the Mobile Web Best Practices Working Group (BPWG) is to develop a set of technical best practices and associated materials in support of development of web sites that provide an appropriate user experience on mobile devices.

Chairs: Daniel Appelquist, Jo Rabin
W3C Staff Contacts: Dominique Hazaël-Massieux, François Daoust

The mission of the Multimodal Interaction Working Group is to develop open standards that enable the extension of the Web to allow multiple modes of interaction (GUI, speech, vision, pen, gestures, haptic interfaces, …) for anyone, anywhere, on any device, at any time.

Chair: Deborah Dahl
W3C Staff Contact: Kazuyuki Ashimura

The OWL Web Ontology Language is playing an important role in an increasing number and range of applications, and is the focus of research into tools, reasoning techniques, formal foundations and language extensions. The mission of the OWL Working Group is to produce a W3C Recommendation that refines and extends OWL.

Chairs: Ian Horrocks, Alan Ruttenberg
W3C Staff Contacts: Ivan Herman, Sandro Hawke

The mission of the Protocols and Formats Working Group (PFWG) (Member Confidential PFWG) is to increase the support for accessibility in Web specifications. This mission flows from the W3C mission of promoting universal access and interoperability across the Web.

Chair: Janina Sajka
W3C Staff Contact: Michael Cooper

The mission of the RDB2RDF Working Group is to standardize a language for mapping relational data and relational database schemas into RDF and OWL.

Chairs: Ahmed Ezzat, Michael Hausenblas
W3C Staff Contact: Harry Halpin

The mission of the RDFa Working Group is to support the developing use of RDFa for embedding structured data in Web documents in general. The Working Group will publish W3C Recommendations to extend and enhance the currently published RDFa 1.0 documents, including an API. The Working Group will also support the HTML Working Group in its work on incorporating RDFa in HTML5 and XHTML5 (as a followup on the the currently published Working Draft for RDFa 1.0 in HTML5).

Chairs: Ben Adida, Manu Sporny
W3C Staff Contact: Ivan Herman

The Working Group is to specify a format for rules, so they can be used across diverse systems. This format (or language) will function as an interlingua into which established and new rule languages can be mapped, allowing rules written for one application to be published, shared, and re-used in other applications and other rule engines.

Chairs: Christian de Sainte Marie, Christopher Welty
W3C Staff Contact: Sandro Hawke

The mission of the SOAP-JMS Binding Working Group is to produce a W3C Recommendation for how SOAP should bind to a transport that supports the Java™ Message Service (JMS) api by refining the “SOAP over Java™ Message Service 1.0” Member Submission. In the case of SOAP 1.2 this binding must use the SOAP Protocol Binding Framework defined by the XML Protocol Working Group.

Chair: Eric Johnson
W3C Staff Contact: Yves Lafon

The mission of the SPARQL Working Group is to develop SPARQL, the query language for the Semantic Web. The scope of its current charter is to extend SPARQL technology to include some of the features that the community has identified as both desirable and important for interoperability based on experience with the initial version of the standard.

Chairs: Lee Feigenbaum, Axel Polleres
W3C Staff Contacts: Ivan Herman, Sandro Hawke

The mission of the SVG Working Group is to continue the evolution of Scalable Vector Graphics as a format and a platform, and enhance the adoption and usability of SVG in combination with other technologies.

Chairs: Erik Dahlström, Cameron McCormack
W3C Staff Contacts: Doug Schepers, Chris Lilley

The mission of the SYMM Working Group is to continue W3C’s work on synchronized multimedia that started with SMIL 1.0, SMIL 2.0. Its main contribution is extending the functionality contained in the current SMIL 2.0 Recommendation.

Chairs: Dick Bulterman, Eric Hyche
W3C Staff Contact: Thierry Michel

The mission of the Timed Text Working Group is to produce a W3C Recommendation for media online captioning by refining the W3C specification Timed Text (TT) Authoring Format 1.0 — Distribution Format Exchange Profile (DFXP) based in implementation experience and interoperability feedback.

Chairs: Sean Hayes, David Kirby
W3C Staff Contact: Philippe Le Hégaret

The Ubiquitous Web Applications Working Group seeks to simplify the creation of distributed Web applications involving a wide diversity of devices, including desktop computers, office equipment, home media appliances, mobile devices (phones), physical sensors and effectors (including RFID and barcodes). This will be achieved by building upon existing work on device independent authoring and delivery contexts by the former DIWG, together with new work on remote eventing, device coordination and intent-based events.

Chair: Dave Raggett
W3C Staff Contact: Matt Womer

The mission of the User Agent Accessibility Guidelines Working Group is to produce guidelines for the development of accessible user agents: software that retrieves and renders Web content, including text, graphics, sounds, video, images, etc. In particular, the groups seeks to support the implementation of the User Agent Accessibility Guidelines 1.0 , and to collect requirements for a subsequent version of User Agent Accessibility Guidelines.

Chairs: Jim Allan, Kelly Ford
W3C Staff Contact: Jeanne Spellman

The mission of the Voice Browser Working Group is to enable users to speak and listen to Web applications by creating standard languages for developing Web-based speech applications. The Voice Browser Working Group concentrates on languages for capturing and producing speech and managing the dialog between user and computer, while a related Group, the Multimodal Interaction Working Group, concentrates on additional input modes including keyboard and mouse, ink and pen, etc.

Chairs: Jim Larson, Scott McGlashan
W3C Staff Contacts: Kazuyuki Ashimura, Matt Womer

The mission of the Web Applications (WebApps) Working Group is to provide specifications that enable improved client-side application development on the Web, including specifications both for application programming interfaces (APIs) for client-side development and for markup vocabularies for describing and controlling client-side application behavior.

Chairs: Charles McCathieNevile, Arthur Barstow
W3C Staff Contacts: Doug Schepers, Steven Pemberton

The mission of the Web Content Accessibility Guidelines Working Group is to develop guidelines to make Web content accessible for people with disabilities. In particular, the group is responsible for the Web Content Accessibility Guidelines 2.0 as a W3C Recommendation.

Chairs: Loretta Guarino Reid, Gregg Vanderheiden
W3C Staff Contact: Michael Cooper

The mission of the Web Security Context Working Group is to specify a baseline set of security context information that should be accessible to Web users, and practices for the secure and usable presentation of this information, to enable users to come to a better understanding of the context that they are operating in when making trust decisions on the Web.

Chair: Mary Ellen Zurko
W3C Staff Contact: Thomas Roessler

The mission of the Web Services Policy Working Group is to produce W3C Recommendations for Web Services Policy by refining the “WS-Policy” Member Submission, addressing implementation experience and interoperability feedback from the specifications, maximizing compatibility with existing policy assertions and considering composition with other components in the Web services architecture.

Chairs: Paul Cotton, Christopher Ferris
W3C Staff Contact: None

The mission of the Web Services Resource Access Working Group is to produce W3C Recommendations for a set of Web Services specifications by refining the WS-Transfer, WS-ResourceTransfer, WS-Enumeration, WS-MetadataExchange and WS-Eventing Member Submissions , addressing existing issues in those specifications, implementation experience and interoperability feedback from implementers and considering composition with other Web services standards. The submitted specifications define SOAP-based mechanisms for interacting with the XML representation behind a resource-oriented Web Service, accessing metadata related to that service, as well as a mechanism to subscribe to events related to that resource.

Chair: Robert Freund
W3C Staff Contact: Yves Lafon

The WebCGM Working Group is working on integrating some of the requirements that were identified but not included in the development of WebCGM 2.0 into a WebGGM 2.1 specification.

Chair: Lofton Henderson
W3C Staff Contact: Thierry Michel

The mission of the XHTML2 Working Group is to fulfill the promise of XML for applying XHTML to a wide variety of platforms with proper attention paid to internationalization, accessibility, device-independence, usability and document structuring. This mission includes providing an essential piece for supporting rich Web content that combines XHTML with other W3C work on areas such as math, scalable vector graphics, synchronized multimedia, and forms, in cooperation with other Working Groups.

Chair: Steven Pemberton
W3C Staff Contact: Steven Pemberton

The mission of the XML Core Working Group is to maintain and develop as needed core XML specifications.

Chairs: Paul Grosso, Norman Walsh
W3C Staff Contact: Henry S. Thompson

The XML Processing Model Working Group is defining XProc, an XML-based language that allows the creator of any given XML document to indicate that operations on that document should be performed in a specific order for a particular result, and if so, how to apply those operations.

Chair: Norman Walsh
W3C Staff Contact: Henry S. Thompson

The mission of the XML Query Working Group is to provide flexible query facilities to extract data from XML and virtual documents, such as contents of databases or other persistent storage that are viewed as XML via a mapping mechanism, on the Web.

Chair: Jim Melton
W3C Staff Contact: Liam Quin

The mission of the XML Schema Working Group is to maintain and enhance the XML Schema Definition Language, an XML vocabulary for defining document classes by specifying structural and non-structural constraints on documents. XML Schema is similar to, but more expressive than, the notation given in XML 1.0 and SGML for document type definitions.

Chair: David Ezell
W3C Staff Contact: Henry S. Thompson

The mission of the XML Security Working Group is to take the next step in developing the XML security specifications.

Chair: Frederick Hirsch
W3C Staff Contact: Thomas Roessler

The mission of the XSL Working Group is to define and maintain a practical style and transformation language capable of supporting the transformation and presentation of, and interaction with, structured information (e.g., XML documents) for use on servers and clients. The language is designed to build transformations in support of browsing, printing, interactive editing, and transcoding of one XML vocabulary into another XML vocabulary. To enhance accessibility, XSL is able to present information both visually and non-visually. XSL is not intended to replace CSS, but will provide functionality beyond that defined by CSS, for example, element re-ordering.

Chair: Sharon Adler
W3C Staff Contacts: Liam Quin, Carine Bournez