Web and TV Interest Group Charter

The mission of the Web and TV Interest Group, part of the Web and TV Activity, is to provide a forum for Web and TV technical discussions, to review existing work, as well as the relationship between services on the Web and TV services, and to identify requirements and potential solutions to ensure that the Web will function well with TV.

Join the Web and TV Interest Group.

End date 28 February 2013
Confidentiality Proceedings are Public.
Initial Chairs
  • FUNAHASHI Yosuke - Tomo-Digi
  • KAWAMORI Masahito - NTT
  • Giuseppe PASCALE - Opera Software
  • HyeonJae Lee - LG Electronics
  • Mark Vickers - Comcast
Initial Team Contacts
(FTE %: 20)
Kazuyuki Ashimura, Philipp Hoschka
Usual Meeting Schedule Teleconferences: Teleconferences may be held as necessary
Face-to-face: As necessary up to 3 per year


The Web and TV Interest Group's scope of work covers audio-visual content, e.g., broadcasting programs and Web pages, and related services delivered by satellite and terrestrial broadcasting, or via cable services, as well as delivery through IP.

The tasks the Interest Group will undertake include:


Success Criteria

We have succeeded if we can achieve the following:


The primary deliverables of the Web and TV Interest Group are recommendations for work items to ensure that the Web and TV can function in a complementary and cooperative way on TV devices and TV-like devices.

In addition the group will review and comment on documents generated by the other W3C groups; and raise issues that relate to the mission of the Interest Group.

The first deliverable for the group is to classify the topics suggested during the "Web on TV" workshop (Tokyo, September 2010) into the following four categories:

  1. Topics that should be done by a new Working Group.
  2. New requirements for existing Working Groups. The IG should make sure that the right requirements get passed to the right Working Groups.
  3. Work that is satisfactorily done outside W3C and has industry-wide consensus. We should document this for the record but should not try to re-create existing standards within W3C.
  4. Work items, where it is unclear where they should be done.

If a further workshop on the topic is held (or a face-to-face meeting of the Interest Group), then we should do the same categorization for items identified there as high priority.

The group may also develop a W3C Note describing the conceptual relationship between Web and TV, especially the architectural relationship between the services on Web and the TV services.


The Interest Group should deliver a preliminary set of work recommendations by 31 March 2011 based on the results of the W3C Web on TV workshop held in Tokyo, Japan, in September 2010, and input provided to the Interest Group. These can take the form of requirements presented to existing W3C Working Groups, and / or proposed new work requiring a new Working Group to be chartered.

Timelines for review of work from other groups will depend on the deliverables from those groups being available. Participants in this group should expect between two and four weeks to review relevant deliverables.

Dependencies and Liaisons

W3C Groups

The Web and TV IG provides a forum for review and discussion of draft deliverables from many W3C groups. Among the most important groups are likely to be:

Device APIs and Policy WG
APIs for TV related features/devices
Geolocation WG / Points of Interest WG
Position detection of users and devices
Hypertext Coordination Group
The Interest Group will participate in the Hypertext Coordination Group where inter-group coordination happens. There are various technologies related to TV/Web integration that are done by existing W3C groups, and it is essential for the group's work to be close cooperation with other groups.
HTML as user interface for TV
Internationalization Core WG
Global service for TV
Multimodal Interaction WG
Multimodal/Multi-device integration for TV and CE devices
Semantic Web Activity
Metadata for device capability/user preference
Scalable vector graphics for user interface for TV
Synchronizing multiple devices/contents
Video in the Web Activity
Identifying and handling part of video contents for TV
Voice Browser WG
Speech interface and dialog control for TV
Protocols and Formats Working Group
Review of accessibility support in Web and TV
User Agent Accessibility Guidelines Working Group
Accessibility of user interface to Web and TV controls
Web Applications WG
APIs for TV capabilities/functionalities

External Groups

There are a number of external groups important to the TV industry, or working in related areas regarding the Web and TV. The Interest Group should determine whom to communicate with and maintain communication with them. For example, the following groups are likely to be important:

A private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the US.
The Advanced Television Systems Committee (ATSC) provides standards for digital television transmission over terrestrial, cable, and satellite networks.
ARIB STD-B24: Broadcast Markup Language (BML) is a standard presentation language for digital television sets and has been used for years for various bi-directional/interactive TV programs and social services in Japan. BML consists of existing Web standards, e.g., XHTML, CSS, DOM and ECMAScript, and was used the basis of ITU-T's LIME.
Cable Television Laboratories, Inc. (CableLabs) is a non-profit research and development consortium that has cable operators as its members, and works for requirements for new technologies and new services.
The Consumer Electronics Association (CEA) is the trade organization for the consumer electronics industry in the US, which promotes U.S. consumer technology industry through technology policy, events, research, promotion and the fostering of business and strategic relationships. CEA sponsors the annual International Consumer Electronics Show (CES).
DECE (A.k.a UltraViolet)
The Digital Entertainment Content Ecosystem (DECE LLC) is a consortium of major Hollywood studios, consumer electronics manufacturers and retailers, network hardware vendors, systems integrators and Digital Rights Management (DRM) vendors.
Open standards and widely available industry specifications for entertainment devices and home network
DVB Project
An industry-led consortium of broadcasters, manufacturers, network operators, software developers, regulatory bodies and others in over 35 countries committed to designing open technical standards for the global delivery of digital television and data services.
Work on human factors and command vocabularies
Work on harmonizing the broadcast and broadband delivery of entertainment to the end consumer through connected TVs and set-top boxes. Products and services using the HbbTV standard can operate over different broadcasting technologies, such as satellite, cable or terrestrial networks.
IPTV Forum Japan
Work on IPTV services. Developing and maintaining standards related to data transmission and reception needed to provide open IPTV services.
ITU-T's work includes Multimedia Application Framework for IPTV services. For example, H.762: Lightweight interactive multimedia framework for IPTV services (LIME) gives a subset of HTML, CSS and ECMAScript for use in IPTV terminals.
An open standards organization which develops and promotes Internet standards, cooperating closely with the W3C and ISO/IEC standards bodies and dealing in particular with standards of the TCP/IP and Internet protocol suite.
Work on development, convergence and adoption of e-business and web service standards. Its technical work includes Web Services, e-Commerce, Security, Law & Government, Supply Chain, Computing Management, Application Focus, Document-Centric, XML Processing, Conformance/Interop, and Industry Domains.
Open IPTV Forum
Work on end-to-end standardization of TV relates services (like broadcast and VoD) and services rendered on TV, PC and mobiles devices. Especially, the Declarative Application Environment (DAE) TF works for the web platform and the requirements like JavaScript API and embedded video objects for support of broadcast and VoD TV services.
YouView (formerly known as Project Canvas)
Work on open, Internet-connected television platform in the UK. Expected to let consumers access to a range of third-party services (television channels, radio stations, on-demand services and internet content) using a compliant device (such as a set-top box) built to a common technical standard and through a broadband internet connection.
The Wholesale Applications Community (WAC) is an organization that creates a unified and open platform to allow mobile software developers to more easily write applications usable on a variety of devices, operating systems and networks.

(This is not intended as an exhaustive list, but illustrative of groups working on related technologies)


Participation is open to W3C Members and invited experts. Effective participation in the Web and TV Interest Group is expected to consume one work day per week for each participant.

In order to make rapid progress, the group MAY form several task forces, each working on a separate topic. The group members may participate in one or more task forces.

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


This group primarily conducts its technical work on the public mailing list at public-web-and-tv@w3.org (archive). See W3C mailing list and archive usage guidelines. There is also a member-only list to be used for administrative purposes at member-web-and-tv@w3.org (archive).

Information about the group (documents under review, face-to-face meetings, etc.) is available from the Web and TV Interest Group home page.

Decision Policy

Consistent with its mission, this group is not a decision-making body, but rather provides a forum for discussion and advice on different topics relating to the Web and TV.

Where there is consensus among the representatives of W3C members in the group, it will be forwarded as a consensus position. Where the group does not reach agreement, the different positions (whether held by W3C members or other members of the group) will be forwarded together, with any decisions to be made by a relevant working group according to its processes.

All technical resolutions made by a meeting of the group are provisional until two weeks after being published to the mailing list. An objection made on the mailing list within two weeks of publishing a decision has the same standing as if it were made at the meeting.

Patent Disclosures

The Web and TV Interest Group provides an opportunity to share perspectives on the topic addressed by this charter. W3C reminds Interest Group participants of their obligation to comply with patent disclosure obligations as set out in Section 6 of the W3C Patent Policy. While the Interest Group does not produce Recommendation-track documents, when Interest Group participants review or propose work for Recommendation-track specifications from Working Groups, the patent disclosure obligations do apply.

For more information about disclosure obligations for this group, please see the W3C Patent Policy Implementation.

About this Charter

This charter 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.

This charter was updated with the following changes:

This charter was extended through 28 February 2013 on 12 December 2012.

Charter authors: Charles McCathieNevile, Kazuyuki Ashimura, Yosuke Funahashi

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