(Continuation of Question 26/16) Motivation
The capability to handle different information media and control actions
varies within wide boundaries among users of telecommunications and multimedia
services. The variation may have a cause in age-related functional limitations,
in disabilities, and in other natural causes. With the ageing populations in
large parts of the world, many telecom users will have sensory and motor
limitations. It is important to meet this wide variety in capabilities in the
original design of telecommunication services so that an increasing number of
users can make benefit of the mainstream services. Legislation in many countries
is also beginning to follow the trend of requiring design for all in all forms
of communications services and communications devices.
Multimedia systems and services have great opportunities to provide valuable
and accessible information in a way that the individual user can control, if
care is taken from the beginning in inclusive design of these services, making
them accessible to as many users as possible.
The accessibility activities in SG 16 and its predecessors have created the
following documents:
- Recommendation V.18 for text telephony,
- Recommendation T.140 as the general presentation protocol for text
conversation,
- Recommendation T.134 for text conversation in the T.120 data conferencing
environment,
- Annex G to Recommendation H.323 for text conversation in H.323 packet
multimedia environment.
- Annex L to Recommendation H.324 for text conversation in low bit-rate
multimedia applications
- Recommendation F.703 – Multimedia conversation service description. Includes
definitions of the accessible conversational services
- H-series Supplement 1 – Application profile – Sign language and lip reading
real time conversation using low bit rate video communication
- Recommendation F.790 – Telecommunications accessibility guidelines for
older persons and persons with disabilities
- Technical Paper FSTP-TACL – Telecommunications Accessibility Checklist
Complemented by a number of additions to other Recommendations, the Total
Conversation concept was founded for conversation in video, text and voice as an
accessible superset of video telephony, text telephony and voice telephony.
It is the task of this Question to engage in standardization activities
leading to services and systems designed for all. Consideration should be given
to services in new generation networks with fixed as well as mobile features.
The group also has a task to promote and enhance accessibility as a normal
part of ITU work.
Study items
Study items to be considered include, but are not limited to:
- Sections on accessibility issues in relevant Recommendations, declaring how
inclusive design is achieved, as requested by the Geneva and Tunis World Summit
on the Information Society (WSIS) Phase I (2003) and II (2005), and by the
United Nations Convention on the Rights of Persons with Disabilities
- Support for wide performance limits in production, perception and control of
each medium in communication services to allow for maximum usability in
accordance with the principles of inclusive design. Specifically, study
profiling of the latest video coding standards to fulfil sign language and lip
reading needs at very low bit rates and in error prone environments
- Specification of interfaces on communication equipment to allow various forms
of user interface equipment to be attached in order to enable session and device
control and media handling by people with varying capabilities and preferences
(examples of what the interfaces should support include talking menus,
keyboards, pointing devices, listening and viewing devices, Braille and voice
call control, text conversation input and output, etc)
- Multimedia Services including mechanisms for transformation between different
media forms of the same content in order to adapt to the capabilities of end
users. Such mechanisms may be automatic, for example text-to-speech, or
performed by people, for example sign language interpretation
- Mechanisms for user selectable media, including its production, storage,
transport, presentation and logical linking
- Specification of accessible services using wireless telecommunication
technologies, and using wireless short range technologies for provision of
convenient accessible features on communications equipment
- Mechanisms for inter-working with mono-media services in an accessible way
(e.g. text telephony and voice telephony)
- Maintenance of the Total Conversation concept, and its inclusion in any new
multimedia conversation protocol
- Study the requirements on multimedia metadata from an accessibility point of
view to encourage inclusive design in this field
- Study emergency service access for people who need to communicate in other
media than voice, e.g. text, sign language, lip reading supported speech, etc
- Considerations on how to help measure and mitigate climate change
Tasks
Tasks include, but are not limited to:
- Coordination with other ITU-R, ITU-T and ITU-D study groups for fulfilment
of accessibility requirements in their Recommendations (ongoing)
- Coordination with other SDOs for fulfilment of accessibility requirements in
their specifications (ongoing)
- Promotion of Total Conversation defined in F.703 as a mainstream service
(ongoing)
- Develop guidance for implementers of interfaces between communication devices
and user interface devices
- Contribute to the continued harmonization and maintenance of the text
telephone service, for example when new technologies are specified for PSTN
transmission (ongoing)
- Create guidelines for the design of IP phones and IP communication systems for
the inclusion of accessibility features including text conversation, video and
alerting and maintain interoperability with legacy text telephones
- Develop specification in support of Total Conversation for disabilities beyond
the needs of the deaf
- Develop guidance for implementers of relay systems for deaf and
speech-impaired users
- Maintain the documents under the control of the Question.
An up-to-date status of work under this Question is found in the SG 16 work
programme (http://itu.int/ITU-T/workprog/wp_search.aspx?isn_sg=554).
Relationships
Recommendations:
- F.700, F.703, G.769/Y.1242, G.799.1/Y.1451.1, H.300-series, H.248, H.264,
V.18, V.150-series, T.140
Questions:
- All Questions of Study Group 16
Study Groups:
- ITU-T SG 2 on human factors
- ITU-T SG 9 on IP Cablecom
- ITU-T SG 12 on media quality
- ITU-T SG 13 on NGN and IPTV
- ITU-T SG 15 on access networks, for inclusive design in communication services
- ITU-D SG 1 on access to telecommunication services for people with
disabilities
- ITU-D SG 2 on development and management of telecommunication services and
networks and ICT applications
Other Bodies:
- IETF in general, and specifically the SIPPING, MMUSIC, and AVT groups
- 3GPP and 3GPP2 for mobile accessibility inclusion and co-ordination of text
telephony and total conversation related issues
- ETSI, particularly Technical Body HF (Human Factors)
- ISO/IEC JTC1 SWG-A (Special Working Group on Accessibility)
- Asia Pacific Telecommunity
- G3ict (Global Initiative for Inclusive ICTs)
- Internet Governance Forum
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