SIST-V ETSI/EG 204 061 V1.1.1:2026

ETSI GUIDE
Human Factors (HF);
ETSI Accessibility Strategy;
Accessibility of ETSI Deliverables and Improvement
of the Development Process of Deliverables

2 ETSI EG 204 061 V1.1.1 (2025-10)

Reference
DEG/HF-00301566
Keywords
accessibility, usability
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
and/or governmental rule and/or regulation and further, no representation or warranty is made of merchantability or fitness
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2025.
All rights reserved.
ETSI
3 ETSI EG 204 061 V1.1.1 (2025-10)
Contents
Intellectual Property Rights . 5
Foreword. 5
Modal verbs terminology . 6
Executive summary . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Basic assumptions . 9
4.1 Characteristics and abilities of users and content creators of ETSI deliverables . 9
5 Important recommendations to enhance the accessibility of ETSI deliverables . 10
5.1 Overview . 10
5.2 Recommendations and Guidelines . 11
5.2.1 Colour. 11
5.2.2 Missing alt text . 13
5.2.3 Diagrams / Pictures . 13
5.2.4 Tables . 15
5.2.5 Text properties and coding . 17
5.2.6 References . 19
5.2.7 Acronyms and capitalized text . 20
5.2.8 Document properties . 22
6 Authors'/content creators' requirements with respect to the accessibility of ETSI deliverables and
the development process of accessible documents . 23
6.1 Overview . 23
6.2 Requirements of authors/content creators of ETSI deliverables . 23
6.2.1 Introduction . 23
6.2.2 Requirements on instructions and training . 23
6.2.3 Requirements related to tools for creating accessible deliverables . 24
6.2.4 Requirements on the editing/publishing processes . 25
6.2.5 Concluding remarks . 25
6.3 SDOs and their approach to creating accessible standards documents . 26
6.3.1 General . 26
6.3.2 CEN/CENELEC . 26
6.3.3 DIN. 26
6.3.4 ITU . 26
6.3.5 IEEE . 27
6.3.6 IEC . 27
6.3.7 Canadian Standards Organization (Accessibility Standards Canada) . 27
6.3.8 ACM. 27
6.3.9 Concluding Remarks . 27
7 User-centred analysis of the accessibility and usability of ETSI deliverables . 28
7.1 Overview . 28
7.2 Requirements of blind users and those with low vision . 28
7.2.1 General . 28
7.2.2 Requirements. 28
7.3 Requirements of deaf users and those with hearing impairments . 30
ETSI
4 ETSI EG 204 061 V1.1.1 (2025-10)
7.3.1 General . 30
7.3.2 Requirements. 31
7.4 Requirements of mobility-impaired users . 31
7.4.1 General . 31
7.4.2 Requirements. 31
7.5 Requirements of users with cognitive or intellectual disabilities . 32
7.5.1 General . 32
7.5.2 Requirements. 32
7.6 Requirements of users with multiple impairments . 32
8 Recommendations for accessible and usable ETSI deliverables and solution proposals to
implement these recommendations . 33
8.1 Overview . 33
st
8.2 Proposals and solutions - 1 phase . 33
8.2.1 Content creation by authors . 33
8.2.2 Document preparation by ETSI . 35
8.2.3 Document production by ETSI. 36
nd
8.3 Recommendations for implementation - 2 phase . 37
8.3.1 Content creation by authors . 37
8.3.2 Document preparation by ETSI . 37
8.3.3 Document production by ETSI. 38
rd
8.4 Proposals for implementation - 3 phase . 38
8.4.1 Introduction .
...

SLOVENSKI STANDARD
01-januar-2026
Človeški dejavniki (HF) - Strategija dostopnosti ETSI - Dostopnost dokumentov
ETSI in izboljšanje postopka njihovega pripravljanja
Human Factors (HF) - ETSI Accessibility Strategy - Accessibility of ETSI Deliverables
and Improvement of the Development Process of Deliverables
Ta slovenski standard je istoveten z: ETSI EG 204 061 V1.1.1 (2025-10)
ICS:
33.040.01 Telekomunikacijski sistemi Telecommunication systems
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI GUIDE
Human Factors (HF);
ETSI Accessibility Strategy;
Accessibility of ETSI Deliverables and Improvement
of the Development Process of Deliverables

2 ETSI EG 204 061 V1.1.1 (2025-10)

Reference
DEG/HF-00301566
Keywords
accessibility, usability
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
and/or governmental rule and/or regulation and further, no representation or warranty is made of merchantability or fitness
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2025.
All rights reserved.
ETSI
3 ETSI EG 204 061 V1.1.1 (2025-10)
Contents
Intellectual Property Rights . 5
Foreword. 5
Modal verbs terminology . 6
Executive summary . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Basic assumptions . 9
4.1 Characteristics and abilities of users and content creators of ETSI deliverables . 9
5 Important recommendations to enhance the accessibility of ETSI deliverables . 10
5.1 Overview . 10
5.2 Recommendations and Guidelines . 11
5.2.1 Colour. 11
5.2.2 Missing alt text . 13
5.2.3 Diagrams / Pictures . 13
5.2.4 Tables . 15
5.2.5 Text properties and coding . 17
5.2.6 References . 19
5.2.7 Acronyms and capitalized text . 20
5.2.8 Document properties . 22
6 Authors'/content creators' requirements with respect to the accessibility of ETSI deliverables and
the development process of accessible documents . 23
6.1 Overview . 23
6.2 Requirements of authors/content creators of ETSI deliverables . 23
6.2.1 Introduction . 23
6.2.2 Requirements on instructions and training . 23
6.2.3 Requirements related to tools for creating accessible deliverables . 24
6.2.4 Requirements on the editing/publishing processes . 25
6.2.5 Concluding remarks . 25
6.3 SDOs and their approach to creating accessible standards documents . 26
6.3.1 General . 26
6.3.2 CEN/CENELEC . 26
6.3.3 DIN. 26
6.3.4 ITU . 26
6.3.5 IEEE . 27
6.3.6 IEC . 27
6.3.7 Canadian Standards Organization (Accessibility Standards Canada) . 27
6.3.8 ACM. 27
6.3.9 Concluding Remarks . 27
7 User-centred analysis of the accessibility and usability of ETSI deliverables . 28
7.1 Overview . 28
7.2 Requirements of blind users and those with low vision . 28
7.2.1 General . 28
7.2.2 Requirements. 28
7.3 Requirements of deaf users and those with hearing impairments . 30
ETSI
4 ETSI EG 204 061 V1.1.1 (2025-10)
7.3.1 General . 30
7.3.2 Requirements. 31
7.4 Requirements of mobility-impaired users . 31
7.4.1 General . 31
7.4.2 Requirements. 31
7.5 Requirements of users with cognitive or intellectual disabilities . 32
7.5.1 General . 32
7.5.2 Requirements. 32
7.6 Requirements of users with multiple impairments . 32
8 Recommendations for accessible and usable ETSI deliverables and solution proposals to
implement these recommendations . 33
8.1 Overview . 33
st
8.2 Proposals and solutions - 1 phase . 33
8.2.1 Content creation by authors . 33
8.2.2 Document preparation by ETSI . 35
8.2.3 Document prod
...