ISO/IEC 30113-60:2020

INTERNATIONAL ISO/IEC
STANDARD 30113-60
First edition
2020-10
Information technology — Gesture-
based interfaces across devices and
methods —
Part 60:
General guidance on gestures for
screen readers
Technologies de l'information — Interfaces gestuelles entre dispositifs
et méthodes —
Partie 60: Recommandations générales relatives aux gestes pour les
lecteurs d'écran
Reference number
ISO/IEC 30113-60:2020(E)
©
ISO/IEC 2020

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ISO/IEC 30113-60:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO/IEC 2020 – All rights reserved

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ISO/IEC 30113-60:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Guidance . 2
4.1 General . 2
4.2 Guidance on syntax . 2
4.2.1 Time . 2
4.2.2 Number of POI . 3
4.2.3 Path . 3
4.2.4 Closed gesture . 3
4.3 Guidance on semantics . 3
4.3.1 Denotation . 3
4.3.2 Consistency . 3
4.3.3 Learnability . 3
4.4 Guidance on evaluation . 3
4.4.1 Feedback . 3
4.4.2 Feedforward . 4
4.4.3 Customization. 4
4.4.4 Cultural sensitivity . 4
4.4.5 Tolerance . 4
5 Common functions across screen readers . 5
5.1 General . 5
5.2 Functions . 5
5.2.1 Reading aloud an item under a POI . 5
5.2.2 Activation of a selected item . 5
5.2.3 Movement of a POI to a next or a previous application . 5
5.2.4 Movement of a POI to a next or a previous page . 5
5.2.5 Movement of a POI to a next or a previous item . 5
5.2.6 Starting/stopping a current activity . 5
5.2.7 Pausing/resuming speech . 6
5.2.8 Turning on and off a screen curtain . 6
5.2.9 Starting a help function of a screen reader . 6
TM
Annex A (informative) Gestures for screen readers of Apple® VoiceOver , Google®
TM TM TM
TalkBack , Samsung® Voice Assistant and Orange® MenuDfA .7
Bibliography . 9
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ISO/IEC 30113-60:2020(E)

Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that
are members of ISO or IEC participate in the development of International Standards through
technical committees established by the respective organization to deal with particular fields of
technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with ISO and IEC, also
take part in the work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents) or the IEC
list of patent declarations received (see http:// patents .iec .ch).
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For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 35, User interfaces.
A list of all parts in the ISO/IEC 30113 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
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ISO/IEC 30113-60:2020(E)

Introduction
Even if users with visual impairments utilize the same hardware as sighted users, it is possible that
they will prefer to use different gestures, or to perform the same gestures differently from the sighted
users. Sighted users can also perform gestures differently when they lack visual feedback.
Users with visual impairments experience problems in understanding shapes or outlines of gestures
for ICT devices, even though they appear simple to sighted users. The critical problem is basically visual
information and feedback from ICT devices. Therefore, it is necessary to provide special gestures for
users with visual impairments.
Screen readers support their users in identifying and understanding content displayed on a screen
of an ICT device. The information about the content is read back to the users out loud by the screen
readers which might utilize text–to–speech or braille output devices. While sighted users visually scan
and understand the content of the screen, the users with visual impairments utilize screen readers
to understand the content. The screen is generally composed of page regions, headings, navigation
elements, text links, images, etc. It is necessary for users of screen readers to identify the elements and
navigate the pages. Therefore, specially designed gestures of screen readers are required. The gestures
need to be standardized for the users of screen readers.
This document provides a general guidance on the standard gestures for screen readers running on
various ICT devices. The gestures are primarily utilized by the users of screen readers when they
interact with ICT devices. Annex A provides descriptions about specific instances of the gestures for
screen readers.
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INTERNATIONAL STANDARD ISO/IEC 30113-60:2020(E)
Information technology — Gesture-based interfaces across
devices and methods —
Part 60:
General guidance on gestures for screen readers
1 Scope
This document provides general guidance on gestures for screen readers running on various ICT
devices. The document does not define or require specific technologies for recognizing the gestures. It
focuses on descriptions of gestures and functions for screen readers running on ICT devices.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
gesture command
instruction to the system resulting from a gesture input by the user, e.g. select, move, delete
[SOURCE: ISO/IEC 30113-1:2015, 3.3]
3.2
screen reader
function that reads the characters and other information on the screen aloud to the user to allow access
to the information on screen without viewing the screen
[SOURCE: ISO/IEC 24786:2009, 4.11]
3.3
point of interest
POI
specific point location that a user utilizes to formulate a gesture
Note 1 to entry: A POI is used by a user to interact with an object on a screen and does not need to be a specific
location on an object. It could be located anywhere on an object.
[SOURCE: ISO/IEC 30113-11:2017, 3.1, modified — Note 1 to entry added.]
3.4
closed gesture
gesture of which its starting point and its ending point coincides
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ISO/IEC 30113-60:2020(E)

3.5
learnability
degree to which a product or system can be used by specified users to achieve specified goals of
learning to use the product or system with effectiveness, efficiency, freedom from risk and satisfaction
in a specified context of use
Note 1 to entry: Can be specified or measured either as the extent to which a product or system can be used by
specified users to achieve specified goals of learning to use the product or system with effectiveness, efficiency,
freedom from risk and satisfaction in a specified context of use, or by product properties corresponding to
suitability for learning as defined in ISO 9241-110.
[SOURCE: ISO/IEC 25010:2011, 4.2.4.2]
3.6
accessibility
extent to which products, systems, services, environments and facilities can be used by people from a
population with the widest range of user needs, characteristics and capabilities to achieve identified
goals in identified contexts of use
Note 1 to entry: Context of use includes direct use or use supported by assistive technologies.
[SOURCE: ISO 9241-112:2017, 3.15]
3.7
path-based gesture
gesture which starts from a start point and goes through at least one intermediate point before arriving
at an end point to complete the gesture
3.8
length
cumulative sum of Euclidean distance (in pixels) between adjacent points of the path of a gesture
4 Guidance
4.1 General
This document build
...