ISO/IEC 20071-5:2022

INTERNATIONAL ISO/IEC
STANDARD 20071-5
First edition
2022-05
Information technology — User
interface component accessibility —
Part 5:
Accessible user interfaces for
accessibility settings on information
devices
Technologies de l'information — Accessibilité du composant interface
utilisateur —
Partie 5: Interfaces utilisateur accessibles pour le paramétrage de
l'accessibilité d'appareils informatiques
Reference number
© ISO/IEC 2022
© ISO/IEC 2022
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© ISO/IEC 2022 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements and recommendations . 7
4.1 Accessibility setting mode . 7
4.1.1 Contents and interface of the accessibility setting mode . 7
4.1.2 Accessibility setting mode before login . 11
4.2 Items of accessibility setting . 13
4.2.1 Input .13
4.2.2 Output . 20
4.3 Shortcuts to access the accessibility features . 22
4.3.1 General .22
4.3.2 Shortcuts to access accessibility settings . 23
4.3.3 Shortcuts to activate accessibility features or preset usage modes .23
4.4 Saving accessibility parameters . 23
Annex A (informative) Examples of shortcut keys and voice commands .24
Bibliography .29
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© ISO/IEC 2022 – All rights reserved

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 or
www.iec.ch/members_experts/refdocs).
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 https://patents.iec.ch).
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constitute an endorsement.
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. In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 35, User interfaces.
A list of all parts in the ISO/IEC 20071 series can be found on the ISO and IEC websites.
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 and
www.iec.ch/national-committees.
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© ISO/IEC 2022 – All rights reserved

Introduction
People with disabilities (e.g. visual, hearing, physical) can experience difficulties in accessing
information and communications technology (ICT) devices. Accessible user interfaces, as described in
this document, can help them to operate devices.
To effectively operate accessible user interfaces, users need to be able to adjust accessibility settings
first. If this is not possible, some people will not be able to access these devices without help from
another party.
This document makes information technologies more accessible by ensuring that people with
disabilities can adjust accessibility settings by themselves.
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© ISO/IEC 2022 – All rights reserved

INTERNATIONAL STANDARD ISO/IEC 20071-5:2022(E)
Information technology — User interface component
accessibility —
Part 5:
Accessible user interfaces for accessibility settings on
information devices
1 Scope
This document specifies requirements and recommendations for making accessibility settings
accessible and usable. It provides guidance on specific accessibility settings, saving settings and
modifying settings. It specifies how to access and operate the accessibility setting mode, and how to
directly activate specific accessibility features.
This document applies to all operating system user interfaces on all types of information and
communications technologies (ICTs) from the point where the operating system is fully functional and
waiting for the user to interact with it.
This document does not apply to:
— storing and retrieving information from a stored user profile, including personally identifiable
information;
— accessibility of the closed functionality that does not support access by assistive technology;
— accessibility of boot mode.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 9241-171:2008, Ergonomics of human-system interaction — Part 171: Guidance on software
accessibility
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
© ISO/IEC 2022 – All rights reserved

NOTE The terms BounceKeys™, StickyKeys™, SlowKeys™, FilterKeys™, MouseKeys™, RepeatKeys™,
ToggleKeys™, SoundSentry™, and ShowSounds™ are all trademarks of the University of Wisconsin. However,
use of the terms is permitted freely, without royalty or license, to describe user interface features that have the
1)
functionality and behaviour described in this document .
3.1
accessibility feature
feature that is specifically designed to increase the usability of products for persons with disabilities
[SOURCE: ISO 9241-171:2008, 3.3, modified — "persons with disabilities" was replaced by "those
experiencing disabilities".]
3.2
accessibility setting
setting to make the user interface more accessible for people with disabilities
EXAMPLE A setting is provided to turn large text or screen magnification ON for people with low vision.
Note 1 to entry: There are three types of accessibility settings:
— The settings for the operating system.
— The settings for the application by the operating system.
— The settings inside of the application.
3.3
accessibility setting mode
user interface where the user adjusts accessibility settings (3.2)
Note 1 to entry: A user can access almost all the accessibility settings and adjustments for the accessibility
features (3.1) through this mode.
3.4
auditory feedback
feature that allows users to determine, by sound indication, relevant activities on the device (e.g. key
input)
Note 1 to entry: Auditory feedback includes a beep sound with, e.g. key input, alarm sound, speech output. Audio
feedback can be personalised by the user.
3.5
BounceKeys™
feature that only accepts a single keystroke at a time from a key
Note 1 to entry: BounceKeys™ is designed for users with a tremor or lack of dexterity that causes them to
inadvertently strike a key extra times when pressing or releasing the key. Once a key is released it will not accept
another stroke of the same key until a (user-settable) period of time has passed. BounceKeys™ has no effect on
how quickly a person can type a different key.
Note 2 to entry: See ISO 9241-171:2008, E.3.4 (modified).
3.6
FilterKeys™
BounceKeys™ (3.5) and SlowKeys™ (3.20) features combined
Note 1 to entry: The term FilterKeys™ is sometimes used for the BounceKeys™ and SlowKeys™ features packaged
together. Some implementations make these two features mutually exclusive. However, they can also both be
active at the same time (although SlowKeys™ will dominate).
1) BounceKeys™, StickyKeys™, SlowKeys™, FilterKeys™, MouseKeys™, RepeatKeys™, ToggleKeys™, SoundSentry™,
and ShowSounds™ are the trademarks of the University of Wisconsin. This information is given for the convenience
of users of this document and does not constitute an endorsement by ISO or IEC of the product named. Equivalent
products may be used if they can be shown to lead to the same results.
© ISO/IEC 2022 – All rights reserved

Note 2 to entry: See ISO 9241-171:2008, E.3.5.
3.7
gaze control
interaction through eye gaze or blink
3.8
home function
reserved operation of the user interface that moves all open applications to the background and returns
visible and programmable focus to the home screen
Note 1 to entry: For some devices, the home function can be activated using the home button.
Note 2 to entry: The home function can be accessed within an application via a labelled button, such as a back
button.
Note 3 to entry: The home function can be accessed by voice.
Note 4 to entry: The home function may be assigned to key combinations or gestures.
3.9
login mode
user interface for authentication to access the operating system
Note 1 to entry: The login mode includes, e.g. password input form, biometrics authentication, voice
authentication. Login mode begins after boot mode (3.10).
3.10
boot mode
initialized mode of program operations when a computer is turned on
Note 1 to entry: The boot mode ends when the operating system of the device is loaded and is followed by login
mode (3.9).
[SOURCE: ISO/IEC IEEE 24765:2017, 3.402, modified — "device" was replaced by "computer".]
3.11
MouseKeys™
feature that allows the user to control the mouse cursor and operate the mouse buttons via the
keyboard (e.g. the numeric keypad)
Note 1 to entry: MouseKeys™ is designed for users who are physically unable to use a mouse.
Note 2 to entry: See ISO 9241-171:2008, E.3.6.
3.12
on-screen keyboard
virtual keyboard displayed on any type of screen
Note 1 to entry: On-screen keyboards are one specific type of virtual keyboard, probably the most common, that
use a screen to display a visual keyboard.
Note 2 to entry: This type of virtual keyboard c
...