Ergonomics - Accessible design - Spoken instructions of consumer products (ISO 24551:2019)

This document specifies ergonomic requirements and recommendations for consumer product spoken instructions that are provided to guide users in the operation of a product and/or as a means of providing feedback to users about the status/state of a product. Such instructions can be used by persons with or without visual impairments, and are useful for users who have difficulty reading and/or cognitive impairments.
The applicability of the requirements and recommendations described in this document does not depend on the language of the instructions or whether the instructions are provided via recorded human speech or synthesized speech from text.
The requirements and recommendations in this document are applicable to conventional, stand-alone consumer products in general, whose function is limited by characteristics that prevent a user from attaching, installing or using assistive technology in order to use the product. They are not applicable to machines and equipment used for professional work.
This document does not apply to products for which the instructional content and/or the means of presentation are specified in other standards (e.g. medical devices, fire alarms). It also does not provide recommendations or requirements for spoken instructions of Interactive Voice Response (IVR) systems or digital assistants on personal computers or similar devices.
NOTE    ISO 9241‑154 provides recommendations or requirements for IVR systems.
This document does not specify voice sounds of text-to-speech systems or narrative speech used in place of printed instruction manuals and independently from the product.

Ergonomie - Zugängliche Gestaltung - Sprachführung für Konsumgüter (ISO 24551:2019)

Dieses Dokument legt ergonomische Anforderungen an und Empfehlungen für eine Sprachführung für Konsumgüter fest, die bereitgestellt werden um Benutzer beim Gebrauch eines Produkts zu leiten und/oder als Mittel um Benutzern Rückmeldungen zum Status/Zustand eines Produkts bereitzustellen. Solche Anweisungen können von Personen mit oder ohne Schädigungen des Sehvermögens verwendet werden und sind für Benutzer mit Leseschwäche und/oder kognitiven Beeinträchtigungen nützlich.
Die Anwendbarkeit der in diesem Dokument beschriebenen Anforderungen und Empfehlungen hängt nicht von der Sprache der Anweisungen ab oder davon, ob die Anweisungen über aufgezeichnete menschliche Sprache oder synthetisierte Sprache aus Text bereitgestellt werden.
Die Anforderungen und Empfehlungen in diesem Dokument gelten für herkömmliche, eigenständige Konsumgüter im Allgemeinen, deren Funktion durch Merkmale eingeschränkt ist, die verhindern, dass ein Benutzer Assistenztechnologien zur Verwendung des Produkts anbringt, installiert oder verwendet. Sie gelten nicht für Maschinen und Einrichtungen, die für fachmännisches Arbeiten eingesetzt werden.
Dieses Dokument gilt nicht für Produkte, deren Anleitungstexte und/oder Darstellungsweisen in anderen Normen festgelegt sind (z. B. medizinische Geräte, Feuerwarngeräte). Des Weiteren enthält dieses Dokument keine Empfehlungen oder Anforderungen an die Sprachführung von Sprachdialogsystemen oder digitalen Assistenten auf PCs oder ähnlichen Geräten.
ANMERKUNG ISO 9241 154 enthält Empfehlungen oder Anforderungen für Sprachdialogsysteme.
Dieses Dokument trifft keine Festlegungen für eine Sprachausgabe von Systemen zur Text/Sprache-Umwandlung oder Sprachanleitungen, die anstelle von gedruckten Bedienungsanleitungen und unabhängig vom Produkt verwendet werden.

Ergonomie - Conception accessible - Instructions orales pour les produits de consommation courante (ISO 24551:2019)

Le présent document spécifie des exigences et des recommandations ergonomiques pour les instructions orales des produits de consommation courante qui sont fournies pour guider les utilisateurs lors de l'utilisation d'un produit et/ou qui permettent de renseigner les utilisateurs sur le statut/l'état d'un produit. Ces instructions peuvent être utilisées par des personnes présentant ou non des déficiences visuelles, et sont utiles pour les utilisateurs qui ont des difficultés à lire et/ou des déficiences cognitives.
L'applicabilité des exigences et recommandations décrites dans le présent document ne dépend pas de la langue des instructions ou du fait que les instructions soient fournies sous forme de parole humaine enregistrée ou de discours synthétisé à partir de texte.
Les exigences et recommandations décrites dans le présent document sont applicables aux produits de consommation courante conventionnels et autonomes, dont la fonction est en général limitée par des caractéristiques qui empêchent l'utilisateur d'attacher, d'installer ou d'utiliser une technologie d'aide pour utiliser le produit. Elles ne sont pas applicables aux machines et équipements utilisés à des fins professionnelles.
Le présent document ne s'applique pas aux produits dont le contenu didactique et/ou les moyens de présentation sont spécifiés dans d'autres normes (par exemple dispositifs médicaux, alarmes incendie). Il ne fournit pas non plus de recommandations ou d'exigences concernant les instructions orales des systèmes de réponse vocale interactive (RVI) ou des assistants numériques sur les ordinateurs personnels ou autres dispositifs similaires.
NOTE       L'ISO 9241‑154 fournit des recommandations ou des exigences sur les systèmes RVI.
Le présent document ne spécifie pas les sons de voix des systèmes de synthèse vocale ou de discours narratif utilisés à la place des manuels d'instructions imprimés et indépendamment du produit.

Ergonomija - Dostopno načrtovanje - Govorjena navodila za potrošniške izdelke (ISO 24551:2019)

General Information

Status
Published
Publication Date
19-Nov-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
20-Nov-2019
Completion Date
20-Nov-2019

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SLOVENSKI STANDARD
SIST EN ISO 24551:2020
01-maj-2020
Nadomešča:
SIST EN ISO 24500:2011
Ergonomija - Dostopno načrtovanje - Govorjena navodila za potrošniške izdelke
(ISO 24551:2019)
Ergonomics - Accessible design - Spoken instructions of consumer products (ISO
24551:2019)
Ergonomie - Zugängliche Gestaltung - Sprachführung für Konsumgüter (ISO
24551:2019)

Ergonomie - Conception accessible - Instructions vocales de produits de consommation

(ISO 24551:2019)
Ta slovenski standard je istoveten z: EN ISO 24551:2019
ICS:
11.180.15 Pripomočki za gluhe osebe in Aids for deaf and hearing
osebe z okvaro sluha impaired people
13.180 Ergonomija Ergonomics
SIST EN ISO 24551:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 24551:2020
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SIST EN ISO 24551:2020
EN ISO 24551
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 11.180.15; 13.180
English Version
Ergonomics - Accessible design - Spoken instructions of
consumer products (ISO 24551:2019)

Ergonomie - Conception accessible - Instructions Ergonomie - Zugängliche Gestaltung - Sprachführung

orales pour les produits de consommation courante für Konsumgüter (ISO 24551:2019)

(ISO 24551:2019)
This European Standard was approved by CEN on 25 October 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 24551:2019 E

worldwide for CEN national Members.
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SIST EN ISO 24551:2020
EN ISO 24551:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 24551:2020
EN ISO 24551:2019 (E)
European foreword

This document (EN ISO 24551:2019) has been prepared by Technical Committee ISO/TC 159

"Ergonomics" in collaboration with Technical Committee CEN/TC 122 “Ergonomics” the secretariat of

which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by May 2020, and conflicting national standards shall be

withdrawn at the latest by May 2020.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 24551:2019 has been approved by CEN as EN ISO 24551:2019 without any modification.

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SIST EN ISO 24551:2020
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SIST EN ISO 24551:2020
INTERNATIONAL ISO
STANDARD 24551
First edition
2019-10
Ergonomics — Accessible design —
Spoken instructions of consumer
products
Ergonomie — Conception accessible — Instructions orales pour les
produits de consommation courante
Reference number
ISO 24551:2019(E)
ISO 2019
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SIST EN ISO 24551:2020
ISO 24551:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 24551:2020
ISO 24551:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Application of the provisions of this document ................................................................................................................... 2

5 General requirements and recommendations ...................................................................................................................... 2

6 Specifications of spoken instructions ............................................................................................................................................. 3

6.1 Ease of hearing spoken instructions .................................................................................................................................... 3

6.2 Ease of understanding spoken instructions .................................................................................................................. 4

6.3 Making the use of the product easier .................................................................................................................................. 4

7 Information about the product that spoken instructions are to provide ..................................................4

8 Evaluation of spoken instructions...................................................................................................................................................... 5

Annex A (informative) Sound volume setting of spoken instructions ............................................................................... 6

Annex B (normative) Validation test for spoken instructions ................................................................................................... 7

Bibliography ................................................................................................................................................................................................................................ 8

© ISO 2019 – All rights reserved iii
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SIST EN ISO 24551:2020
ISO 24551:2019(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

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 ISO documents 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 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).

Any trade name used in this document is information given for the convenience of users and does not

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.

This document was prepared by Technical Committee ISO/TC 159, Ergonomics, Subcommittee SC 4,

Ergonomics of human-system interaction.
This first edition cancels and replaces ISO 24500:2010.

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.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 24551:2020
ISO 24551:2019(E)
Introduction

Consumer products, as defined in ISO 20282-1, include home electrical appliances, information and

telecommunication products, gas-heating equipment, toys, sanitary equipment, health-care products,

and cameras, some of which use spoken instructions.

These spoken instructions can assist product users regardless of age, including those with visual

impairments or moderate cognitive disorders that can cause reading difficulties, in using the product

correctly and safely. The spoken instructions are also helpful for some users who are not accustomed

to using the product. Therefore, the instructions should be designed so that they are easy to hear and

comprehend.

This document adopts the principles of accessible design given in ISO/IEC Guide 71 and amplified in

ISO/TR 22411.
© ISO 2019 – All rights reserved v
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SIST EN ISO 24551:2020
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SIST EN ISO 24551:2020
INTERNATIONAL STANDARD ISO 24551:2019(E)
Ergonomics — Accessible design — Spoken instructions of
consumer products
1 Scope

This document specifies ergonomic requirements and recommendations for consumer product

spoken instructions that are provided to guide users in the operation of a product and/or as a means

of providing feedback to users about the status/state of a product. Such instructions can be used by

persons with or without visual impairments, and are useful for users who have difficulty reading and/

or cognitive impairments.

The applicability of the requirements and recommendations described in this document does not

depend on the language of the instructions or whether the instructions are provided via recorded

human speech or synthesized speech from text.

The requirements and recommendations in this document are applicable to conventional, stand-alone

consumer products in general, whose function is limited by characteristics that prevent a user from

attaching, installing or using assistive technology in order to use the product. They are not applicable

to machines and equipment used for professional work.

This document does not apply to products for which the instructional content and/or the means of

presentation are specified in other standards (e.g. medical devices, fire alarms). It also does not provide

recommendations or requirements for spoken instructions of Interactive Voice Response (IVR) systems

or digital assistants on personal computers or similar devices.
NOTE ISO 9241-154 provides recommendations or requir
...

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