IEC 63351:2024

IEC 63351 ®
Edition 1.0 2024-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear facilities – Human factors engineering – Application to the design of
human-machine interfaces
Installations nucléaires – Ingénierie des facteurs humains – Application à la
conception des interfaces homme-machine

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC -  IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications, symboles
en utilisant différents critères (numéro de référence, texte, graphiques et le glossaire. Avec un abonnement, vous aurez
comité d’études, …). Elle donne aussi des informations sur les toujours accès à un contenu à jour adapté à vos besoins.
projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 500 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 25 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 63351 ®
Edition 1.0 2024-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear facilities – Human factors engineering – Application to the design of

human-machine interfaces
Installations nucléaires – Ingénierie des facteurs humains – Application à la

conception des interfaces homme-machine

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.120.20  ISBN 978-2-8322-9546-5

– 2 – IEC 63351:2024 © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
3.1 Control locations . 11
3.2 Function, task and performance . 12
3.3 Human factors aspects . 13
3.4 Operational aspects . 14
3.5 Verification and validation . 16
4 Abbreviated terms . 17
5 Management of human factors engineering programme . 18
5.1 General . 18
5.2 Management arrangements . 19
5.3 Human factors engineering team . 20
5.3.1 HFE team responsibilities . 20
5.3.2 Support by a multidisciplinary team . 20
5.3.3 HFE team organisation, qualification and authorization . 21
5.4 Overall design process . 21
5.5 Identification and resolution of human engineering discrepancies (HEDs) . 23
5.6 HFE programme scope considerations . 23
5.6.1 General . 23
5.6.2 Integration of activities with the rest of plant facilities . 23
5.6.3 Screening of HFE elements . 23
5.6.4 Graded approach . 24
5.6.5 Use of reference designs . 24
5.6.6 Examples of application to different projects . 25
5.7 End point vision . 26
5.8 HFE deliverables to be prepared . 27
5.8.1 General . 27
5.8.2 HFE programme management . 27
5.8.3 Other HFE elements . 27
6 Analyses providing input to human interaction . 28
6.1 Operating experience review (OER) . 28
6.2 Functional analysis and assignment . 29
6.2.1 General . 29
6.2.2 Functional analysis . 29
6.2.3 Functional assignment . 29
6.2.4 Verification and re-evaluation of assignment . 29
6.2.5 Staff capabilities . 30
6.2.6 I&C system processing capabilities . 30
6.3 Identification and treatment of important human tasks . 30
6.3.1 General . 30
6.3.2 Identification of important human tasks . 31
6.3.3 Treatment of important human tasks . 31
6.3.4 Human reliability and safety analyses support . 32

6.4 Task analysis (TA) . 32
6.4.1 General . 32
6.4.2 Definition of the scope and screening criteria. 33
6.4.3 Development of task descriptions . 34
6.4.4 Breakdown tasks . 34
6.4.5 Specific task requirement identification . 35
6.4.6 Output and documentation . 35
6.5 Staffing, organisation, and qualification analysis . 35
6.5.1 General . 35
6.5.2 Inputs to staffing, organisation, and qualification analysis . 36
6.5.3 Methods used for staffing, organisation, and qualification analysis . 37
7 Design of control centres, local control points (LCPs), human-machine interfaces
(HMIs), procedures and training programmes . 37
7.1 General . 37
7.2 Design of control centres, LCPs and HMIs . 38
7.2.1 General . 38
7.2.2 HFE inputs to the design of control centres and HMIs . 39
7.3 Guidance for the design of control centres, LCPs and HMIs . 39
7.3.1 General . 39
7.3.2 Plant-specific HFE guidance . 39
7.3.3 Project-specific HFE guidance . 39
7.3.4 Guidance for the design of control centres . 40
7.3.5 Guidance for the design of local control points (LCPs) . 40
7.3.6 Guidance for the design of human-machine interfaces (HMIs) . 41
7.4 Development of procedures . 41
7.4.1 General . 41
7.4.2 Paper-based procedures vs. computer-based procedures (CBP) . 42
7.4.3 Procedures writers guide . 42
7.4.4 Other HFE inputs to procedure designers . 43
7.4.5 Procedures and multistage verification and validation (V&V) .
...