Dependability reviews during the life cycle (IEC 62960:2020)

EN-IEC 63171-6 covers 2-way and 4-way (data/power) shielded free and fixedconnectors for data transmission with frequencies up to 600 MHz and specifies the commondimensions, mechanical, electrical and transmission characteristics and environmentalrequirements as well as test specifications respectively.This document specifies several properties overlapping with specifications in the IEC 63171series which have been drafted later. In case of conflict the specifications within thisdocument prevail.

Zuverlässigkeitsbewertungen während des Lebenszyklus (IEC 62960:2020)

Revues de la sûreté de fonctionnement au cours du cycle de vie (IEC 62960:2020)

IEC 62960:2020 fournit, sous un angle technique, des recommandations relatives à une méthodologie de revue de la sûreté de fonctionnement applicable à toutes les phases du cycle de vie d'un système. Son application permet d'améliorer la sûreté de fonctionnement d'un système tout au long de son cycle de vie, en déclenchant au moment opportun des mesures adéquates pour traiter les éventuels problèmes de sûreté de fonctionnement.
Il fournit des recommandations à l'attention des développeurs, des fabricants, des utilisateurs et des vérificateurs tiers indépendants, tels que des organismes de conseil.
Le présent document décrit une méthodologie de revue de la sûreté de fonctionnement portant sur:
- la cohérence des activités de revue au cours des différentes étapes du cycle de vie et leur impact sur la sûreté de fonctionnement;
- l'identification des parties prenantes et leurs effets sur les activités de revue de la sûreté de fonctionnement;
- les relations entre les différents types de revues;
- les procédures garantissant l'efficacité des revues de la sûreté de fonctionnement;
- des exemples d'activités réalisées dans le cadre de revues de la sûreté de fonctionnement.

Pregledi zanesljivosti v življenjskem ciklu (IEC 62960:2020)

General Information

Publication Date
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
Due Date
Completion Date

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SIST EN IEC 62960:2020
Pregledi zanesljivosti v življenjskem ciklu (IEC 62960:2020)
Dependability reviews during the life cycle (IEC 62960:2020)
Zuverlässigkeitsbewertungen während des Lebenszyklus (IEC 62960:2020)
Revues de la sûreté de fonctionnement au cours du cycle de vie (IEC 62960:2020)
Ta slovenski standard je istoveten z: EN IEC 62960:2020
13.020.60 Življenjski ciklusi izdelkov Product life-cycles
SIST EN IEC 62960:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62960:2020

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SIST EN IEC 62960:2020



May 2020
ICS 03.120.01

English Version
Dependability reviews during the life cycle
(IEC 62960:2020)
Revues de la sûreté de fonctionnement au cours du cycle Zuverlässigkeitsbewertungen während des Lebenszyklus
de vie (IEC 62960:2020)
(IEC 62960:2020)
This European Standard was approved by CENELEC on 2020-04-22. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 62960:2020 E

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SIST EN IEC 62960:2020
EN IEC 62960:2020 (E)
European foreword
The text of document 56/1874/FDIS, future edition 1 of IEC 62960, prepared by IEC/TC 56
"Dependability" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 62960:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-22
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 62960:2020 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
IEC 60300-1:2014 NOTE Harmonized as EN 60300-1:2014 (not modified)
IEC 60300-3-3:2017 NOTE Harmonized as EN 60300-3-3:2017 (not modified)
IEC 62741:2015 NOTE Harmonized as EN 62741:2015 (not modified)
IEC 60812 NOTE Harmonized as EN IEC 60812
IEC 61025:2006 NOTE Harmonized as EN 61025:2007 (not modified)
IEC 62402:2019 NOTE Harmonized as EN IEC 62402:2019 (not modified)
IEC 62740:2015 NOTE Harmonized as EN 62740:2015 (not modified)
IEC 61014:2003 NOTE Harmonized as EN 61014:2003 (not modified)
IEC 61508-1:2010 NOTE Harmonized as EN 61508-1:2010 (not modified)
IEC 60706-2:2006 NOTE Harmonized as EN 60706-2:2006 (not modified)
IEC 61078:2016 NOTE Harmonized as EN 61078:2016 (not modified)
IEC 62853:2018 NOTE Harmonized as EN IEC 62853:2018 (not modified)
IEC 31010:2019 NOTE Harmonized as EN IEC 31010:2019 (not modified)
IEC 60300-3-2 NOTE Harmonized as EN 60300-3-2
IEC 60721-2 (series) NOTE Harmonized as EN 60721-2 (series)
IEC 60721-3 (series) NOTE Harmonized as EN 60721-3 (series)
ISO/IEC 27000:2018 NOTE Harmonized as EN ISO/IEC 27000:2020 (not modified)
ISO 9000:2015 NOTE Harmonized as EN ISO 9000:2015 (not modified)

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EN IEC 62960:2020 (E)
Annex ZA

Normative references to international publications
with their corresponding European publications
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)
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
Publication Year Title EN/HD Year
IEC 60050-192 - International electrotechnical vocabulary - - -
Part 192: Dependability


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SIST EN IEC 62960:2020

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SIST EN IEC 62960:2020

IEC 62960


Edition 1.0 2020-03





Dependability reviews during the life cycle

Revues de la sûreté de fonctionnement au cours du cycle de vie







ICS 03.120.01 ISBN 978-2-8322-7977-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – IEC 62960:2020  IEC 2020
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 11
4 Introducing dependability reviews . 11
4.1 General . 11
4.2 Technical reviews . 13
4.3 Status reviews . 13
4.4 Overview of the dependability review method . 14
4.4.1 Overview . 14
4.4.2 Identifying stakeholders . 14
4.4.3 Identifying what the requirements are . 15
4.4.4 Capturing information on actual performance . 15
4.4.5 Assessing the gap between requirements and actual performance . 15
4.4.6 Identifying risks and areas of concern . 15
4.4.7 Recommending actions . 16
4.5 Planning for and timing of dependability reviews . 16
4.6 Levels of dependability reviews . 17
4.6.1 Overview . 17
4.6.2 Team reviews . 18
4.6.3 Project reviews . 18
4.6.4 Status reviews . 19
5 Dependability review activities during the life cycle . 19
5.1 General . 19
5.2 Concept stage . 20
5.3 Development stage . 20
5.3.1 Overview . 20
5.3.2 Design reviews . 21
5.4 Realization stage . 22
5.5 Utilization stage . 23
5.6 Enhancement stage . 23
5.7 Retirement stage . 24
6 Implementing the dependability review process . 24
6.1 General . 24
6.2 Planning of the review . 24
6.3 Selection of the review team . 25
6.4 Preparation of the input package . 25
6.5 Meeting notification and agenda . 25
6.6 Conducting a review meeting . 26
6.6.1 General . 26
6.6.2 Meeting protocol . 26
6.6.3 Action points . 27
6.6.4 Recommendations . 27

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IEC 62960:2020  IEC 2020 – 3 –
6.6.5 Rejected action points and recommendations . 27
6.6.6 Meeting conclusion . 27
6.7 Preparing and distributing review minutes . 27
6.7.1 General . 27
6.7.2 Minutes. 28
6.8 Actions and recommendations from a review . 28
6.9 Follow-up and completion of action points and recommendations . 29
Annex A (informative) Examples of an input package for a review . 30
A.1 Concept stage . 30
A.2 Development stage . 30
A.3 Realization stage . 30
A.4 Utilization stage . 31
A.5 Enhancement stage . 31
A.6 Retirement stage . 32
Annex B (informative) Examples of objectives for dependability reviews during the life

cycle . 33
B.1 General . 33
B.2 Concept stage . 33
B.3 Development stage . 33
B.3.1 Conceptual design review . 33
B.3.2 Detail design review . 33
B.3.3 Final design review . 34
B.4 Realization stage . 34
B.5 Utilization stage . 35
B.5.1 Operation . 35
B.5.2 Maintenance . 35
B.6 Enhancement stage . 35
B.7 Retirement stage . 36
Annex C (informative) Considerations during dependability reviews through the life
cycle . 37
C.1 General . 37
C.2 Examples of dependability review considerations in the concept stage . 37
C.3 Examples of dependability review considerations in the development stage . 38
C.4 Examples of dependability review considerations in the realization stage . 39
C.5 Examples of dependability review considerations in the utilization stage . 40
C.6 Examples of dependability review considerations in the enhancement stage . 41
C.7 Examples of dependability review considerations in the retirement stage . 42
Annex D (informative) Functions and responsibilities of some key persons for a
technical review . 43
D.1 General . 43
D.2 Chair . 43
D.3 Secretary . 44
D.4 Relevant specialists . 44
D.5 Project or team manager and members . 45
D.6 Customers and users . 45
Annex E (informative) Dependability topics for a review . 46
E.1 General . 46
E.2 Reliability . 46
E.3 Maintainability . 46

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E.4 Maintenance . 47
E.5 Maintenance support. 47
E.6 Availability . 47
E.7 Quality assurance . 48
E.8 Environmental effects . 49
E.9 Product safety . 50
E.10 Human factors . 50
E.11 Legal matters . 51
E.12 Durability . 52
E.13 Security . 52
E.14 Property damage . 52
E.15 Accountability . 53
Bibliography . 54

Figure 1 – Flow of reviews during a life cycle stage . 18
Figure 2 – Implementing the review process . 24

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SIST EN IEC 62960:2020
IEC 62960:2020  IEC 2020 – 5 –


1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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6) All users should ensure that they have the latest edition of this publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62960 has been prepared by IEC technical committee 56:
The text of this International Standard is based on the following documents:
FDIS Report on voting
56/1874/FDIS 56/1878/RVD

Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 6 – IEC 62960:2020  IEC 2020
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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SIST EN IEC 62960:2020
IEC 62960:2020  IEC 2020 – 7 –
Dependability is the ability to perform as and when required. Dependability has many attributes
but is usually characterized in terms of reliability, maintainability, supportability (including
maintenance and support) and availability. These attributes are subject to change over the life
cycle and can benefit from regular review.
Benefits of dependability review throughout the life cycle include:
– discovering and mitigating or eliminating weaknesses in the early life cycle stages before
they manifest as dependability problems in later stages;
– identifying and treating problems which might occur later in the life cycle, and providing
feedback to prevent their recurrence and to adapt systems to changes in environment and
other factors;
– providing assurance of dependability and of the systems and processes that aim to achieve
– continually improving the dependability of the system in order to maintain or improve a
commercial advantage.
Systems are becoming increasingly complex and constantly changing. This raises specific
problems that need attention. Systems are changing in the following ways. A system is often
developed, and/or utilized, in organizations across national borders and industry sectors.
Changes such as legislation affecting one country or industry sector may necessitate a change
to the system. System requirements can also change over time as technology, environmental
conditions and societal demands change.
Dependability reviews are mainly used for large systems, but even small products such as
mobile phones are complicated systems that may require dependability reviews.
Organizations involved in different parts of the life cycle might not be able to share a common
purpose. For example, an engineering design company during the development and realization
stages may not be able to fully anticipate the needs of stakeholders at the utilization stage.
More generally, it is becoming increasingly difficult to predict at some earlier stage potential
dependability problems that can occur at a later life cycle stage. Dependability reviews carried
out at appropriate points during the life cycle can assist in addressing all of the above issues.
This document provides guidance on dependability reviews as part of an organization’s
technical review processes. It provides a coherent set of principles for dependability reviews
which could be useful in addition to, and in support of, general monitoring and dependability
assurance carried out by various organizations at different life cycle stages.
In many cases dependability aspects of a system are covered in other reviews such as design
reviews or manufacturability reviews. In these cases, the procedures given in this document
can be applied. The informative annexes can be used as checklists to cover all technical
relevant aspects.
Dependability reviews described in this document are a key part of a dependability management
system as described in IEC 60300-1.

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1 Scope
This document provides guidance on a review methodology for dependability from a technical
perspective that is applicable at all stages of a system life cycle. Its application can improve
the dependability of a system throughout its life cycle by triggering appropriate actions at
appropriate times to address potential dependability problems.
It provides guidance for developers, manufacturers, users and third-party independent
reviewers such as consulting organizations.
This document describes a dependability review methodology focusing on:
– coherence of review activities across life cycle stages and their impact on dependability;
– stakeholder identification and how this affects dependability review activities;
– the relationships between different types of reviews;
– procedures for effective dependability reviews;
– examples of dependability review activities.
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.
IEC 60050-192, International electrotechnical vocabulary – Part 192: Dependability
(available at
3 Terms and definitions
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-192 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
• IEC Electropedia: available at
• ISO Online browsing platform: available at http://www.iso.o

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