EN ISO 24096-2:2024

Technical product documentation (TPD) - Classification of requirements - Part 2: Classification based on severity and susceptibility (ISO 24096-2:2024)

This document specifies a method for the classification of requirements based on severity and susceptibility. The classification method requires a system in line with the framework described in ISO 24096-1 to form a complete system.
This document:
—     gives guidance on the needed elements for a consistent evaluation of the severity over time, and supports a company business model and its brand image;
—     gives background to why additional parameters alongside severity are useful as a base for classification;
—     adds susceptibility as a viable parameter along with severity;
—     gives guidance on the methodology for classification requirements using severity and susceptibility.

Technische Produktdokumentation(TPD) - Klassifizierung von Anforderungen - Teil 2: Klassifizierung nach Schweregrad und Empfindlichkeit (ISO 24096-2:2024)

Documentation technique de produits (TPD) - Classification des exigences - Partie 2: Classification en fonction de la gravité et de la susceptibilité (ISO 24096-2:2024)

This document specifies a method for the classification of requirements based on severity and susceptibility. The classification method requires a system in line with the framework described in ISO 24096-1 to form a complete system.
This document:
—     gives guidance on the needed elements for a consistent evaluation of the severity over time, and supports a company business model and its brand image;
—     gives background to why additional parameters alongside severity are useful as a base for classification;
—     adds susceptibility as a viable parameter along with severity;
—     gives guidance on the methodology for classification requirements using severity and susceptibility.

Tehnična dokumentacija proizvodov (TDP) - Razvrščanje zahtev - 2. del: Razvrščanje po težavnosti in občutljivosti (ISO 24096-2:2024)

General Information

• Status: Published
• Publication Date: 17-Sep-2024
• ICS: 01.100.01 - Technical drawings in general
• Technical Committee: CEN/SS F01 - Technical drawings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 18-Sep-2024
• Completion Date: 18-Sep-2024
• Ref Project: SIST EN ISO 24096-2:2024 - Technical product documentation (TPD) - Classification of requirements - Part 2: Classification based on severity and susceptibility (ISO 24096-2:2024)

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2024
Tehnična dokumentacija proizvodov (TDP) - Razvrščanje zahtev - 2. del:
Razvrščanje po težavnosti in občutljivosti (ISO 24096-2:2024)
Technical product documentation (TPD) - Classification of requirements - Part 2:
Classification based on severity and susceptibility (ISO 24096-2:2024)
Technische Produktdokumentation(TPD) - Klassifizierung von Anforderungen - Teil 2:
Klassifizierung nach Schweregrad und Empfindlichkeit (ISO 24096-2:2024)
Documentation technique de produits (TPD) - Classification des exigences - Partie 2:
Classification en fonction de la gravité et de la susceptibilité (ISO 24096-2:2024)
Ta slovenski standard je istoveten z: EN ISO 24096-2:2024
ICS:
01.110 Tehnična dokumentacija za Technical product
izdelke documentation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 24096-2
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2024
EUROPÄISCHE NORM
ICS 01.100.01
English Version
Technical product documentation (TPD) - Classification of
requirements - Part 2: Classification based on severity and
susceptibility (ISO 24096-2:2024)
Documentation technique de produits (TPD) - Technische Produktdokumentation(TPD) -
Classification des exigences - Partie 2: Classification en Klassifizierung von Anforderungen - Teil 2:
fonction de la gravité et de la susceptibilité (ISO 24096- Klassifizierung nach Schweregrad und Empfindlichkeit
2:2024) (ISO 24096-2:2024)
This European Standard was approved by CEN on 24 August 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 24096-2:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 24096-2:2024) has been prepared by Technical Committee ISO/TC 10
"Technical product documentation" in collaboration with CCMC.
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 March 2025, and conflicting national standards shall
be withdrawn at the latest by March 2025.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 24096-2:2024 has been approved by CEN as EN ISO 24096-2:2024 without any
modification.
International
Standard
ISO 24096-2
First edition
Technical product documentation
2024-09
(TPD) — Classification of
requirements —
Part 2:
Classification based on severity and
susceptibility
Documentation technique de produits (TPD) — Classification des
exigences —
Partie 2: Classification en fonction de la gravité et de la
susceptibilité
Reference number
ISO 24096-2:2024(en) © ISO 2024

ISO 24096-2:2024(en)
© ISO 2024
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 24096-2:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4 Basic rules . 2
5  Classification with severity and susceptibility . 2
5.1 The three steps .2
5.1.1 General .2
5.1.2 Evaluation of severity .3
5.1.3 Evaluation of susceptibility .3
5.1.4 Weighing severity and susceptibility together .3
5.2 Severity and severity lists .4
5.2.1 General .4
5.2.2 Severity description .4
5.2.3 Severity list.5
5.3 Function as the route to severity .5
5.3.1 Function description .5
5.3.2 Effects of deviating functions .5
5.3.3 Final severity .6
5.4 Susceptibility and the requirement pyramid .6
5.5 Weighing together .7
Annex A (informative)  Classification examples with severity and susceptibility . 8
Annex B (informative)  Guidance on susceptibility .21
Bibliography .23

iii
ISO 24096-2:2024(en)
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 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 10, Technical product documentation,
Subcommittee SC 6, Mechanical engineering documentation, in collaboration with the European Committee
for Standardization (CEN) Technical Committee CEN/SS F01, Technical drawings, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 24096 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.

iv
ISO 24096-2:2024(en)
Introduction
This document addresses the classification of requirements. It provides a framework for building a
system to enable the classification of requirements and an indication of the classification in the functional
specification, FUN-SPEC, to support communication of t
...