IEC 60300-3-4:2007
(Main)Dependability management - Part 3-4: Application guide - Guide to the specification of dependability requirements
Dependability management - Part 3-4: Application guide - Guide to the specification of dependability requirements
Gives guidance on specifying required dependability characteristics in product and equipment specifications, together with specifications of procedures and criteria for verification. Includes advice on specifying quantitative and qualitative reliability, maintainability and availability requirements. The main changes from the previous edition are: the concept of systems has been included and the need to specify the dependability of the system and not just the physical equipment has been stressed; the need for verification and validation of the requirement has been included; differentiation has been made between requirements, that can be measured and verified and validated, and goals, which cannot; and the content on availability, maintainability and maintenance support has been updated and expanded to similar level of detail to reliability.
Gestion de la sûreté de fonctionnement - Partie 3-4: Guide d'application - Spécification d'exigences de sûreté de fonctionnement
Donne des recommandations pour spécifier les caractéristiques de sûreté de fonctionnement qui sont préscrites dans les spécifications de produits et de matériels, ainsi que pour spécifier les procédures et les critères de vérification. On trouve notamment des conseils pour spécifier des exigences quantitatives et qualitatives de fiabilité, de maintenabilité et de disponibilité. Les modifications majeures par rapport à l'édition précédente sont les suivantes: le concept de système a été introduit et la nécessité de spécifier la sûreté de fonctionnement du système et non uniquement celle des équipements physiques est mise en évidence; la nécessité de la vérification et de la validation des exigences a été introduite; une différenciation est apportée entre les exigences qui peuvent être mesurées, vérifiées et validées et les objectifs qui eux, ne le peuvent pas; le contenu du support de disponibilité, de maintenabilité et de maintenance a été mis à jour et étendu à un niveau de détail similaire à celui du support de fiabilité.
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IEC 60300-3-4
Edition 2.0 2007-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Dependability management –
Part 3-4: Application guide – Guide to the specification of dependability
requirements
Gestion de la sûreté de fonctionnement –
Partie 3-4: Guide d'application – Spécification d'exigences de sûreté de
fonctionnement
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IEC 60300-3-4
Edition 2.0 2007-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Dependability management –
Part 3-4: Application guide – Guide to the specification of dependability
requirements
Gestion de la sûreté de fonctionnement –
Partie 3-4: Guide d'application – Spécification d'exigences de sûreté de
fonctionnement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
W
CODE PRIX
ICS 03.100.40; 03.120.01 ISBN 2-8318-9308-9
– 2 – 60300-3-4 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .9
4 General considerations for dependability specifications .9
4.1 The need for dependability .9
4.2 Requirements and goals.11
4.3 Systems .11
4.4 Demonstration of achievement of requirements .13
4.4.1 Concept.13
4.4.2 Activities.14
4.5 Contracting for dependability.15
4.6 Types of specification.16
4.7 Derivation of dependability specifications .17
5 Dependability management .18
6 Availability.19
6.1 General .19
6.1.1 Choice of dependability characteristic.19
6.1.2 Relationship between availability, reliability and maintainability .19
6.2 Availability specifications.20
6.2.1 Quantitative requirements.20
6.2.2 Qualitative requirements.20
6.3 Provision of availability verification and validation .20
6.3.1 General .20
6.3.2 Verification and validation by testing.21
6.3.3 Verification and validation by analysis .21
7 Reliability .21
7.1 General .21
7.2 Reliability specification.22
7.2.1 Quantitative requirements.22
7.2.2 Qualitative requirements.23
7.3 Reliability verification and validation.24
7.3.1 General .24
7.3.2 Verification and validation by testing.24
7.3.3 Verification and validation by analysis .25
8 Maintainability .25
8.1 General .25
8.2 Maintainability specification.25
8.2.1 Quantitative requirements.25
8.2.2 Qualitative requirements.26
8.3 Maintainability verification and validation.26
9 Maintenance support .27
9.1 General .27
9.2 Maintenance support specification.27
60300-3-4 © IEC:2007 – 3 –
9.2.1 Quantitative requirements.27
9.2.2 Qualitative requirements.28
9.3 Maintenance support verification and validation .28
Annex A (informative) Reference standards for verification and validation techniques.29
Annex B (informative) Examples of reliability, maintainability, maintenance support
and availability requirements .31
Bibliography.33
Figure 1 – Relationship between cost and reliability.10
Figure 2 – System elements.12
Table A.1 – Techniques for dependability verification and validation through testing.29
Table A.2 – Techniques for dependability verification and validation through analysis.30
– 4 – 60300-3-4 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
DEPENDABILITY MANAGEMENT –
Part 3-4: Application guide –
Guide to the specification of dependability requirements
FOREWORD
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