iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CLC

EN 62628:2012

(Main)

Guidance on software aspects of dependability

Guidance on software aspects of dependability

IEC 62628:2012 addresses the issues concerning software aspects of dependability and gives guidance on achievement of dependability in software performance influenced by management disciplines, design processes and application environments. It establishes a generic framework on software dependability requirements, provides a software dependability process for system life cycle applications, presents assurance criteria and methodology for software dependability design and implementation and provides practical approaches for performance evaluation and measurement of dependability characteristics in software systems. Keywords: software, performance, dependability

Leitlinien zu Softwareaspekten der Zuverlässigkeit

Lignes directrices concernant la sûreté de fonctionnement du logiciel

La CEI 62628:2012 porte sur les problèmes concernant la sûreté de fonctionnement du logiciel et définit les lignes directrices pour la réalisation de la sûreté de fonctionnement dans les performances logicielles influencées par les disciplines de management, les processus de conception et les environnements d'application. Elle définit un cadre générique pour les exigences en matière de sûreté de fonctionnement du logiciel, fournit un processus de sûreté de fonctionnement du logiciel pour les applications du cycle de vie du système, présente les critères d'assurance et la méthodologie pour la conception et la mise en eouvre de la sûreté de fonctionnement du logiciel, et fournit des approches et mesures pratiques des caractéristiques de sûreté de fonctionnement dans les systèmes logiciels. Mots clé: logiciel, fonctionnement, performances

Navodilo o programskih vidikih zagotovljivosti

Ta mednarodni standard obravnava vprašanja v zvezi s programskimi vidiki zagotovljivosti in podaja navodila za doseganje zagotovljivosti pri delovanju programske opreme, na katero vpliva upravljanje disciplin, načrtovanje procesov in okolja aplikacij. Uveljavlja splošni okvir za zahteve programske zagotovljivosti, podaja postopek programske zagotovljivosti za življenjski cikel aplikacij, zagotavlja merila in metodologijo za načrtovanje in implementacijo programske zagotovljivosti ter podaja praktične pristope za oceno delovanja in merjenje značilnosti zagotovljivosti v programskih sistemih. Ta standard se uporablja za navodila razvijalcem in oskrbovalcem programskih sistemov, sistemskim integratorjem, upravljalcem, vzdrževalcem in uporabnikom programskih sistemov, ki jih zanimajo praktični pristopi in aplikacijski inženiring za doseganje zagotovljivosti programskih izdelkov in sistemov.

General Information

Status
Published
Publication Date
20-Sep-2012
Withdrawal Date
11-Sep-2015
ICS
03.120.01 - Quality in general
Technical Committee
CLC/SR 56 - Dependability
Drafting Committee
IEC/TC 56 - IEC_TC_56
Current Stage
6060 - Document made available - Publishing
Start Date
21-Sep-2012
Completion Date
21-Sep-2012
Ref Project
SIST EN 62628:2012 - Guidance on software aspects of dependability

Buy Standard

EN 62628:2012EN 62628:2012
PreviousNext
Standard
EN 62628:2012
English language
64 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


SLOVENSKI STANDARD
01-december-2012
Navodilo o programskih vidikih zagotovljivosti
Guidance on software aspects of dependability
Leitlinien zu Softwareaspekten der Zuverlässigkeit
Lignes directrices concernant la sûreté de fonctionnement du logiciel
Ta slovenski standard je istoveten z: EN 62628:2012
ICS:
03.120.01 Kakovost na splošno Quality in general
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62628
NORME EUROPÉENNE
September 2012
EUROPÄISCHE NORM
ICS 03.120.01
English version
Guidance on software aspects of dependability
(IEC 62628:2012)
Lignes directrices concernant la sûreté de Leitlinien zu Softwareaspekten der
fonctionnement du logiciel Zuverlässigkeit
(CEI 62628:2012) (IEC 62628:2012)

This European Standard was approved by CENELEC on 2012-09-12. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62628:2012 E
Foreword
The text of document 56/1469/FDIS, future edition 1 of IEC 62628, prepared by IEC/TC 56,
"Dependability" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2013-06-12
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-09-12
• latest date by which the national
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 62628:2012 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 indicated:
IEC 62508 NOTE  Harmonized as EN 62508.
IEC 60300-1 NOTE  Harmonized as EN 60300-1.
IEC 60300-2 NOTE  Harmonized as EN 60300-2.
IEC 60300-3-3 NOTE  Harmonized as EN 60300-3-3.
IEC 62347 NOTE  Harmonized as EN 62347.
IEC 61160 NOTE  Harmonized as EN 61160.
IEC 61078 NOTE  Harmonized as EN 61078.
IEC 61025 NOTE  Harmonized as EN 61025.
IEC 61165 NOTE  Harmonized as EN 61165.
1) 1)
IEC 62551 NOTE  Harmonized as EN 62551 .
IEC 60812 NOTE  Harmonized as EN 60812.
IEC 60300-3-1 NOTE  Harmonized as EN 60300-3-1.
IEC 61508-3 NOTE  Harmonized as EN 61508-3.
IEC 62429 NOTE  Harmonized as EN 62429.
IEC 61014 NOTE  Harmonized as EN 61014.
IEC 61164 NOTE  Harmonized as EN 61164.
1) 1)
IEC 62506 NOTE  Harmonized as EN 62506 .

1)
To be published.
- 3 - EN 62628:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60050-191 - International Electrotechnical Vocabulary - -
(IEV) -
Chapter 191: Dependability and quality of
service
IEC 60300-3-15 - Dependability management - EN 60300-3-15 -
Part 3-15: Application guide - Engineering of
system dependability
IEC 62628 ®
Edition 1.0 2012-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Guidance on software aspects of dependability

Lignes directrices concernant la sûreté de fonctionnement du logiciel

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 03.120.01 ISBN 978-2-83220-303-3

– 2 – 62628 © IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
4 Overview of software aspects of dependability . 9
4.1 Software and software systems . 9
4.2 Software dependability and software organizations . 10
4.3 Relationship between software and hardware dependability . 10
4.4 Software and hardware interaction . 11
5 Software dependability engineering and application. 12
5.1 System life cycle framework . 12
5.2 Software dependability project implementation . 12
5.3 Software life cycle activities . 13
5.4 Software dependability attributes . 14
5.5 Software design environment . 15
5.6 Establishing software requirements and dependability objectives . 15
5.7 Classification of software faults . 16
5.8 Strategy for software dependability implementation . 17
5.8.1 Software fault avoidance . 17
5.8.2 Software fault control . 17
6 Methodology for software dependability applications . 18
6.1 Software development practices for dependability achievement . 18
6.2 Software dependability metrics and data collection . 18
6.3 Software dependability assessment . 19
6.3.1 Software dependability assessment process . 19
6.3.2 System performance and dependability specification . 20
6.3.3 Establishing software operational profile . 21
6.3.4 Allocation of dependability attributes . 21
6.3.5 Dependability analysis and evaluation . 22
6.3.6 Software verification and software system validation . 24
6.3.7 Software testing and measurement . 25
6.3.8 Software reliability growth and forecasting . 28
6.3.9 Software dependability information feedback . 29
6.4 Software dependability improvement . 29
6.4.1 Overview of software dependability improvement . 29
6.4.2 Software complexity simplification . 29
6.4.3 Software fault tolerance . 30
6.4.4 Software interoperability . 30
6.4.5 Software reuse . 31
6.4.6 Software maintenance and enhancement . 31
6.4.7 Software documentation . 32
6.4.8 Automated tools . 33
6.4.9 Technical support and user training . 33

62628 © IEC:2012 – 3 –
7 Software assurance . 34
7.1 Overview of software assurance . 34
7.2 Tailoring process . 34
7.3 Technology influence on software assurance. 34
7.4 Software assurance best practices . 35
Annex A (informative) Categorization of software and software applications . 37
Annex B (informative) Software system requirements and related dependability
activities . 39
Annex C (informative) Capability maturity model integration process . 43
Annex D (informative) Classification of software defect attributes . 46
Annex E (informative) Examples of software data metrics obtained from data collection . 50
Annex F (informative) Example of combined hardware/software reliability functions . 53
Annex G (informative) Summary of software reliability model metrics . 55
Annex H (informative) Software reliability models selection and application . 56
Bibliography . 59

Figure 1 – Software life cycle activities . 14
Figure F.1 – Block diagram for a monitoring control system . 53

Table C.1 – Comparison of capability and maturity levels . 43
Table D.1 – Classification of software defect attributes when a fault is found . 46
Table D.2 – Classification of software defect attributes when a fault is fixed . 47
Table D.3 – Design review/code inspection activity to triggers mapping . 47
Table D.4 – Unit test activity to triggers mapping . 48
Table D.5 – Function test activity to triggers mapping . 48
Table D.6 – System test activity to triggers mapping . 49
Table H.1 – Examples of software reliability models . 57

– 4 – 62628 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDANCE ON SOFTWARE ASPECTS OF
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CLC
EN IEC 62506:2023(Main)
Methods for product accelerated testing
SIST EN IEC 62506:2024

IEC 62506:2023 provides guidance on the application of various accelerated test techniques for measurement or improvement of item reliability. Identification of potential failure modes that can be experienced in the use of an item and their mitigation is instrumental to ensure dependability of an item. The object of the methods is to either identify potential design weakness or provide information on item reliability, or to achieve necessary reliability and availability improvement, all within a compressed or accelerated period of time. This document addresses accelerated testing of non-repairable and repairable systems. It can be used for probability ratio sequential tests, fixed duration tests and reliability improvement/growth tests, where the measure of reliability can differ from the standard probability of failure occurrence. This document also extends to present accelerated testing or production screening methods that would identify weakness introduced into the item by manufacturing error, which can compromise item reliability. Services and people are however not covered by this document.

  • Standard
    94 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60300-3-4:2022(Main)
Dependability management - Part 3-4: Application guide - Specification of dependability requirements
SIST EN IEC 60300-3-4:2022

IEC 60300-3-4:2022 gives guidance on specifying dependability requirements and collating these requirements in a specification, together with a list of the means of assuring the achievement of the dependability requirements. The guidance provided includes: • specifying quantitative and qualitative reliability, maintainability, supportability and availability requirements; • advising acquirers on how to ensure that the requirements can be fulfilled by suppliers; • advising suppliers to help them meet the acquirer's requirements. Other obligations, such as legislation and governmental regulations, can also place requirements on items, in addition to any requirements derived in accordance with this document.

  • Standard
    59 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 62960:2020(Main)
Dependability reviews during the life cycle
SIST EN IEC 62960:2020

IEC 62960:2020 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.

  • Standard
    58 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61163-2:2020(Main)
Reliability stress screening - Part 2: Components
SIST EN IEC 61163-2:2020

IEC 61163-2:2020 provides guidance on RSS techniques and procedures for electrical, electronic, and mechanical components. This document is procedural in nature and is not, and cannot be, exhaustive with respect to component technologies due to the rapid rate of developments in the component industry. This document is: a) intended for component manufacturers as a guideline; b) intended for component users as a guideline to negotiate with component manufacturers on RSS requirements; c) intended to allow the planning of an RSS process in house to meet reliability requirements or to allow the re-qualification of components for specific, upgraded, environments; d) intended as a guideline to sub-contractors who provide RSS as a service. This document is not intended to provide test plans for specific components or for delivery of certificates of conformance for batches of components. The use of bi-modal Weibull analysis to select and optimize an RSS process without having to estimate the reliability and life time of all items is described. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) this version of the document is a complete rewrite and restructure from the previous version.

  • Standard
    31 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61123:2020(Main)
Reliability testing - Compliance test plans for success ratio
SIST EN IEC 61123:2020

IEC 61123:2019 is intended to define a procedure to verify if a reliability of an item/system complies with the stated requirements. The requirement is assumed to be specified as the percentage of success (success ratio) or the percentage of failures (failure ratio). This document can be used where a number of items are tested (number of trials performed) and classified as passed or failed. It can also be used where one or a number of items are tested repeatedly. The procedures are based on the assumption that the probability of success or failure is the same from trial to trial (statistically independent events). Plans for fixed trial/failure terminated tests as well as truncated sequential probability ratio tests (SPRTs) are included. This document contains extensive tables with ready-to-use SPRT plans and their characteristics for equal and non-equal risks for supplier and customer. In the case of the reliability compliance tests for constant failure rate/intensity, IEC 61124 applies. This second edition cancels and replaces the first edition published in 1991. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The sequential probability ratio test (SPRT) [1, 2][1] has been significantly developed in recent years [3, 4, 5]. This edition contains shorter and accurate tests, a wide range of test plans, and significant additional characteristic data, as follows: the tests are significantly truncated (the maximum trial numbers are low) without substantially increasing the expected number of trials to decision (ENT); the true producer’s and consumer’s risks (α', β') are given and very close to the nominal (α, β); the range of the test parameters is wide (failure ratio, risks and discrimination ratio); the test plans include various risk ratios (not restricted to equal risks only); the values of ENT are accurate and given in the relevant region (for practical use); guidelines for extension of the test sets (interpolation and extrapolation) are included. In Annex C, the use of the cumulative binomial distribution function of Excel that simplifies the procedure of designing has been added (Clause C.3). Keywords: verify if a reliability of an item/system complies with the stated requirements

  • Standard
    52 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60812:2018(Main)
Failure modes and effects analysis (FMEA and FMECA)
SIST EN IEC 60812:2018

IEC 60812:2018 explains how failure modes and effects analysis (FMEA), including the failure modes, effects and criticality analysis (FMECA) variant, is planned, performed, documented and maintained. The purpose of failure modes and effects analysis (FMEA) is to establish how items or processes might fail to perform their function so that any required treatments could be identified. An FMEA provides a systematic method for identifying modes of failure together with their effects on the item or process, both locally and globally. It may also include identifying the causes of failure modes. Failure modes can be prioritized to support decisions about treatment. Where the ranking of criticality involves at least the severity of consequences, and often other measures of importance, the analysis is known as failure modes, effects and criticality analysis (FMECA). This document is applicable to hardware, software, processes including human action, and their interfaces, in any combination. An FMEA can be used in a safety analysis, for regulatory and other purposes, but this being a generic standard, does not give specific guidance for safety applications. This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition: a) the normative text is generic and covers all applications; b) examples of applications for safety, automotive, software and (service) processes have been added as informative annexes; c) tailoring the FMEA for different applications is described; d) different reporting formats are described, including a database information system; e) alternative means of calculating risk priority numbers (RPN) have been added; f) a criticality matrix based method has been added; g) the relationship to other dependability analysis methods have been described. Keywords: failure modes and effects analysis (FMEA), failure modes effects and criticality analysis (FMECA)

  • Standard
    80 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 62853:2018(Main)
Open systems dependability
SIST EN IEC 62853:2018

IEC 62853:2018 provides guidance in relation to a set of requirements placed upon system life cycles in order for an open system to achieve open systems dependability. This document elaborates on IEC 60300-1 by providing details of the changes needed to accommodate the characteristics of open systems. It defines process views based on ISO/IEC/IEEE 15288:2015, which identifies the set of system life cycle processes. This document is applicable to life cycles of products, systems, processes or services involving hardware, software and human aspects or any integrated combinations of these elements. For open systems, security is especially important since the systems are particularly exposed to attack. This document can be used to improve the dependability of open systems and to provide assurance that the process views specific to open systems achieve their expected outcomes. It helps an organization define the activities and tasks that need to be undertaken to achieve dependability objectives in an open system, including dependability related communication, dependability assessment and evaluation of dependability throughout system life cycles. Keywords: dependability of open systems

  • Standard
    74 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN 62550:2017(Main)
Spare parts provisioning
SIST EN 62550:2017

IEC 62550:2017 describes requirements for spare parts provisioning as a part of supportability activities that affect dependability performance so that continuity of operation of products, equipment and systems for their intended application can be sustained. This document is intended for use by a wide range of suppliers, maintenance support organizations and users and can be applied to all items.
Keywords: necessary spare parts

  • Standard
    56 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN 61078:2016(Main)
Reliability block diagrams
SIST EN 61078:2017

IEC 61078:2016 this International Standard describes: - the requirements to apply when reliability block diagrams (RBDs) are used in dependability analysis; - the procedures for modelling the dependability of a system with reliability block diagrams; - how to use RBDs for qualitative and quantitative analysis; - the procedures for using the RBD model to calculate availability, failure frequency and reliability measures for different types of systems with constant (or time dependent) probabilities of blocks success/failure, and for non-repaired blocks or repaired blocks; - some theoretical aspects and limitations in performing calculations for availability, failure frequency and reliability measures; - the relationships with fault tree analysis (see IEC 61025) and Markov techniques (see IEC 61165). This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the structure of the document has been entirely reconsidered, the title modified and the content extended and improved to provide more information about availability, reliability and failure frequency calculations; - Clause 3 has been extended and clauses have been introduced to describe the electrical analogy, the "non-coherent" RBDs and the "dynamic" RBDs; - Annex B about Boolean algebra methods has been extended; - Annex C (Calculations of time dependent probabilities), Annex D (Importance factors), Annex E (RBD driven Petri net models) and Annex F (Numerical examples and curves) have been introduced. Keywords: reliability block diagram (RBD)

  • Standard
    121 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN 61882:2016(Main)
Hazard and operability studies (HAZOP studies) - Application guide
SIST EN 61882:2016

IEC 61882:2016 is available as IEC 61882:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61882:2016 provides a guide for HAZOP studies of systems using guide words. It gives guidance on application of the technique and on the HAZOP study procedure, including definition, preparation, examination sessions and resulting documentation and follow-up. Documentation examples, as well as a broad set of examples encompassing various applications, illustrating HAZOP studies are also provided. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - clarification of terminology as well as alignment with terms and definitions within ISO 31000:2009 and ISO Guide 73:2009; - addition of an improved case study of a procedural HAZOP. Keywords: HAZOP, risks and operability problems

  • Standard
    62 pages
    English language
    sale 10% off
    e-Library read for
    1 day