IEC PAS 62508:2007

Guidance on human factors engineering for system life cycle applications

This PAS describes the process on human factors (HF) influencing system dependability design and provides HF methods and practices applicable to system life-cycle implementation to achieve dependability performance.

General Information

• Status: Replaced
• Publication Date: 24-Jun-2007
• ICS: 03.100.40 - Research and development
• ICS: 03.120.01 - Quality in general
• Technical Committee: TC 56 - Dependability
• Drafting Committee: WG 3 - TC 56/WG 3
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 29-Jun-2010

Relations

• Replaced By: IEC 62508:2010 - Guidance on human aspects of dependability
• Effective Date: 05-Sep-2023

Standards Content (Sample)

PUBLICLY
IEC
AVAILABLE
PAS 62508
SPECIFICATION
First edition
Pre-Standard
2007-06
Guidance on human factors engineering
for system life cycle applications

Reference number
IEC/PAS 62508:2007(E)
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PUBLICLY
IEC
AVAILABLE
PAS 62508
SPECIFICATION
First edition
Pre-Standard
2007-06
Guidance on human factors engineering
for system life cycle applications

PRICE CODE
Commission Electrotechnique Internationale U

International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – PAS 62508 © IEC:2007(E)
CONTENTS
FOREWORD.4

INTRODUCTION.5

1 Scope.6

2 Normative references .6

3 Terms and definitions .6
4 HF and its influence.7
4.1 Understanding the HF relationships.7
4.2 Human machine comparison .7
4.3 HF engineering process .8
4.4 HF in system life cycle .8
4.5 The importance of HF designs.9
4.6 HF design criteria .10
5 HF activities implementation.11
5.1 HF planning.11
5.2 HF requirements analysis in system definition .11
5.3 HF analysis in system design .12
5.4 Incorporating HF in system requirements .12
5.5 Integrating HF in systems engineering.12
5.6 Outsourcing projects and related HF issues .13
5.7 HF assessment in system operation/maintenance .14
6 HF methods.14
6.1 Classification of HF methods .14
6.2 Applications of HF methods.15

Annex A (informative) HF engineering process concerning task analyses for human-
system interactions.17
A.1 HF engineering process for system application scenarios .17
A.2 HF engineering process for application environment.17
A.3 HF engineering process for requirements analysis.17

A.4 HF engineering process for functional analysis.17
A.5 HF engineering process for function allocation .18
A.6 HF engineering process for tasks design and analysis.18
A.7 HF engineering process for human interface.18
A.8 HF engineering process for requirements reviews .18
Annex B (Informative) Summary of HF design influence and impact on system
dependability.19
B.1 Automation .19
B.2 Design for maintenance.19
B.3 Computer-human interface .20
B.4 Incorporation of displays, controls and alarm functions.20
B.5 Incorporation of input devices.21

PAS 62508 © IEC:2007(E) – 3 –
B.6 Environment .21

B.7 Safety.21

B.8 Security.21

Annex C (Informative) Summary of methods for HF analysis, design and development

and test and evaluation .22

C.1 HF analysis methods .22

C.2 HF methods for design and development.24

C.3 HF methods for test and evaluation .25

C.4 Summary of application areas for HF methods.26

Bibliography.27

Figure 1 – Human factors influence in the system life cycle process .9

Table C.1 – Summary of application areas for HF methods .26

– 4 – PAS 62508 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
GUIDANCE ON HUMAN FACTORS ENGINEERING

FOR SYSTEM LIFE CYCLE APPLICATIONS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.
A PAS is a technical specification not fulfilling the requirements for a standard but made
available to the public.
IEC-PAS 62508 has been processed by technical committee 56: Dependability.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document:
Draft PAS Report on voting
56/1163/PAS 56/1184/RVN
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned will transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of three years starting from
2007-06. The validity may be extended for a single three-year period, following which it shall
be revised to become another type of normative document or shall be withdrawn.

PAS 62508 © IEC:2007(E) – 5 –
INTRODUCTION
This PAS provides technical information on human factors (HF) for engineering and

implementation of systems. It fills the urgent need for an HF standard currently not available

among the ISO or IEC standards.

HF is one of the key system elements that have significant influence on the system design to

achieve dependability performance and service quality. This PAS provides guidance and

criteria to facilitate the incorporation of HF requirements in system development and

operation. It permits practical HF applications and design trade-offs with other key system

hardware and software elements for cost-effective implementation. The technical contents of

this PAS are based on human engineering standards and guidelines established by the FAA
and NASA. Technical approaches and HF methods are adopted from industry best practices
suitable for systems engineering applications.
The HF and human reliability knowledge base covers a broad scope of technical and scientific
work. This PAS focuses on the engineering aspects for HF applications in the system life-
cycle process. It does not address the human reliability issues involving the study of human
anatomy, anthropometry, biomechanics, physiology, and psychology affecting system design
and operation with human interactions.

– 6 – PAS 62508 © IEC:2007(E)
GUIDANCE ON HUMAN FACTORS ENGINEERING

FOR SYSTEM LIFE CYCLE APPLICATIONS

1 Scope
This PAS describes the proce
...