BS IEC 61508-4 : 98 AMD 13782

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions and abbreviations
    3.1 Safety terms
    3.2 Equipment and devices
    3.3 Systems: general aspects
    3.4 Systems: safety-related aspects
    3.5 Safety functions and safety integrity
    3.6 Fault, failure and error
    3.7 Lifecycle activities
    3.8 Confirmation of safety measures
Annex A (informative) Bibliography
Index
Figures
1 Overall framework of this standard
2 Programmable electronic system (PES): structure and
    terminology
3 Electrical/electronic/programmable electronic system
    (E/E/PES): structure and terminology
4 Failure model
Table
1 Abbreviations used in this standard

Gives definitions and explanation of terms that are used in parts 1 to 7 of this standard. Definitions are grouped under general headings so that related terms can be understood within the context of each other. However, these headings are not intended to add meaning to the definitions, and in this instance the headings should be disregarded.