AS 61508.4-1999

1 - AS 61508.4-1999 Functional safety of electrical/electronic/programmable electronic safety-related systems - Definitions and....
4 - PREFACE
5 - CONTENTS
6 - INTRODUCTION
9 - 1 Scope
11 - 2 Normative references
12 - 3 Definitions and abbreviations
12 - 3.1 Safety terms
12 - 3.1.1 harm
12 - 3.1.2 hazard
12 - 3.1.3 hazardous situation
12 - 3.1.4 hazardous event
12 - 3.1.5 risk
12 - 3.1.6 tolerable risk
13 - 3.1.7 residual risk
13 - 3.1.8 safety
13 - 3.1.9 functional safety
13 - 3.1.10 safe state
13 - 3.1.11 reasonably foreseeable misuse
13 - 3.2 Equipment and devices
13 - 3.2.1 functional unit
13 - 3.2.2 software
13 - 3.2.3 equipment under control (EUC)
14 - 3.2.4 EUC risk
14 - 3.2.5 programmable electronic (PE)
14 - 3.2.6 electrical/electronic/programmable electronic (E/E/PE)
14 - 3.2.7 limited variability language
15 - 3.3 Systems: general aspects
15 - 3.3.1 system
15 - 3.3.2 programmable electronic system (PES)
15 - 3.3.3 electrical/electronic/programmable electronic system (E/E/PES)
15 - 3.3.4 EUC control system
15 - 3.3.5 architecture
15 - 3.3.6 module
15 - 3.3.7 software module
17 - 3.3.8 channel
17 - 3.3.9 diversity
17 - 3.3.10 redundancy
17 - 3.4 Systems: safety-related aspects
17 - 3.4.1 safety-related system
18 - 3.4.2 other technology safety-related system
18 - 3.4.3 external risk reduction facility
18 - 3.4.4 low complexity E/E/PE safety-related system
18 - 3.4.5 logic system
18 - 3.5 Safety functions and safety integrity
18 - 3.5.1 safety function
18 - 3.5.2 safety integrity
19 - 3.5.3 software safety integrity
19 - 3.5.4 systematic safety integrity
19 - 3.5.5 hardware safety integrity
19 - 3.5.6 safety integrity level (SIL)
19 - 3.5.7 software safety integrity level
19 - 3.5.8 safety requirements specification
20 - 3.5.9 safety functions requirements specification
20 - 3.5.10 safety integrity requirements specification
20 - 3.5.11 safety-related software
20 - 3.5.12 mode of operation
20 - 3.5.13 target failure measure
20 - 3.5.14 necessary risk reduction
21 - 3.6 Fault, failure and error
21 - 3.6.1 fault
21 - 3.6.2 fault avoidance
21 - 3.6.3 fault tolerance
21 - 3.6.4 failure
21 - 3.6.5 random hardware failure
22 - 3.6.6 systematic failure
23 - 3.6.7 dangerous failure
23 - 3.6.8 safe failure
23 - 3.6.9 dependent failure
23 - 3.6.10 common cause failure
23 - 3.6.11 error
23 - 3.6.12 human error mistake
23 - 3.7 Lifecycle activities
23 - 3.7.1 safety lifecycle
24 - 3.7.2 software lifecycle
24 - 3.7.3 configuration management
24 - 3.7.4 impact analysis
24 - 3.8 Confirmation of safety measures
24 - 3.8.1 verification
24 - 3.8.2 validation
25 - 3.8.3 functional safety assessment
25 - 3.8.4 functional safety audit
25 - 3.8.5 proof test
25 - 3.8.6 diagnostic coverage
25 - 3.8.7 diagnostic test interval
25 - 3.8.8 detected
26 - 3.8.9 undetected
26 - 3.8.10 independent person
26 - 3.8.11 independent department
26 - 3.8.12 independent organisation
26 - 3.8.13 animation
26 - 3.8.14 dynamic testing
26 - 3.8.15 test harness
27 - Annex A - Bibliography
28 - INDEX

Provides the definitions and abbreviations used in other parts of this series of Standards. The Standard is identical with and has been reproduced from IEC 61508-4:1998.

First published as AS 61508.4-1999.