02/205333 DC : DRAFT MAY 2002

1 Scope
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Management of functional safety
   4.1 Objective
   4.2 Requirements
5 Requirements for the specification of safety - related
   control functions
   5.1 Objective
   5.2 Specification of requirements for safety - related
        control functions
6 Design and integration of the safety - related
   electrical control system
   6.1 Objective
   6.2 General requirements
   6.3 Requirements for behaviour (of the SRECS) on the
        detection of a fault in the SRECS
   6.4 Requirements for the systematic safety integrity
   6.5 Selection of safety - related electrical control
        system
   6.6 Safety - related electrical control system (SRECS)
        design and development
   6.7 Realisation of subsystems
   6.8 Realisation of diagnostic functions
   6.9 Hardware implementation
   6.10 Software safety requirements specification
   6.11 Software design and development
   6.12 Safety - related electrical control system
        integration and testing
7 Information for use of the SRECS
   7.1 General
   7.2 Technical documentation
   7.3 Documentation for maintenance
8 Validation of the safety - related electrical control
   systems
   8.1 General requirements
   8.2 Requirements for systematic safety integrity during
        SRECS validation
9 Modification
   9.1 Objective
   9.2 Modification procedure
10 Documentation
   10.1 The documentation shall:
Annex A (informative) SIL Assignment
      A.1 Introduction
      A.2 Projected Use Of The Methodology
      A.3 Integration into the Framework of prEn ISO/FDIS 12100
      A.4 Limits of this methodology
      A.5 Use of the SIL Assignment Methodology
Annex B (informative)
Annex C (informative)
      C.1 Introduction
      C.2 Software product requirements
      C.3 Software development process requirements
      C.4 Tools: Development tool requirements
      C.5 External subcontracting requirements
      C.6 Reproduction, Delivery
      C.7 Software verification and validation requirements
      C.8 General verification and validation requirements
      C.9 Verification requirements: Review requirements
      C.10 Software test requirements
Annex D (informative)
Annex E (informative) Failure modes of electrical/electronic
                      components