Safety engineering SFEN

(modified)

Applying appropriate methods to assure safety during all life cycle phases of safety-related systems developments.

Guidance notes

(new)

Safety-critical systems are those in which a system failure could harm human life, other living things, physical structures, or the environment. 

Activities may include - but are not limited to...

  • safety hazard and risk analysis
  • safety requirements specification
  • safety-related system architectural design
  • formal method design
  • safety validation and verification
  • safety case preparation
  • applying generic safety standards such as IEC 61508, IEC 61511 or industry specific safety standards

System safety is engineered and measured by safety levels based on hazard and risk analysis.

Safety engineering: Level 6

(modified)

Takes full responsibility for hazard analysis and risk evaluation, safety-related system architectural design and safety compliance planning.

Leads the definition and allocation of safety requirements for the system, according to system's nature and required safety level.

Takes responsibility for the safety-related aspects of multiple complex or high safety integrity level projects.

Safety engineering: Level 5

(modified)

Identifies and analyses hazards and contributes to the identification and evaluation of risk reduction measures, ensuring these are adequately documented.

Specifies safety-related systems architectures for defined safety levels.

Develops and maintains project safety assurance plans. Monitors implementation, compliance and ensures that safety assurance evidence is gathered for safety case preparation.

Works with system architects, designers and developers to assure safety requirements implementation.

Safety engineering: Level 4

(modified)

Contributes to the identification, analysis and documentation of hazards and safety risks using agreed methods and procedures.

Contributes to the specification of safety requirements.

Analyses and documents safety validation results during the system development and implementation.

Contributes to the development and maintenance of project safety assurance plans, and gathers safety assurance evidence for safety case preparation.

Safety engineering: Level 3

(modified)

Assists in hazard and risk analysis during the system development and implementation using agreed methods and procedures. Documents the results of hazard and risk analysis activities.

Assists with the collection of safety assurance evidence using appropriate methods and tools.

Undertakes all work in accordance with agreed safety, technical and quality standards.