Safety Lifecycle - Concept to Decommission

  CONCEPT PHASE (Part 3)
  ├── Item definition
  ├── Hazard Analysis & Risk Assessment (HARA)
  ├── Safety Goals (ASIL rating)
  └── Functional Safety Concept (FSC)
         │                                    │
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  SYSTEM LEVEL (Part 4)             SYSTEM INTEGRATION TEST
  ├── Technical Safety Requirements           ├── System safety validation
  ├── System architecture design             └── ASIL-appropriate test methods
  └── Hardware-Software Interface (HSI)
         │                                    │
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  HARDWARE LEVEL (Part 5)          HW INTEGRATION TEST
  ├── Hardware design                         ├── Diagnostic coverage verification
  ├── SPFM/LFM/PMHF calculation              └── Random failure rate test
  └── Hardware safety analysis
         │                                    │
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  SOFTWARE LEVEL (Part 6)          SW INTEGRATION TEST
  ├── Software safety requirements            ├── Interface testing
  ├── Software architecture                  ├── Back-to-back testing
  ├── Unit design                            └── Coverage measurement
  └── Unit implementation
                   │
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         SW UNIT TEST (MC/DC, etc.)

  Supporting processes (Part 8) run throughout all phases:
  configuration management, tool qualification, documentation, reviews