Risk Assessment

Many forms of Functional Safety (IEC 61508)

Approach to Risk Assessment & Hazards Analysis

• Classifications (Mix of IEC 62304 and IEC 61508 SIL definitions):
  • Class A: No injury or damage to health is possible.
  • Class B: Injury is possible, but not serious.
  • Class C: Death or serious injury is possible.

Approach to Software Systems Safety (ISO 62304)

Difference in Class

Class B

VS Class C/ Lvl A/ SIL 4