SaS | STPA | STPA-sec |
1)-Scope and context asset identification | 1)-Identify accidents and hazard | 1)-Determining unacceptable losses |
2)-Determination of dependability objectives | 2)-Construct functional control structure | 2)-Creating a model of the high level control structure-HLCS |
3)-Risk analysis and assessment | 3)-Identify unsafe control actions | 3)-Identifying unsafe/unsecure control actions |
4)-Risk treatment | 4)-Identify causal factors and control flaws | 4)-Developing security requirements and constraints |
5)-Dependability requirements definition |
| 5)-Identifying casual scenarios |
6)-Constraint selection and implementation |
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