A numerical summary of bow-tie model elements
| Measurement | Experts | Students |
|---|---|---|
| Number of participants | 3 | ∼30 |
| Number of models | 3 | 13 |
| Total number of threats | 18 | 49 |
| Number of distinct threats | 12 | 14 |
| Average number of threats per model | 6 | 3.8 |
| Total number of consequences | 10 | 27 |
| Number of distinct consequences | 8 | 9 |
| Average number of consequences per model | 3.3 | 2.1 |
| Total number of preventive barriers | 16 | 41 |
| Number of distinct preventive barriers | 10 | 9 |
| Average number of preventive barriers per model | 5.3 | 3.2 |
| Total number of reactive barriers | 6 | 6 |
| Number of distinct reactive barriers | 4 | 3 |
| Average number of reactive barriers per model | 2 | 0.5 |
| Common (threats/consequences)/(preventive/reactive) barriers | 7/5/3/0 | |
| Measurement | Experts | Students |
|---|---|---|
| Number of participants | 3 | ∼30 |
| Number of models | 3 | 13 |
| Total number of threats | 18 | 49 |
| Number of distinct threats | 12 | 14 |
| Average number of threats per model | 6 | 3.8 |
| Total number of consequences | 10 | 27 |
| Number of distinct consequences | 8 | 9 |
| Average number of consequences per model | 3.3 | 2.1 |
| Total number of preventive barriers | 16 | 41 |
| Number of distinct preventive barriers | 10 | 9 |
| Average number of preventive barriers per model | 5.3 | 3.2 |
| Total number of reactive barriers | 6 | 6 |
| Number of distinct reactive barriers | 4 | 3 |
| Average number of reactive barriers per model | 2 | 0.5 |
| Common (threats/consequences)/(preventive/reactive) barriers | 7/5/3/0 | |
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