# Risk Evaluation Model

Risk Score = Probability × Impact

## Probability Scale

| Value | Meaning |
|---|---|
0.1 | unlikely |
0.3 | possible |
0.6 | likely |
0.9 | almost certain |

## Impact Scale

| Value | Meaning |
|---|---|
1 | minor |
3 | moderate |
5 | severe |

## Threshold

Risk > 3 → mitigation required

Risk > 4 → defer feature