Criteria | Scale | Description |
A1: Importance of condition | 4 | Important to national/international interest |
| 3 | Important to regional/national interest |
| 2 | Important to areas immediately outside the local condition |
| 1 | Important only to local condition |
| 0 | No importance |
A2: Magnitude of change/effect | +3 | Major positive benefits |
| +2 | Significant improvement in status quo |
| +1 | Improvement in status quo |
| 0 | No change/status quo |
| −1 | Negative change in status quo |
| −2 | Significant negative change |
| −3 | major change |
B1: Permanence | 1 | No change/not applicable |
| 2 | Temporary |
| 3 | Permanent |
| 1 | No change/not applicable |
| 2 | Reversible |
| 3 | Irreversible |
B3: Cumulative | 1 | No change/not applicable |
| 2 | Non-cumulative/single |
| 3 | Cumulative/synergistic |