| High | Impact Medium | Low | ||
| High | 1 | 2 | 3 | |
| Urgency | Medium | 2 | 3 | 4 |
| Low | 3 | 4 | 5 | |
| Priority code | Description | Target resolution time |
| 1 | Critical | 1 hour |
| 2 | High | 8 hours |
| 3 | Medium | 24 hours |
| 4 | Low | 48 hours |
| 5 | Planning | Planned |
| Note: A third aspect defining priority, namely expected effort, is not incorporated in this model. | ||