| Effect | Rank | Criteria |
| Almost certain | 1 | Proven detection methods available in concept stage |
| Very high | 2 | Proven computer analysis available in early design stage |
| High | 3 | Simulation and/or modeling in early stage |
| Moderately high | 4 | Tests on early prototype system elements |
| Medium | 5 | Tests on preproduction system components |
| Low | 6 | Tests on similar system components |
| Slight | 7 | Tests on product with prototypes and system components installed |
| Very slight | 8 | Proving durability tests on products with system components installed |
| Remote | 9 | Only unproven or unreliable technique(s) available |
| Almost impossible | 10 | No known techniques available |