The DOE Method defines four levels of workability, which are given in the following table.
| Description | Slump Range | Vebe Time Range | |
| mm | In. | Seconds | |
| Very low | 0 to 10 | 0 to | >12 |
| Low | 10 to 30 | to 1 | 12 to 6 |
| Normal | 30 to 60 | 1 to 2 | 6 to 3 |
| High | 60 to 180 | 2 to 7 | 3 to 0 |