A table that contains the times required to perform a task (norm times), or the numbers of times that a task can be performed in a specific unit of time (norm units). The norm times or norm units depend on two series of values presented in the columns (X-axis) and the rows (Y-axis) of the table.
Example
The time that it costs to drill a hole depends on the material's thickness, and the hole's diameter. A norm table that contains norm times can look like this:
| Thickness (mm) | ||||
|---|---|---|---|---|
| Diameter (mm) | 1 | 2 | 3 | 4 |
| 0.5 | 1.2 | 1.4 | 1.6 | 1.8 |
| 1.0 | 2.2 | 2.5 | 2.8 | 3.1 |
| 1.5 | 3.1 | 3.5 | 3.9 | 4.3 |
The norm time to drill a hole with diameter 1.0 in a material with thickness 2 is 2.5.