NAS® can calculate the time required for the document execution. All activities needed for document execution are identified, and to all of them the time needed for their execution is determined. The final result is occupancy of each individual resource type.

The system leads the average times required to complete each activity, which may depend on the material, and routes. Since the system measures duration of individual operation phases the data aquired can be used to estimate and repair the predefined times needed for activity execution. At the same time deviations can be measured, which may show the need for additional activities partitioning.