Lesson number 76 in the Demo2.gpn file is used here as an example. This is a coupled lesson with four classes (1a, 1b, 2a and 2b).
For reasons of simplicity teacher, class and subject factors are not considered in this example.
The following date limits are now entered for the classes under “Master Data | Classes”: for class 1a from 03.10. to 29.02. and for class 1b from 05.12. to 31.03. The overlap of the two date limits is thus 05.12. to 29.2. This time limitatiom lasting 13 weeks (including holidays) is used for calculating the value for lesson 76 (limitation factor : 41 / 13 = 0.3171).

The value for the lesson is the product of weekly periods and time limitation factor: 2 * 0.3171 = 0.634

If you now enter a time limitation for the lesson, e.g. 01.02. to 31.05 (18 weeks), this will apply to the entire coupling. All other time limitations will be overridden.
The limitation factor is now based on the new time limitation: 18 / 41 = 0.439.
The new value for the lesson is again the product of weekly periods and time limitation factor: 2 * 0.439 = 0.878.
