Allow overlaping

[karai]

Hi,
First of all, sorry for my poor english.
I just discovered fet, and have a question.
Is possible to allow overlaping on the timetable?

For example a teacher can do 29 activities, but the week only has 25 periods allowed to use.

It's possible than FET overlap the 4 activities on the timetable with other activities?

The case is a school with few students and the teachers can do two activities at the same time with two different groups.

Thank you very much

[Liviu Lalescu]

You need to add, for each one of these 4 activities, two students sets. In FET, it is allowed to have more teachers or students sets per activity.

[karai]

I think, I haven't explained correct.

I have 5 subjects every subject divided with 5 activities per week, and all the subjects are from the same teacher and the same group.

The week has 5 days, with 5 activities each day then 25 Activities.

With that values fet make the timetable.

Now the problem, I add a new subject. This subject is from the same teacher, but diferent group, and has 4 diferent activities.
The teacher has all the week full, but i want to assign this 4 new activities to the same teacher, because is a different group.

Then, It's possible than FET overlap the 4 activities?

[Liviu Lalescu]

The direct answer: No (it is impossible). In FET you need to respect the basic time constraints. You may be able to modify FET sources, but it is very difficult/complicated and probably unneeded.

But you still can use tricks (which might work perfectly):

a) The best trick, probably: add a dummy teacher, the pair of the real one, with only these 4 activities;

b) Use dummy FET rooms as the extra 4 activities of the teacher.

Maybe there are possible other tricks.

[karai]

Ok!
Perfect solution!
Now I have to search the activities to overlap.

Can I say with FET that a subject A of a group A must be at the same time that a subject B of the group B?

Thanks for your help Liviu

[Liviu Lalescu]

Ok!
Perfect solution!
Now I have to search the activities to overlap.

If you don't want to search by yourself, there is other possible trick: a real teacher = two FET rooms, second room is not available in 25-1=24 slots which you choose with constraint room not available. This may not suit your case. I just wanted to give you the idea, so you may consider it, if it is useful.

Edited to add: FET will allocate activities to rooms. The preferred rooms for the 25+4 activities of the real teacher are these two FET rooms.

Can I say with FET that a subject A of a group A must be at the same time that a subject B of the group B?

Two variants:

1) My preferred one: dummy subject A_B, then each activity has subject A_B and students A and B.

2) Constraint activities same starting time (day+hour).

Thanks for your help Liviu

You're welcome :-)