Consecutive if same day span over a break?

[Liviu Lalescu]

I have a question, related to http://lalescu.ro/liviu/fet/forum/index.php?topic=2603.msg14012#msg14012 :

A constraint min days between activities, with force consecutive if same day = true. Can (should) two activities if on the same day span over a break?

In the present, two activities cannot be consecutive on the same day over a break if force consecutive is selected.

If I make this change, to allow spread over a break, I cannot undo it in subsequent FET versions.

Please try to give your opinion, it is an important question.

If you vote, please also write below a reply, so I know your name, and an explanation for your vote.

[Benahmed Abdelkrim]

  I think it's a good idea, so the number of possible combination will be increased, the constraint will ease the algorithm, may be also the production time will be better.
My opinion: I agree.
I voted yes

[Liviu Lalescu]

If you vote, please also write below a reply, so I know your name, and an explanation for your vote.

[Devrim Altınkurt]

I voted "YES".

because we have many lessons with duration 8+.
and all theese lessons must be on the same day. (sample: 5h + break + 5h)

Devrim Altınkurt

[Liviu Lalescu]

Thank you for the vote and the explanation, Devrim Altinkurt

Until the moment I will maybe modify this, you can deactivate the min days between activities constraints and use two activities consecutive or grouped constraints. Or you can remove the break constraint and decrease the number of hours per day.

[Vangelis Karafillidis]

I voted "Yes, change it: span over break is allowed", because I think that practically it is more "reasonable".

[donjon]

I voted "Yes" I do do use votes but don't allow misfits making doubles.... however, if I did need to use that I would be happy to have the classes spanning a break.

[Liviu Lalescu]

Thank you for your vote!

[mouiata]

yes

[flauta]

I vote yes

I have many teachers who have 12-14 hours per week (5 days) in a single class, the grouping of activities is 3+3+3+3+2
and now FET does not consider the possibility of spreading the block in the day: this way the 3-hours blocks don't fit in the
2-hours afternoon period. But breaking the block (1 hour last morning + 2 hours afternoon) across the lunch break would resolve
and keep the consecution of hours.

Let me know if I understand and your change could resolve this problem.
Thanks

[Liviu Lalescu]

I vote yes

I have many teachers who have 12-14 hours per week (5 days) in a single class, the grouping of activities is 3+3+3+3+2
and now FET does not consider the possibility of spreading the block in the day: this way the 3-hours blocks don't fit in the
2-hours afternoon period. But breaking the block (1 hour last morning + 2 hours afternoon) across the lunch break would resolve
and keep the consecution of hours.

Let me know if I understand and your change could resolve this problem.
Thanks

No, my question relates to something else. Relates for instance if your activity is split into 3+2+1, then FET will place the 2+1 in an afternoon. But it cannot place the 3, because an activity with duration 3 cannot be divided.

I would suggest you to simply not add the break in the timetable.

[Devrim Altınkurt]

I have a question, related to http://lalescu.ro/liviu/fet/forum/index.php?topic=2603.msg14012#msg14012 :

A constraint min days between activities, with force consecutive if same day = true. Can (should) two activities if on the same day span over a break?

In the present, two activities cannot be consecutive on the same day over a break if force consecutive is selected.

If I make this change, to allow spread over a break, I cannot undo it in subsequent FET versions.

Please try to give your opinion, it is an important question.

If you vote, please also write below a reply, so I know your name, and an explanation for your vote.

Hi, is there any progress about this?

[Liviu Lalescu]

Hi, is there any progress about this?

Actually, no, because I am still not convinced it is a good thing.

[Devrim Altınkurt]

Hi, is there any progress about this?

Actually, no, because I am still not convinced it is a good thing.

let me explain this,
maybe i can convince you

let say we have 1 day and 11 hours, one student group and one teacher.

time plan:
5h + 1break +5h

let say we have 3 subject:
A: 7h
B: 2h
C: 1h

how can you place this 3 subject to time plan?

1 possibility:
C+A+A+A+A+Break+A+A+A+B+B

another possibility:
B+B+C+A+A+Break+A+A+A+A+A

one another:
B+B+A+A+A+Break+A+A+A+A+C


*** --- ***

in our school we have many lessons which have 5+ hours
time plan: 5h+break+6h

if i split this lesson, there will be many empty hours for students.

if i do that: add a subject with 10h, and split 10 times (1+1+...+1) and add "two acts grouped" for all subacts.
1-2 grouped,
2-3 grouped,
3-4 grouped,
...
9-10 grouped.

maybe it will be the solution for this lesson.


but the others?

how can you help me?
best regards.

[Volker Dirr]

one problem might be that it will have got a negative effect on their lessons/timetables.

for example if a school has got 2+2 hours activities with weight less then 100%.
in that case they might get a 1+break+3 hour, even they don't like that. especialy if that are schools with 1 fet hour = 30 minutes only. such a single 30 minutes hour will be useless for them.

or schools with even 15 minutes = 1 FET hour might get even more into trouble now. such 15 minutes efore of after a break. nearly nonsense for such schools.