FET Forum - Custom FET for Algerian schools (for user aissa)

Liviu Lalescu

YaBB Administrator

Offline

FET author and forum admin

Posts: 1569
Craiova, Romania
Gender: male

Custom FET for Algerian schools (for user aissa)
09/17/08 at 04:54:43

Features are:

This is a school which has lessons morning and afternoon and students and teachers must have at least 2 days in morning or in the afternoon.

You should input in FET 2*n_real_days

Day 1 represents morning 1, day 2 represents afternoon 1, day 3 represents morning 2, etc.

Intelligent (flexible) students min hours daily, allowing 0 hours in a day

The constraints min days between activities are modified so that they take care of real days.

The constraints: teacher(s) max days per week, and max hours daily for teachers and students are modified to take care of real days (added on 30 August 2009)

The links are: (modified 31 August 2009)

http://lalescu.ro/liviu/fet/download/custom/algeria/

(You have there a readme file with explanations and a sample file).

or, mirror:

http://timetabling.de/download/custom/algeria/

Back to top

« Last Edit: 09/28/09 at 12:45:38 by Liviu Lalescu »

IP Logged

alfaromeo

Senior Member

Offline

I Love Free Software!

Posts: 436
Morroco
Gender: male

Re: Custom FET for aissa (Algerian schools)
Reply #1 - 09/24/08 at 10:40:53

many thanks to Liviu on behalf of Aissa and pther algerian users
there is still problems
How to set maximum periods per day for teachers ?
there should be no more than 5 periods in a REAL day
Now, if we set "maximum periods per day for teachersé" ---> 4
we will get 4 periods on FET_day 1
then
3 periods on FET_day 2 ( there is only 3 timeslots at afternoon)
So there will be 7 hours per day for a teacher !!

Another problem
if we have 1 large activity split into 5 activity
A1 duration 2
A2 duration 2
A3 duration 1
A4 duration 1
A5 duration 1

For example, how to avoid scheduling A1+A3 ( 3hours same subjec !!) same day
This can happen because constraint : "if actvities on same day, force consecutive"

Back to top

IP Logged

Liviu Lalescu

YaBB Administrator

Offline

FET author and forum admin

Posts: 1569
Craiova, Romania
Gender: male

Re: Custom FET for aissa (Algerian schools)
Reply #2 - 09/24/08 at 11:46:23

alfaromeo wrote on 09/24/08 at 10:40:53:

many thanks to Liviu on behalf of Aissa and pther algerian users
there is still problems
How to set maximum periods per day for teachers ?
there should be no more than 5 periods in a REAL day
Now, if we set "maximum periods per day for teachersé" ---> 4
we will get 4 periods on FET_day 1
then
3 periods on FET_day 2 ( there is only 3 timeslots at afternoon)
So there will be 7 hours per day for a teacher !!

I'll think about and let you know on this topic.

alfaromeo wrote on 09/24/08 at 10:40:53:

Another problem
if we have 1 large activity split into 5 activity
A1 duration 2
A2 duration 2
A3 duration 1
A4 duration 1
A5 duration 1

For example, how to avoid scheduling A1+A3 ( 3hours same subjec !!) same day
This can happen because constraint : "if actvities on same day, force consecutive"

You have constraint min n days between activities, 1 day, 95%, A1, A2, A3, A4, A5. Either:

1) you modify the weight to 100% (but might be too strong)

or

2) you add additional constraints: (A1, A3, 100%, 1 day), (A1, A4, 100%, 1 day), (A1, A5, 100%, 1 day), (A2, A3, 100%, 1 day), (A2, A4, 100%, 1 day), (A2, A5, 100%, 1 day), (A1, A2, 100%, 1 day) - so 7 additional constraints, which is difficult to add.

Back to top

IP Logged

Liviu Lalescu

YaBB Administrator

Offline

FET author and forum admin

Posts: 1569
Craiova, Romania
Gender: male

Re: Custom FET for aissa (Algerian schools)
Reply #3 - 09/24/08 at 12:57:28

alfaromeo wrote on 09/24/08 at 10:40:53:

there is still problems
How to set maximum periods per day for teachers ?
there should be no more than 5 periods in a REAL day
Now, if we set "maximum periods per day for teachersé" ---> 4
we will get 4 periods on FET_day 1
then
3 periods on FET_day 2 ( there is only 3 timeslots at afternoon)
So there will be 7 hours per day for a teacher !!

I have thought about this problem. It might be possible, but it is a bit more complicated. I shall try, if my time permits.

Please attach here a complete test file for me, in the eventuality that I will implement this request. The best would be to send me his complete file, with constraints teachers max hours daily 5.

Back to top

IP Logged

Liviu Lalescu YaBB Administrator Offline FET author and forum admin Posts: 1569 Craiova, Romania Gender:	Re: Custom FET for aissa (Algerian schools) Reply #4 - 08/09/09 at 10:58:29 I have updated this custom version for FET 5.10.2. Please see initial post for modified links. I did this change because I saw very much activity on the forum concerning these custom versions (I translated with Google translator
Back to top	IP Logged

Liviu Lalescu YaBB Administrator Offline FET author and forum admin Posts: 1569 Craiova, Romania Gender:	Re: Custom FET for aissa (Algerian schools) Reply #5 - 08/12/09 at 09:44:30 12 August 2009: I updated to latest 5.10.2, and did some slight modifications (just to add the files which were modified, for somebody else to be able to modify as needed in the future). The files are now named 5_10_2-aissa2.
Back to top	IP Logged

Liviu Lalescu YaBB Administrator Offline FET author and forum admin Posts: 1569 Craiova, Romania Gender:	Re: Custom FET for Algerian schools (for user aissa) Reply #6 - 08/26/09 at 10:43:46 26 August 2009: renamed to fet-5_10_2-algeria (instead of aissa). Added a sample file.
Back to top	IP Logged

Liviu Lalescu YaBB Administrator Offline FET author and forum admin Posts: 1569 Craiova, Romania Gender:	Re: Custom FET for Algerian schools (for user aissa) Reply #7 - 08/30/09 at 13:13:54 30 August 2009: I updated (see initial post - modified). The constraints max days per week (for teachers) and max hours daily (for teachers and students) keep track of real days.
Back to top	IP Logged

Liviu Lalescu YaBB Administrator Offline FET author and forum admin Posts: 1569 Craiova, Romania Gender:	Re: Custom FET for Algerian schools (for user aissa) Reply #8 - 08/31/09 at 10:14:55 31 August 2009: I made another release with this update: the add activity dialog will warn if you want to add an activity split into more than FET ndays/2 (real days).
Back to top	IP Logged

	Welcome, Guest. Please Login or Register