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Specifying subsets |
  
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Specifying subsets |
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The selection of courses that are to be scheduled simultaneously in partial optimisation is extremely important for the subsequent optimisation run. This is where you must use your experience and knowledge of your school to good effect in order to achieve a good result.
Course list
The course list displays all the courses of the currently active class level (year) that can be selected for partial optimisation. These are all the courses that still have open periods, i.e. periods that have not yet been scheduled in a cluster.
The "Per" column indicates the periods/week of the course and, in parentheses, the periods/week that have not yet been scheduled. The "Stud." indicates how many students have already been assigned to the course. The 'Level' column contains the class levels (years) for which each course id offered.
You can select courses for partial optimisation by checking the box in 'Sel.' column.
Note: No restriction
There is currently not restriction on the number of courses in partial optimisation. However, if a subset is selected that is too large, optimisation can take a very long time. You must also take care that your optimisation parameters do not contradict each other when selecting courses.
If, for example, a student has four course choices in a subset, but you wish to form a maximum of three clusters, it will as a matter of principle not be possible to achieve a result. In this case the error message 'Student has too many courses in subset' will be displayed.
Partial optimisation must of course always include all the courses that can be chosen as alternatives in a course choice. If e.g. student Oban can choose either course ar1 or ar2 , both courses must be included in the subset for partial optimisation.
Include clusters
Existing clusters are usually ignored in partial optimisation. However, it is possible to include existing clusters as the starting point for creating new clusters.
Clicking the button <Include clusters> displays a dialogue with list of available clusters. Here you can select the desired clusters and then include them in partial optimisation by clicking on <OK>.