The menu item „Interdisciplinary subjects” is used to combine different competence grids into one subject.

Interdisciplinary subjects can be subjects/topics that overspan other subjects (e.g. social and personal competences) or subjects/topics that combine aspects from different subjects (and therefore digital competence grids) into one theme. An example of such a theme could be “fairy tales” which would have a historical background (history competence grid) as well as a language background (language competence grid) as well. 

Also, this concept can be used as evidence that a student has fulfilled different competences at once: if an associated task is solved properly and if competences are addressed from different competence grids the evidence has been made that different interdisciplinary themes have been understood and solved by a student.

This could be seen as the opposite direction of granular sub-competences.