The rubrics service should have support for grading work that is group based.
Unlike a traditional individual student centric task like a student completing an assignment there are works (i.e. submissions) that are group based and rubrics should be improved so that it can work with submissions that are made by groups and users alike.
A Rubrics evaluation stores
- the id of the item being graded as the evaluatedItemId
- the id of the user being evaluated as the evaluatedItemOwnerId
- the id of the evaluator as the evaluatorId