Link Dataset and DataGroup workflow

Related Issues	Document Status
#17	In Progress
#21	In Progress

An owner of a dataset or and owner of a datagroup can request to link the two objects. He or she can then assign roles for this relation as described in Datasets and data groups.

The figure Sequence Diagram to link a Dataset to a DataGroup illustrates this workflow for the case that the dataset creator links the dataset to another datagroup.

Once such a link is requested, a DatasetDataGroupRelation object is created and the owners of the DataGroup are asked to approve the relation. If they approve, the corresponding permissions on the Dataset are granted to the DataGroupUserGroup of the DataGroup. If the DataGroup owner rejects, the DatasetDataGroupRelation is deleted.

As all owners of parent DataGroups are contained in the DataGroupUserGroup (see link-datagroups), they also get the relevant permissions.

Sequence Diagram to link a Dataset to a DataGroup