Data sources, datasets, security groups, and users
The associations between data sources, datasets, security groups, and users determines:
who can see what data
which dataset a piece of data belongs to
In this example:
Data source 1 belongs to dataset A
Data source 2 belongs to dataset B
There is no data source for dataset C
Data source 3 belongs to dataset D
Members of security group S can see the data from data source 1 only
Members of security group U can see the data from data source 3 only
No one can see data from data source 2 because dataset B doesn’t belong to any security groups
User 4 cannot see any data at all because security group T has no datasets
If you move data source 1 to dataset C:
User 1 can still see data from that source
User 2 cannot now see data from that source
User 5 can now see data from that source
So, moving a data source to a different dataset has implications on security.