We need to be able to mashup data online with enterprise data in a SSAS cube. To do this, we'll need the data modelling feature accessible when connecting to SSAS Tabular.
It seems like this shouldn't be a problem. You CAN add data from SSAS to a report with SQL Data, but you can't start from a SSAS model and add data from SQL sources. For me, this would be the more sensible approach. I have most of the data I need in my SSAS model, I just have some other bits out there I want to combine sometimes.
