Promoting Excel Tabular Model to SSAS

PowerPivot for Excel is a fantastic addition to Microsoft's Business Intelligence offering. It provides a self-service capability for users to mash-up huge amounts of data from multiple sources, create advanced calculations that get refreshed alongside their pivot tables and the ability to very easily publish workbooks as web applications. Excel users are already comfortable with the interface. And the PowerPivot add-in is free for Excel 2010 and 2013 users.