MoI for Architecture ( Revit )

 From:  Anis
3163.7 In reply to 3163.6 
Hi Michael,

Thanks for the links.
Is there any specific shape or model that Revit can not achieve, and MoI can do it ?
Is Revit base on polygon or NURBS ?

I want to know key point why we have to use MoI first then import to Revit ?