AutoCAD Architecture AutoCAD Architecture is the product of Autodesk, It is extension of AutoCAD, with additional tools exclusively for the the field of AEC. Created objects can be represented in 2D and 3D as well. Additionally, if the customized door or the window is made and if the same is duplicated 50 times, following that need to update the style rises, you can change it once which updates all the duplicates automatically, Perfect time saving tool.