DataCAD'a main window displaying the main menu and several toolbars that will allows you to easily create drawings 

The Insert menu where you can choose to insert into your drawings symbols, text, stamp, objects, sketchup and excel 

The Create menu allows the user to create lines, walls, windows, doors, 3D curves, surfaces and solids, polyline and ellipses 

The Tools menu where you can manage the layer and adjust its settings 

DataCAD Settings window where you can configure and adjust the options for Windows