SmartDraw UML Center

HOW TO DRAW UML DIAGRAMS (cont'd)

Arranging Objects Vertically
You can think of the objects in your drawing as a vertical stack of blocks. Objects drawn earlier are on the bottom of the stack while objects drawn later are at the top of the stack. The object drawn last is the shape that's on top.

If a recently drawn object like a loop on a sequence diagram covers parts of your drawing, you can go to the Shape Styles group and select the transparent fill from the Fill command or you can go to the Design tab and choose Send to Back on the Shape Layout group to change the order of the stack.