The system boundary box must be the first element placed
in a use-case diagram. It distinguishes the border between use cases
and actors (use cases are inside the borders of the system boundary
box and actors are outside of it).
Procedure
- Click the Boundary box button
.
- Click once in the drawing area. IBM® Rational® Rhapsody® creates
a boundary box named System Boundary Box. Alternatively, click-and-drag
with the mouse to draw the system boundary box.
- If wanted, edit the default name and press Enter.