It seems that the multiplicity of the UMI diagram for the UI has a mistake (MainWindow - > 0..1AppointmentWindows), as it seems that in the implementation, a more accurate representation would be (MainWindow -> 1 AppointmentWindows) since the AppointmentWindows is not optional.
It seems that the multiplicity of the UMI diagram for the UI has a mistake (
MainWindow
- > 0..1AppointmentWindows
), as it seems that in the implementation, a more accurate representation would be (MainWindow
-> 1AppointmentWindows
) since theAppointmentWindows
is not optional.