Hi everybody!
I'm using the trial versin of Astah* trying to understand if this is the software I need.
I'd like to have the possibility to create child diagram inside a DFD. For example I create a DFD and then I create a ProcessBox and an ExternalEntity linked with a DataFlow arrow.
If I double-click on the ProcessBox I have the possiblity to create a related Data Flow Diagram. Ok so far.
I would like that, if I change something in the first diagram, I have the same thing changed in the second diagram (i.e. the name of the DataFlow arrow).

Hope I explained myself.

Thank you