> I just wanted to ask what to start the prototype with SWT or Swing to
> make migration easier.
You are not sure what technology you want to use, but want to create a
prototype? Sound like a case for http://www.eclipse.org/pmf/ But it is
"not there yet" and I don't think that you want it, but still it is
"modelling" newsgroup ;)
You can try to install http://www.eclipse.org/vep/
(http://wiki.eclipse.org/VE/Update) it support SWT and Swing.
VE news group: eclipse.tools.ve
Most likely you will have some problems (installation or usage), so you
would like to check commercials tools (both support SWT and Swing, there
are some free non-commercial versions):
http://www.instantiations.com/windowbuilder/
or http://www.cloudgarden.com/jigloo/
Actually if you are not sure what to use, probably
http://www.netbeans.org/kb/docs/java/gui-db.html fit your needs best.
Regards,
Krzysztof Kowalczyk