Hi again !
I am using StarUML. IS an Open Source tool and free !
Some people are using
Rose... well, I think we have enough free tools to use.
StarUML can generate UML 2.0 symbols, like frames, iterations etc.
You are not required to produce a very detailed diagram, but a high-level architectural diagram, so, any tool can fit.
Cleuton (Brazil).
Cleuton Sampaio<br />Systems Architect<br />(SCEA,SCWCD,SCBCD,MCSE,MCSD)