Other UML Modeling tools on the web:
Argouml is a substantial UML
modeling tool written in Java that is supposed to make software modeling
enjoyable, if it isn't already. Many of the ideas used in Argouml have found
their way into Dachshund.
kUML is a UML modeling tool for the
KDE desktop. It is still under development, and not yet usable, but the
developers claim that is "about to be the best UML modeling tool
available on the net". We'll just have to see about that :^)
Rational Rose is the most well known UML
modeling tool, and therefore it gets the obligatory mention.