If one changes the code (even outside of Together), then the class diagram is updated automatically. Together does support the other 8 UML diagrams, and where possible tries to keep these in sync. If ...

In our third installment on UML we'll show you how to use sequence diagrams as a tool in your application development and an understanding of object interaction.

Changes made for architecture in UML 2.0 primarily involve the structural (class) model, while changes for scalability are best seen in the improved sequence diagrams.

These interactions, however, can be quite complex. Also, one could use UML collaboration diagrams to describe these interactions. (UML allows us to use either sequence or collaboration diagrams to ...