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 ...

To effectively use Unified Modeling Language when developing Java applications, developers must have a thorough understanding of the UML elements and how these elements map to Java.

UML is used as a representation of the Java programming language. Using sample class and sequence diagrams, you can see how UML conveys unambiguous code-mapping information to developers.