This tutorial shows how to create associate diagrams and define the relationship between two elements, which are defined in two different diagrams.
1
Create Package Diagram with two packages named PackageA and PackageB.
2
Associate new diagram to PackageA – click on Add New Diagram in context menu of package (context menu available on right click).
3
Select Class Diagram, type its name and confirm it clicking on OK button.
4
Draw a class diagram.
5
Repeat steps 2 to 4 for PackageB.
6
In Project tab of Side bar, choose All Entities view.
7
Open the package diagram with PackageA and PackageB . Drag ClassA from project tree and drop it to PackageA and ClassB to PackageB.
8
Insert relationship between two classes. For example choose Use relationship and drag from ClassA to ClassB.

Finished!