Right-click on the project and choose the
Add->New Item context menu item. Scroll down in the dialog, select the "DLINQ Object" icon and give it an appropriate
name (in this sample I am naming it "Northwind"
since I am going to be modeling the Northwind database).
Figure 2
This will add a Northwind.dlinq file to your project and
bring up its designer.
Figure 3
You can now use the designer to map your data
models and entities graphically, as well as setup associations to map
relationships between them.