A reflexive association is a relationship between an entity and itself.
Click the Association Link tool in the Toolbox.
Click inside the entity symbol and, while continuing to hold down the mouse button, drag the cursor a short distance within the symbol, before releasing the button.
Drag the resulting association symbol away from entity to make clear its two links to the entity:
In the example above, the reflexive association Manager expresses that an employee (Manager) can manage other employees.
