Entities serve as roles in relationships. For example, in the relationship employees work for employees:
You specify roles in the <Role> role dialog box, which is available from the Relationship dialog box. In this dialog box, you add an entity if needed, select it, and then edit it to further specify its role in the relationship.
Advanced Entity Properties Dialog Box
Creating an English Query Model
Defining Entities in an English Query Model
Expanding an English Query Model
Name Synonyms Tab (Advanced Entity Properties Dialog Box)
Semantic Properties Tab (Advanced Entity Properties Dialog Box)