Now, let's start our discussion by looking at the models that have one-to-many relationships. If we look at the Employer and Employee relation, we can see that the Entity Frameworks Entity Data Model generator was able to figure out the one-to-many relationship between the database tables and was able to create the same relationship in the conceptual Entity Data Model as well.
Also, the relationship in the Entity Data Model is represented by 1 with the entity at the one end of the relationship and by * with the entity on the many end of the relationship.
If we look at our Entity Data Model, we can see that the Entity Framework created Navigation Properties in the entities. The entity at the one end of the relationship will have a navigation property of the collection type to hold multiple entities on the many end. Similarly, the Entity on the many end of the relation will have a navigation property that will let...