---

Defining the Model

The work of writing enterprise objects typically begins in EOModeler. An individual enterprise object class maps to an entity in the data model. It then follows that an entity’s characteristics map to an enterprise object’s characteristics and behavior. You make the following decisions for a particular enterprise object in EOModeler:

• Should an enterprise object map to EOGenericRecord or a custom class? (“Which Enterprise Object Class?”)

• What entity attributes should be class properties? (“Choosing Class Properties”)

• What relationships does an enterprise object have with other enterprise objects? (“Relationships With Other Enterprise Objects”)

• What referential integrity rules should the relationships in an enterprise object have? (“Referential Integrity”)

---