Naming and Defining Entities and Attributes › Entity Definitions › Definition References and Circularity

Definition References and Circularity

An individual definition can look good, but when viewed together they can be circular. Without some care, this can happen with entity and attribute definitions.

Example:

• CUSTOMER: Someone who buys one or more of our PRODUCTs
• PRODUCT: Something we offer for sale to CUSTOMERs

It is important when you define entities and attributes in your data model that you avoid these circular references.