2. Domain Model

Domain Model

An object model of the domain that insigates both behavior and data.

For a full description see P of EAA page116

At its worst business logic can be very complex. Rules and
Logic describe between different cases and slants of behavior, and it's
This complexity that objects were designed to work with. A Domain
Model creates a web of interconnected objects, where each object
Represents some meaningful individual, whether as large as
Corporation or as small as a single line on an order form.

Domain Model

Domain object model that combines behavior and Data

In the worst case, the business logic may be very complicated. Rules and logic describe many different conditions and changes in behavior, and objects are designed to solve these complexities. The domain model creates a network composed of interactive objects, where each object plays a meaningful individual. These objects can be a large company, or a small row in the order.