Description:
The DAO (Data Access Object) Factory design pattern is used to abstract and encapsulate all access to the data source, providing a clean separation between the business logic and the data access logic. This pattern enables the application to switch between different data sources and provides a mechanism to manage the data access objects efficiently.

Main elements of the pattern:

• DAO Interface: Defines the standard operations to be performed on a model object(s).
• Concrete DAO Class: Implements the DAO interface and handles the CRUD operations with the data source.
• DAO Factory Interface: Provides a way to get the appropriate DAO based on the data source.
• Concrete DAO Factory Class: Implements the DAO Factory interface and returns instances of the specific DAO.

References:

1. DAO Factory Design Pattern - Oracle
2. Java Design Patterns - DAO

Acceptance Criteria:

1. Implement the DAO interface and at least one concrete DAO class for a model object.
2. Create a DAO Factory interface and a concrete implementation of the DAO Factory that returns instances of the concrete DAO.
3. Ensure that the implementation is well-documented and includes unit tests for the DAO methods and factory.