Question

An aggregation relationship in the domain model suggests the application of the

Question 10 options:

creator pattern


singleton pattern


controller pattern


expert pattern

Answer 1

An aggregation relationship in the domain model suggests the application of the:

creator pattern

The creator pattern, also known as the factory pattern, is a design pattern that focuses on creating objects. In the context of a domain model, an aggregation relationship implies that one class (the aggregate) contains or owns another class (the component). The creator pattern is often used to encapsulate the creation of these component objects within the aggregate class. This pattern helps to manage the lifecycle and creation of the aggregated objects, ensuring proper initialization and encapsulation.

Answer 2

An aggregation relationship in a domain model typically suggests the application of the "expert pattern."

The expert pattern, also known as the Information Expert pattern, is a design pattern in object-oriented software development. It suggests that the responsibility for a particular behavior or piece of information should be assigned to the class that has the most knowledge or expertise regarding that behavior or information.

In the context of aggregation relationships, the class that aggregates (contains) other objects is responsible for managing and controlling those aggregated objects.An aggregation relationship in a domain model typically suggests the application of the "expert pattern."