Intent It is used to model, represent, and manage a set of persistent objects that are interrelated, rather than representing them as individual fine-grained entities.
Explanation Real world example
For a console, there may be many interfaces that need to be managed and controlled. Using the composite entity pattern, dependent objects such as messages and signals can be combined together and controlled using a single object.
In plain words
Composite entity pattern allows a set of related objects to be represented and managed by a unified object.