Editing Mediator pattern (section)

===Solutions described by the mediator design pattern ===
* Define a separate (mediator) object that encapsulates the interaction between a set of objects.
* Objects delegate their interaction to a mediator object instead of interacting with each other directly.

The objects interact with each other indirectly through a mediator object that controls and coordinates the interaction.

This makes the objects ''loosely coupled''. They only refer to and know about their mediator object and have no explicit knowledge of each other.

See also the UML class and sequence diagram below.