design-patterns-cpp/facade/README.md

Façade

Provide a unified interface to a set of interfaces in a subsystem. Facade defines a higher-level interface that makes the subsystem easier to use.

When to use

• you want to provide a simple interface to a complex subsystem
• there are many dependencies between clients and the implementation classes of an abstraction
• you want to layer your subsystems, use a facade to define an entry point to each subsystem level