Façade Pattern
“Facade is a structural design pattern that provides a simplified interface to a library, a framework, or any other complex set of classes.”
“When you call a shop to place a phone order, an operator is your facade to all services and departments of the shop. The operator provides you with a simple voice interface to the ordering system, payment gateways, and various delivery services.”
For a clear view, click on the images (images are from Wikipedia)
