You will see the technique to destroy the solution to the interface and then determine the appropriate implementation of those interfaces to create both a strong structured, the work program. See how to create better interfaces using agile development techniques, and learn the subtle differences between implementing an interface and inheriting an implementation. Learn about the patterns of the most useful, including Proxy, Facade, Adapter, and Factory, as well as categories of interfaces including service providers, information holders, and the external world interfaces. If you want to be a more effective programmer and create better software, you need Interface Oriented Design.