A feature of the Delphi IDE that I learned about only recently is interface completion. Let's say you have got an interface declared like this: type IMyInterface = interface procedure MethodA; procedure MethodB; // lots of more methods procedure MethodZ; end; Now you want to write a class that implements this interface: type TMyClass = class(TInterfacedObject, IMyInterface) private // implementation of IMyInterface // here go all methods that implement IMyInterface end; To see this and other cool stuff in action, see Steve's demo