Implementations of the CORBA specification (i.e. a CORBA ORB) support SII in the following way. The ORB will provide an IDL compiler which is specific to that particular ORB product. When a developer compiles their IDL with the ORB vendor's IDL compiler, stubs and skeletons are created. These stubs and skeletons are static. This is because they do not change. If changes are made to the IDL, the stubs and skeletons must be regenerated by running the IDL compiler again. The IDL compiler generates a stub and skeleton based on the structure of the appropriate IDL interfaces. The stubs and skeletons are statically generated at IDL compilation time. These stubs are then either imported or included into the application which needs access to the CORBA Objects. The stubs and skeletons will have been generated to either directly or indirectly utilize IIOP to communicate. In many cases, the IDL compiler, will generate stubs to utilize Dynamic Invocation Interface to interact with the skeletons. The IDL compiler may also generate skeletons which utilize Dynamic Skeleton Interface to interact with the stubs.
