The Interface Definition Language (IDL) was developed by the Object Management Group (OMG) to specify the Common Object Request Broker Architecture (CORBA) because CORBA is programming language
independent. IDL is used as a programming language for describing interfaces that enable communication between modules implemented in different languages. Since the communication of the individual modules cannot take place directly, because the clients and the modules have their own address spaces, they communicate via proxies and so-called stubs
. Thedescription of the component interfaces is done with the IDL language.
IDL stubs and IDL skeletons are part of CORBA.