11. The non-transitory computer-readable medium encoded with instructions according to claim 1 , said instructions, when executed by the computer, cause the computer to generate said computer code from said description made in a language organized in object classes, in which said language enables to define first classes giving access to technical or functional services to be provided by a hardware and software computer platform receiving the computer application, said services being not definable by said language, and the other classes of said language cannot have access to any one of said services except through said first classes.
12. The non-transitory computer-readable medium encoded with instructions according to the claim 11 , said instructions, when executed by the computer, cause the computer to distribute said description between the code generators according to distribution rules associating at least some of said first classes or of said other classes of said language with at least one of said code generators.