1. A non-transitory computer-readable medium encoded with instructions for generation of a computer code of at least one part of a computer application, said instructions, when executed by a computer, cause the computer to: generate said computer code from a description of said at least one part of the computer application by distributing said description between several code generators according to modifiable distribution rules, each code generator translating the part of said description that it is provided with, in order to provide at least one part of the said computer code in a respective language; and split up said description in object classes and distribute said object classes between the code generators according to said distribution rules, each code generator translating the object classes with which it is provided, into said corresponding part of the said computer code.