1. A method comprising: testing at least one input/output interface of a computer module of IMA type comprising a plurality of input/output interfaces, in a device comprising a plurality of computer modules of IMA type, of at least one system comprising at least one application employed by a set of computer modules of the plurality of computer modules, the set of computer modules comprising the computer module having the at least one input/output interface, referred to as a first computer module, and at least one other computer module, referred to as at least one second computer module, at least one system test being associated with the at least one system for functionally testing the set of computer modules according to the at least one system, the at least one system test comprising at least one elementary system test for functionally testing the at least one input/output interface of the first computer module, said testing including: executing, using a processor, the at least one elementary system test to functionally test the at least one input/output interface of the first computer module, said executing the at least one elementary system test being performed without functionally testing the at least one second computer module, and transmitting, using the processor, at least one result of execution of the at least one elementary system test to a maintenance computer distinct from the computer modules of the plurality of computer modules.