This invention relates to an integrated circuit device comprising a memory and at least one application program residing within said memory. This invention is characterized in that the application program comprises at least one configurable variable and a list of at least one reference element, and in that said memory includes, on the one hand, at least one means for initializing said variables, wherein said means is configured with several parameters, one of which parameters is said reference element list, and on the other hand, a command for sending data that contain, in particular, values to be assigned to the configurable variables. This invention can be applied, in particular, to smart cards.