In order to rapidly load from a server (1) an application to be deployed (AP) in a terminal (2) and a chip card (3), a message (MAP) containing both a first application part and second application part formatted so as to be compatible with a protocol for communication between the terminal and the card is transmitted by the server to the terminal, which stores the two parts. The first part (APT) extracted from the application message (MAP) is installed in the terminal. A specific loader (CAPC) loads the second part (APC) extracted from the message according to the communication protocol. The installations of the two application parts are thus synchronous under the control of the terminal.