Card device, comprising a non-volatile memory area, wherein the following are installed in the non-volatile memory area: - at least one applet instance (AIO A; AIO B) of at least one functional applet (A; B); - for each installed applet instance (AIO A; AIO B), an applet identifier AID (AID A; AID B) assigned to the applet instance (AIO A; AIO B); - an AID applet instance (AIO AID) of an AID applet, comprising an interface unit for communication with functional applets (A; B); - in each installed functional applet (A; B) which is intended to be able to communicate with the AID applet, an interface unit to the AID applet (AIO AID); - an AID applet identifier AID (AID X) assigned to the AID applet instance (AIO AID); and - a gamma, by means of which the following are assigned to one another: --- one or more combinations of the AID applet identifier AID (AID X) with one or more conditions (Bed1, Bed2) of commands (APDU) arriving at the card device; and --- for each combination: a designation of a functional applet (A; B) and/or of an installed applet instance (AIO A; AIO B) to which a command (APDU) of the arriving commands (APDU) is to be forwarded if this combination is present; --- characterized in that the card device is configured such that it allows an applet instance (AIO A; AIO B) of a functional applet (A; B) to be addressed with a command (APDU) in two different ways, namely either with the dedicated applet identifier AID (AID A; AID B) or with the AID applet identifier AID (AID X) plus the appropriate conditions (Bed 1, Bed 2). - at least one applet instance (AIO A; AIO B) of at least one functional applet (A; B); - for each installed applet instance (AIO A; AIO B), an applet identifier AID (AID A; AID B) assigned to the applet instance (AIO A; AIO B); - an AID applet instance (AIO AID) of an AID applet, comprising an interface unit for communication with functional applets (A; B); - in each installed functional applet (A; B) which is intended to be able to communicate with the AID applet, an interface unit to the AID applet (AIO AID); - an AID applet identifier AID (AID X) assigned to the AID applet instance (AIO AID); and - a gamma, by means of which the following are assigned to one another: --- one or more combinations of the AID applet identifier AID (AID X) with one or more conditions (Bed1, Bed2) of commands (APDU) arriving at the card device; and --- for each combination: a designation of a functional applet (A; B) and/or of an installed applet instance (AIO A; AIO B) to which a command (APDU) of the arriving commands (APDU) is to be forwarded if this combination is present; --- characterized in that the card device is configured such that it allows an applet instance (AIO A; AIO B) of a functional applet (A; B) to be addressed with a command (APDU) in two different ways, namely either with the dedicated applet identifier AID (AID A; AID B) or with the AID applet identifier AID (AID X) plus the appropriate conditions (Bed 1, Bed 2). --- one or more combinations of the AID applet identifier AID (AID X) with one or more conditions (Bed1, Bed2) of commands (APDU) arriving at the card device; and --- for each combination: a designation of a functional applet (A; B) and/or of an installed applet instance (AIO A; AIO B) to which a command (APDU) of the arriving commands (APDU) is to be forwarded if this combination is present; --- characterized in that the card device is configured such that it allows an applet instance (AIO A; AIO B) of a functional applet (A; B) to be addressed with a command (APDU) in two different ways, namely either with the dedicated applet identifier AID (AID A; AID B) or with the AID applet identifier AID (AID X) plus the appropriate conditions (Bed 1, Bed 2).