In the embodiment shown in identifier images 412, as selected in the embodiment shown in FIG. 21, the user is given user group information 437 within the identifier image. The user group information 437 can indicate to which user group the identifier is assigned in the server's identification table. In the display of user group information 437, it is possible to provide information to the user indicating the allocation of the identifier in the identifier table to a user group for which the current user is the administrator. Such a user group information 437 can be called “My Household” as depicted in the embodiment shown in FIG. 21. User group information 437 can contain the name of a user group for which the current user is not the administrator in the server's identification table: in the embodiment shown in FIG. 21, this is “Ulrike”.
The identifier images 412 in the embodiment of FIG. 21 can also contain a change symbol 438.
FIG. 22 shows a further possible representation of an identifier image 412. In the embodiment shown in FIG. 22, the identifier image 412 has no user group information 437, but does show the change symbol 438. Furthermore, an assignment button 439 is provided in the embodiment of the identifier image 412 according to FIG. 22. By pressing the assignment button 439, the user can trigger a UI lock routine or a UI unlock routine.
