Opbygning Claims - Underclaims

4. A method according to claim 1, wherein the information on the service offer in step c) is retrieved from the user terminal by interactive searching in the data base in the central data processing device.
5. A method according to claim 1, wherein a dedicated terminal with keyboard and audiovisual output devices in the form of a display and a loudspeaker is used as a user terminal, the user terminal comprising an internal memory for storing a user programme which is used for specifying the service request.
6. A method according to claim 5, wherein information for specification of the service request and information on the service offer are displayed at least partially as codes, menus or as graphic information on the display in the dedicated user terminal.

4. A method according to claim 1, wherein the information on the service offer in step c) is retrieved from the user terminal by interactive searching in the data base in the central data processing device.