Abstract: A method and a system for issuing information over a communications network, in particular over the Internet, wherein a central computer communicates with at least one user computer of a user for data exchange, wherein at least one file page of the central computer is opened after the communications connection is established, such that a query can be posted via the user computer to the central computer for information to be obtained from the user, wherein the query submitted via the user computer is displayed on a page of the central computer and can be read and answered by other users of other user computers that are also connected to the central computer.

Abstract: The invention pertains to a diagnostic device for a fluidic device (11, 12, 23), in particular for a valve array and or a maintenance unit. Furthermore, the invention pertains to a fluidic device (11, 12, 23) equipped with said diagnostic device. The diagnostic device preferably can be locally attached to the fluidic device (11, 12, 23). It features a diagnostic module (34) to determine at least one wear parameter (38b-40b,44) causing wear on the fluidic device (11,12,23) and for reporting of at least one wear status ascertained on the basis of the at least one wear parameter (38b-40b,44).

Abstract: A method and a system for issuing information over a communications network, in particular over the Internet, wherein a central computer communicates with at least one user computer of a user for data exchange, wherein at least one file page of the central computer is opened after the communications connection is established, such that a query can be posted via the user computer to the central computer for information to be obtained from the user, wherein the query submitted via the user computer is displayed on a page of the central computer and can be read and answered by other users of other user computers that are also connected to the central computer.