Patent ID: 8656500

Claim:
A method for controlling user dialogs on a technical equipment (ATM) to be serviced for maintenance, the technical equipment (ATM) being a cash dispenser or a deposit return device, wherein a computing unit (COMP) evaluates data (D) about the condition of the technical equipment (ATM), the data (D) including data identified by sensors, and, depending on said evaluation, controls at least a visual output of textual and/or pictorial instructions (INSTR; CHK) for a user maintaining the technical equipment (ATM), characterized in that the method processes the data (D) using a cyclic directed graph (GRPH) that comprises nodes ( 1000 , . . . , 1300 . . . ) and edges (INSTR, CHK) connecting the nodes, wherein the nodes relate to different maintenance conditions of the equipment (ATM), and the edges relate to the instructions (INSTR; CHK) for the user to transfer the equipment (ATM) from one of the nodes to another node, wherein, using the data (D), an initial node (START) and at least one target node (Z 1 , Z 2 ) are identified that relate to an initial condition to be corrected and a desired target condition for the equipment (ATM), and wherein by means of a route plan method a sequence of edges is determined that corresponds in the graph to the shortest path from the initial node (START) to the particular target node (Z 1 ), wherein by means of the route plan method a different sequence of edges is determined than the one that corresponds to the shortest path from the initial node (START) to the particular target node (Z 1 ) if it is determined from the user data that the user has no authorization for the node and/or edges of the shortest path, and wherein, if the target node cannot be reached with the existing rights of access, a user dialog is displayed, the user dialog consisting of a single step in which the user is informed that he does not possess the necessary rights of access.