Method carried out by a device for representing quality information of a web-shaped object moving during manufacture, - wherein the quality information comprises a description of the quality of a position on the object, and - wherein the device comprises a display which permits a relative movement between object and display, the display being designed as a display held or carried by the user or as a display which is fixed relative to the moving object, and - wherein the quality information is displayed to a user on the display, characterized in that - the user can see the real object together with the quality information which is assigned to the real object to be seen or to the at least partial area to be seen without changing the viewing direction, and - depending on what the user actually sees, an associated quality information is displayed by a control device of the device, wherein the associated quality information is displayed directly on the object by means of the display, wherein the position of the object in space relative to the display is detected and is used for an assignment of the quality information, and wherein the position of the quality information is continuously corrected by synchronization, and - wherein an input of the user is detected by a sensor system of the device, the input being assigned as quality information to the real viewed partial area of the object, wherein a new quality information is added to the object by means of the input, and - wherein the device has a memory device for a location-dependent assignment of quality information to the object, and wherein the new quality information is an additional quality information which was not displayed to the user. - wherein the quality information comprises a description of the quality of a position on the object, and - wherein the device comprises a display which permits a relative movement between object and display, the display being designed as a display held or carried by the user or as a display which is fixed relative to the moving object, and - wherein the quality information is displayed to a user on the display, characterized in that - the user can see the real object together with the quality information which is assigned to the real object to be seen or to the at least partial area to be seen without changing the viewing direction, and - depending on what the user actually sees, an associated quality information is displayed by a control device of the device, wherein the associated quality information is displayed directly on the object by means of the display, wherein the position of the object in space relative to the display is detected and is used for an assignment of the quality information, and wherein the position of the quality information is continuously corrected by synchronization, and - wherein an input of the user is detected by a sensor system of the device, the input being assigned as quality information to the real viewed partial area of the object, wherein a new quality information is added to the object by means of the input, and - wherein the device has a memory device for a location-dependent assignment of quality information to the object, and wherein the new quality information is an additional quality information which was not displayed to the user.