Abstract: A barefoot shoe with bottom and upper, and with fasteners for fastening the barefoot shoe on the foot of a person wearing the barefoot shoe, has a bottom consisting entirely or at least almost exclusively of ring structures. Preferably, the upper also consists entirely of ring structures, or the upper has areas consisting at least almost exclusively of ring structures. A barefoot shoe is thus created by which the feet of a person wearing the barefoot shoe are, in quick succession, kept wet, dry, cold, warm, etc., without there being any danger of injury and without there being any danger of annoying foreign bodies entering the shoe. The barefoot shoe also has good static friction properties, even on irregular ground surfaces. The barefoot shoe can be quickly cleaned and has sufficient hygiene properties. The barefoot shoe is also light and flexible and can be given an attractive appearance.

Abstract: Control method for production processes with colour-relevant products, wherein a production line with those stations in the production process, whose provision processes and/or processing processes influence the product outcome is defined, at least one master data record for each station in the production line is predetermined, and current data of a station with the associated at least one master data record are compared.