The invention relates to a method for operating a carousel milking facility comprising a plurality of milking stations, which are arranged on a platform. The modeled net reflectance spectrum is calculated as a weighted incoherent sum of reflectances from n\u22671 different regions constituting the portion of the patterned substrate, wherein the reflectance of each of the n different regions is a weighted coherent sum of reflected fields from k\u22671 laterally-distinct areas constituting the region. Next, a data type identification is appended to each byte in the data stream, thereby creating a technology independent data stream having a particular bit rate. Various prenylation inhibitors having the necessary structural groups to bond covalently, or essentially irreversibly, to the prenylation enzyme include carbonyl or thiocarbonyl compounds and alpha oxo-epoxides bonded to a hydrophobic, substrate-mimicking group.