Disclosed is a computer-implemented method for estimating at least one requirement for migrating a computer-based application from a source platform to a target platform. The MR ratio of the magneto-resistance element in the series circuit is set to 12 the MR ratio of the magneto-resistance element in a memory cell. A temperature sensitive element proximate and in thermal contact with the electrically conductive element includes material capable of changing color when heated to a predetermined transition temperature to form a mark on the temperature sensitive element. The coloring-substance-distributor is activated via sliding the first cutting blade and the second cutting blade against each other and creating a wicking capillary movement of the coloring substance onto the craft item. The signal processing circuit controls a airwater feed control valve 40 and a suction force control valve 50, so as to control airwater feed flow and suction flow, a flow display being made by an indicator on the screen of a TV monitor.