Disclosed is a method, system, and program for providing a connection to a merchant server implementing a merchant electronic commerce web site at a customer computer. An intermediate storing section 20 is provided under the upper processing section 10 by evenly spacing out powder grain storing vessels 22 corresponding to the plurality of functional stations 13, on circumferential points. In a preferred embodiment, adjustments are made to a model of the physical system as a function the quality of identity in order to render the correct input more efficiently and accurately.