Description of the illustration adfns109.eps

This graphic shows the MGD_ID base code object as the uppermost box, the RFID code categories beneath it (labeled as boxes EPC, NASA, and others), then beneath these code category boxes, the respective scheme boxes. So beneath the EPC category box are the scheme boxes labeled SGTIN-64, SGTIN-96, and GID-96 and beneath the NASA category box are the scheme boxes labeled NASA-T1 and NASA-T2. Each level of boxes in the hierarchy is connected with downward pointing arrows to indicate their relationship.