The document discusses the "Tao of Design for Manufacturability" (DFM) methodology for upgrading product designs. It lists 10 "commandments" or criteria of Tao of DFM that include designing for best cost, quality, reliability, compliance, safety, time-to-market, function/style, and customer satisfaction. It also outlines 8 systems for best procurement, manufacture, assembly, testing, packing/shipping, supply/delivery, service/maintenance, and repair. The methodology can be applied to seamlessly upgrade designs and integrate manufacturability elements, resulting in re-engineered designs that comply with DFM.