1. A system, comprising: a computer including a processor that executes a design tool for designing electronic circuits on a printed circuit board, wherein the tool is configured to assemble a plurality of verified self-contained, pre-designed domains in a printed circuit board, wherein each of the domains is a module chosen from a pre-composed architecture library, comprising self-contained pre-designed electronic modules represented by logical architecture and corresponding physical architecture; and the self-contained, pre-designed domains are embedded in a connector domain on the printed circuit board and comprise a support domain.