Production design

Production design is the engineering stage that translates the detailed design into shop-floor work information: block division, plate nesting, parts lists, marking and cutting files, jig drawings, welding and assembly sequences, and the pre-outfitting packages for each block. It decides how the ship is actually built, where the blocks split, what order they are welded, and which work moves upstream off the berth, so it directly sets labor hours and dock time. It follows detailed design (which fixes the structure and systems against class rules) and feeds the production lines and the block erection schedule. A good production design is what makes block construction and pre-outfitting pay off.