Kieran and Timberlake prefer the term off-site fabrication to prefabrication, and their building method resembles the 2-by-4 frame of a traditional stick-built house, in the sense that standardized factory-made bits and pieces are assembled on the building site. The big difference is that the off-the-shelf aluminum frame is bolted together and filled in with a variety of screw-on and snap-in components: polypropylene sheet walls, glazing, exterior skin, and a thin-film wrapper with embedded photovoltaic cells (hence the overly cute name, Cellophane House). The house is a combination of three-dimensional modules, panels, and frames. The design, fabrication, and construction are seamlessly integrated, and the various pieces are automatically ordered from the fabricator to suit the design as it is entered into the architect's computer. If there is a Next Big Idea in prefabrication, this may be it.