By contrast, what we call “set-based concurrent engineering” (SBCE) begins by broadly considering sets of possible solutions and gradually narrowing the set of possibilities to converge on a final solution. A wide net from the start, and gradual elimination of weaker solutions, makes finding the best or better solutions more likely. As a result, Toyota may take more time early on to define the solutions, but can then move more quickly toward convergence and, ultimately, production than its point-based counterparts.