41.3% of design items clear the safety threshold, yet complex engineering projects remain bogged down by tightly coupled constraints. Authors | Zheng Jiamei Cen Feng Editor | Cen Feng In engineering, 91% correctness can sometimes be indistinguishable from zero ability to deliver.A cable tray crossing fire-protection piping at the top of a server room can render dozens of pages of correct calculations worthless as a deliverable. The current-carrying capacit