In the twenty-first century, the question most of us ask when disaster strikes is not "How could God let that happen?" but "Who screwed up?" This is a salutary development: We take responsibility for the world we live in. Whether or not our world is the best of all possible worlds, it is a world we have made for ourselves. We live in an engineered landscape, on an engineered planet. Our cities and farms, our dwellings and vehicles, our power plans and communication networks—these are all creations of human artifice. If we don't like it here, we have only ourselves to blame.
Engineers seem to have a clear, if usually implicit, model of the process of design. It is usually an orderly model of an orderly process as the engineer conceives it.
The notion that the design process should be modeled as a systematic step-by-step process seems to have first developed in the German mechanical engineering community.
Herbert Simon independently argues for design as a search process in The Sciences of the Artificial. He was motivated to lay out a strictly rational model of design precisely because such a model was a necessary precursor to automating design. His model remains influential even if today we recognize the "wicked problem" of original design as one of the least promising candidates for AI.
In software engineering, Winston Royce independently introduced a seven-step Waterfall Model to bring order to the process. In fact, Royce introduced his waterfall as a straw man that he then argued against, but many people have cited and followed the straw man rather than his more sophisticated models. Even if ironically, Royce's seven-step model must be considered one of the foundational statements of the Rational Model of Design.