I know some people are going to say: "Hey! That's Dan Flavin's act. Why in the hell is Irwin doing a Dan Flavin? Why is he suddenly so inconsistent – fluorescent one day and Cor-Ten the next?" The key to all of this is that we have to examples what we mean by consistency. And here the critical question is: "what do we use to measure consistency with?" If you measure consistency in terms of material, or gesture, then I will be found inconsistent. But, in all of the recent pieces and proposals, if you go to the actual site and look at it, you will find that the solution is absolutely consistent on the grounds within which it responds to its environment. This in turn is consistent with my development of the implications implicit in non-object art.
What of machines and prefabrication? How do they compare?
Well, the machine has its limits. We, using handcrafted methods, do things that machines cannot do. Of course, it's not fast like a machine. And in complicated areas like here, things wouldn't go the same using a machine as it would by hand.
We use numerous variations of all these connecting and splicing joints. Using a machine, [the wood joints] can all be made uniform, but really, we need to consider whether that's a good thing. It's better to make each mechanism and joint by considering what's suitable for each unique condition.
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.