A realization that this leaves out something essential Nothing so fundamental lies in the realm of concern to us aggregate humans, where the need is, now, for the study of real complexity, not idealized simplicity. In every field except high-energy physics on one hand, and cosmology on the other, one hears the same. The immense understanding that has come from digging deeper to atomic explanations has been followed by a realization that this leaves out something essential. In its rapid advance, science has had to ignore the fact that a whole is more than the sum of its parts. Matter versus Materials: A Historical View knowledgecomplexityholism
The group of blind mullahs In a natural landscape, each element is part of the greater whole, a sophisticated and intricate web of connections and energy flows. If we attempt to create landscapes using a strictly objective viewpoint, we will produce awkward and dysfunctional designs because all living systems are more than just a sum of their parts. Our culture has tried to define the landscape scientifically, by collecting extensive data about its parts. These methods are much like the group of blind mullahs in the Sufi tale, who try to describe an elephant. Bill Mollison, Introduction to Permaculture The blind men who felt the elephantThe blind men and the elephant holismnature
Designer + Developer Workflow An Article by Dan Mall danmall.me The way designers and developers work together today is broken. It’s too siloed and separate; “collaboration” is a fantasy that few enjoy. The state of advertising in the 1940s was similar. All of that changed when copywriter Bill Bernbach met art director Paul Rand. Their collaborative working style led to the birth of the idea of “the creative team,” the mutual respect and partnership between art director and copywriter that tended to yield unique results. Bob Gage, an art director that worked for DDB, the agency Bernbach co-founded, described it like this: “Two people who respect each other sit in the same room for a length of time and arrive at a state of free association, where the mention of one idea will lead to another idea, then to another. The art director might suggest a headline, the writer a visual. The entire ad is conceived as a whole, in a kind of ping pong between disciplines.” Isn’t that what we all strive for in our jobs? True collaboration with equals and partners? Ideas that build off one another? Why does this seem so far away for some of us? collaborationmakingholismadvertisingcreativity
The blind men and the elephant A Proverb "I see" said the first, grasping a leg, "an elephant is like a tree." "I see" said the second, holding the tail, "an elephant is like a snake." Another, feeling the ear, said "an elephant is surely much like a thick carpet." The blind men who felt the elephantThe group of blind mullahs holism
What's Wrong With This Model? A Chapter from The Design of Design by Frederick P. Brooks, Jr. What's wrong with the rational modelDeciding what to designEvaluating goodnessChanging constraintsThey just don't work that way+1 More
What's wrong with the rational model We Don’t Really Know the Goal When We Start We Usually Don’t Know the Decision Tree – We Discover It as We Go The Nodes Are Really Not Design Decisions, but Tentative Complete Designs The Goodness Function Cannot be Evaluated Incrementally The Desiderata and Their Weightings Keep Changing The Constraints Keep Changing Changing constraintsDeciding what to designThe situation talks back
Deciding what to design We Don’t Really Know the Goal When We Start The most serious model shortcoming is that the designer often has a vague, incompletely specified goal, or primary objective. In such cases, the hardest part of design is deciding what to design. I came to realize that the most useful service I was performing for my client was helping him decide what he really wanted. Today, we recognize that rapid prototyping is an essential tool for formulating precise requirements. Not only is the design process iterative; the design-goal-setting process is itself iterative. Knowing complete product requirements up front is a quite rare exception, not the norm. Therefore, goal iteration must be considered an inherent part of the design process. What's wrong with the rational model iteration
Evaluating goodness The Goodness Function Cannot be Evaluated Incrementally The Rational Model assumes that design involves a search of the decision tree, and that at every node, one can evaluate the goodness function of several downward branches. In fact, one cannot in general do this without exploring all the downward branches to all their leaves, which is possible in principle, but leads to a combinatorial explosion of alternatives in practice. What's wrong with the rational model
Changing constraints The Constraints Keep Changing The explicit listing of known constraints in the design program helps here. The designer can periodically scan the list, asking, “Can this constraint now be removed because the world has changed? Can it be entirely circumvented by working outside the design space?” What's wrong with the rational model constraints
They just don't work that way Perhaps the most devastating critique of the Rational Model, although perhaps the hardest to prove, is that most experienced designers just don’t work that way. “Conventional wisdom about problem-solving seems often to be contradicted by the behavior of expert designers. Empirical studies of design activity have frequently found ‘intuitive’ features of design ability to be the most effective and relevant to the intrinsic nature of design. Some aspects of design theory, however, have tried to develop counter-intuitive models and prescriptions for design behavior.” — Nigel Cross
We must outgrow it Why all this fuss about the process model? Does the model we and others use to think about our design process really affect our designing itself? I believe it does. I believe our inadequate model and following it slavishly lead to fat, cumbersome, over-features products and also to schedule, budget, and performance disasters. The Rational Model, in any of its forms, leads us to demand up-front statements of design requirements. It leads us to believe that such can be formulated. It leads us to make contracts with one another on the basis of enshrined ignorance. A more realistic process model would make design work more efficient, obviating many arguments with clients and much rework. The Waterfall Model is wrong and harmful; we must outgrow it.