The notion of a thermal optimum persists There is an underlying assumption that the best thermal environment never needs to be noticed, and that once an objectively "comfortable" thermal environment has been provided, all of our thermal needs will have been met. The use of all of our extremely sophisticated environmental control systems is directed to this one end—to produce standard comfort zone conditions. Lisa Heschong, Thermal Delight in Architecture heatcomfortenvironmentux
Interlocking "The art world is highly invested in the idea that you can take an object and set it in a room, and the internal relationships will be so strong and so meaningful that all the kinds of change that take place on the object as a result of its being in a new environment will not critically affect our perception of the object. If that is the given assumption, then the object can be moved from one environment to another without its being critically altered, which then gives rise to the illusion that it can be moved from culture to culture, that it has the ability to transcend its cultural specificity, which in turn gives rise to the ultimate illusion that the object can transcend time. Because what is being claimed is that there exist certain objects isolated and meaningful enough to be transcendent, that they have the power to go on and on, that they are, as it were, timeless. "Well, one of the things that I was becoming involved in at that point in playing artist was the growing suspicion that this breaking down of the edge, the idea of the painting's moving into its environment, was putting the whole heightened rationale of the art object into doubt. There is simply no real separation line, only an intellectual one, between the object and its time environment. They are completely interlocking: nothing can exist in the world independent of all the other things in the world." Lawrence Wechler & Robert Irwin, Seeing Is Forgetting the Name of the Thing One Sees Deep Interlock contextchangeenvironmentobjects
Little sense of season The real world of technology denies the existence and the reality of nature. For instance, there is little sense of season as one walks through a North American or western European supermarket. Just as there is a little sense of season, there is little sense of climate. Everything possible is done to equalize the ambiance – to construct and environment that is warm in the winter, cool in the summer. Ursula M. Franklin, The Real World of Technology naturecyclesenvironment
The receiving end At times it helps to rephrase an observation in line with a perspective from the receiving end of technology. When my colleagues in the field of cold-water engineering speak of "ice-infested waters", I am tempted to think of "rig-infested oceans". Language is a fine barometer of values and priorities. As such it deserves careful attention. Ursula M. Franklin, The Real World of Technology valuesenvironmentlanguage
Walden A Book by Henry David Thoreau The quality of the dayI went to the woodsI love to be aloneQuiet desperationA new wearer of clothes+2 More Upstream ColorThoreau 2.0Upstream Color Original Soundtrack naturesolitudeenvironmentlabor
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.