Forms that evolve external to human beings seem to do so in terms of multi-dimensional processes of interaction. An individual organism's structure develops, with luck, from birth into adult forms which then die and decay. Each aspect of this process is interactive with the others, the genetics of the organism, the interaction and individual function of the component parts within the individual, and the interactions between the individual and the environment. The behavior of the individual within an environment is even to some extent dictated by it's internal maintenance needs.
Behaving within it's environment the individual organism (or inorganic object for that matter) becomes, from the perspective of another individual, a part of this second individual's environment. Nothing within an environment exists apart from that environment. Everything is simultaneously interacting with it's own version of the shared environment (from its own perspective) whether consciously or not.
As the individual interacts with and affects its environment (by its presence, even) so too the environment acts on the individual. To an equal extent, and often to a greater one, the development of form in nature, be it organic or otherwise, is directed by the environment the form in question is developing with. "With" because every environment is itself in a perpetual state of development, as are its components.
An individual's internal structural development can be seen to be effected over time by it's environment (early death by falling rocks). Taking an even wider view, of species evolution through natural selection, one can see how the environment can shape development. Slowly, nature responds to a need or a problem which another aspect of nature creates. The solutions produced to these problems take the form of experimental forms. Nature can be seen to operate, as such, through experimental processes, in response to a need.
It is interesting to compare this view of interaction and evolution in nature to this interview with Charles Eames regarding Design, in the normal human usage of the term. It is from the film 'Design Q&A':
Q.What is your definition of “design?”
A .A plan for arranging elements in such a way as to best accomplish a particular purpose.
Q.Is design an expression of art (an art form)?
A.The design is an expression of the purpose. It may (if it is good enough) later be judged as art.
QIs design a craft for industrial purposes?
A.No—but design may be a solution to some industrial problems.
Q.What are the boundaries of design?
A.What are the boundaries of problems?
Q.Is design a discipline that concerns itself with only one part of the environment?
Q.Is it a method of general expression?
A.No—it is a method of action.
Q.Is design a creation of an individual?
A.No—because to be realistic one must always admit the influence of those who have gone before
Q.. ...or a creation of a group?
Q.Is there a design ethic?
A.There are always design constraints and these usually include an ethic.
Q.Does design imply the idea of products that are necessarily useful?
A.Yes—even though the use might be very subtle.
Q.Is it able to cooperate in the creation of works reserved solely for pleasure?
A.Who would say that pleasure is not useful?
Q.Ought form to derive from the analysis of function?
A.The great risk here is that the analysis may not be complete.
Q.Can the computer substitute for the designer?
A.Probably, in some special cases, but usually the computer is an aid to the designer.
Q.Does design imply industrial manufacture?
A.Some designs do and some do not—depending on the nature of the design and the requirements.
Q.Is design an element of industrial policy?
A.Certainly; as is any other aspect of quality, obvious or subtle, of the product. It seems that anything can be an element in policy.
Q.Ought design to care about lowering costs?
A.A product often becomes more useful if the costs are lowered without harming the quality.
Q. Does the creation of design admit constraint?
A.Design depends largely on constraints.
A.The sum of all constraints. Here is one of the few effective keys to the design problem—the ability of the designer to recognize as many of the constraints as possible—his willingness and enthusiasm for working within these constraints—the constraints of price, of size, of strength, balance, of surface, of time, etc.; each problem has its own peculiar list.
Q.Does design obey laws?
A.Aren't constraints enough?
Q.Are there tendencies and schools in design?
A.Yes, but this is more a human frailty than an ideal.
Q.Ought the final product to bear the trademark of the designer? of the research office?
A.In some cases, one may seem appropriate. In some cases, the other, and certainly in some cases, both.
Q.What is the relation of design to the world of fashion (current trends)?
A.The objects of fashion have usually been designed with the particular constraints of fashion in mind.
Q.Is design ephemeral
A.Some needs are ephemeral. Most designs are ephemeral.
Q.Ought it to tend towards the ephemeral or towards permanence?
A.Those needs and designs that have a more universal quality will tend toward permanence.
Q.To whom does design address itself: to the greatest number (the masses)? to the specialists or the enlightened amateur? to a privileged social class?
A.To the need.
Q.Can public action aid the advancement of design?
A.The proper public action can advance almost anything.
Q.After having answered all these questions, do you feel you have been able to practice the profession of “design” under satisfactory conditions, or even optimum conditions?
Q.Have you been forced to accept compromises?
A. I have never been forced to accept compromises but I have willingly accepted constraints.
Q. What do you feel is the primary condition for the practice of design and its propagation? A.Recognition of need.
Q.What is the future of design?