Men are not an abstraction Placing work and commerce near residences, but buffering it off, in the tradition set by Garden City theory, is fully as matriarchal an arrangement as if the residences were miles away from work and from men. Men are not an abstraction. They are either around, in person, or they are not. Working places and commerce must be mingled right in with residences if men, like the men who work on or near Hudson Street, for example, are to be around city children in daily life—men who are part of normal daily life, as opposed to men who put in an occasional playground appearance while they substitute for women or imitate the occupations of women. Jane Jacobs, The Death and Life of Great American Cities 9. Scattered Work genderwork
The heart of systems engineering While the client has some knowledge of his symptoms, he may not understand the real causes of them, and it is foolish to try to cure the symptoms only. Thus while the systems engineers must listen to the client, they should also try to extract from the client a deeper understanding of the phenomena. Therefore, part of the job of a systems engineer is to define, in a deeper sense, what the problem is and to pass from the symptoms to the causes. Just as there is no definite system within which the solution is to be found, and the boundaries of the problem are elastic and tend to expand with each round of solution, so too there is often no final solution, yet each cycle of input and solution is worth the effort. A solution which does not prepare for the next round with some increased insight is hardly a solution at all. I suppose the heart of systems engineering is the acceptance that there is neither a definite fixed problem nor a final solution, rather evolution is the natural state of affairs. This is, of course, not what you learn in school, where you are given definite problems which have definite solutions. Richard Hamming, The Art of Doing Science and Engineering: Learning to Learn What the problem isComplete and consistent requirements