Source: Definition of System, 1956, p. 20 cited in: Baleshwar Thaku eds. (2003) Perspectives in resource management in developing countries. p. 54
“For a given system, the environment is the set of all objects outside the system: (1) a change in whose attributes affect the system and (2) whose attributes are changed by the behavior of the system.”
Source: A methodology for systems engineering, 1962, p. 61 cited in: Clute, Whitehead & Reid (1967) Progressive architecture. Vol.48, Nr. 7-9. p. 106
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Arthur D. Hall 18
American electrical engineer 1925–2006Related quotes
Source: General systemantics, an essay on how systems work, and especially how they fail..., 1975, p. 66
At the other extreme is a set of parts that are completely unrelated: that is, a change in each part depends only on that part alone. The variation in the set is the physical sum of the variations of the parts. Such behavior is called independent or physical summativity.
Source: Definition of System, 1956, p. 23
Source: Images of Organization (1986), p. 77-78 (Morgan, 1998); Cited in: Sherryl Stalinski (2005) A Systems View of Social Systems, Culture and Communities. Saybrook Graduate School. p. 5
Source: Organization and environment: Managing differentiation and integration, 1967, p. 4
Source: Definition of System, 1956, p. 18: Italics quote cited in: Thorbjoern Mann (1992) Building Economics for Architects. p. 140

Source: 1930s, Principles of topological psychology, 1936, p. 218, as cited in: Granville Stanley Hall, Edward Bradford Titchener, Karl M. Dallenbach (1937) The American journal of psychology. Vol. 50, p. 374.
Source: Putting systems to work (1992), p. 63 Cited in: Lars Skyttner (2005) General Systems Theory: Problems, Perspectives, Practice. p. 103