“The systems approach to problems focuses on systems taken as a whole, not on their parts taken separately. Such an approach is concerned with total- system performance even when a change in only one or a few of its parts is contemplated because there are some properties of systems that can only be treated adequately from a holistic point of view. These properties derive from the relationship between parts of systems: how the parts interact and fit together”

—  Russell L. Ackoff

Cited in: Haluk Demirkan, James C. Spohrer, Vikas Krishna (2011) The Science of Service Systems. p. 274.
1970s, Towards a System of Systems Concepts, 1971

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Russell L. Ackoff 70
Scientist 1919–2009

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Russell L. Ackoff photo

“When a mess, which is a system of problems, is taken apart, it loses its essential properties and so does each of its parts. The behavior of a mess depends more on how the treatment of its parts interact than how they act independently of each other. A partial solution to a whole system of problems is better than whole solutions of each of its parts taken separately.”

Russell L. Ackoff (1919–2009) Scientist

Cited in: Can Alpaslan, Ian Mitroff (2011) Swans, Swine, and Swindlers: Coping with the Growing Threat of Mega-Crises and Mega-Messes. p. 16.
1970s, The future of operational research is past, 1979

Russell L. Ackoff photo

“A system is more than the sum of its parts; it is an indivisible whole. It loses its essential properties when it is taken apart. The elements of a system may themselves be systems, and every system may be part of a larger system.”

Russell L. Ackoff (1919–2009) Scientist

Ackoff (1973) "Science in the Systems Age: beyond IE, OR and MS." in: Operations Research Vol 21, pp. 664.
1970s

Fritjof Capra photo

“The ideas set forth by organismic biologists during the first half of the twentieth century helped to give birth to a new way of thinking — "systems thinking" — in terms of connectedness, relationships, context. According to the systems view, the essential properties of an organism, or living system, are properties of the whole, which none of the parts have. They arise from the interactions and relationships among the parts. These properties are destroyed when the system is dissected, either physically or theoretically, into isolated elements. Although we can discern individual parts in any system, these parts are not isolated, and the nature of the whole is always different from the mere sum of its parts. The systems view of life is illustrated beautifully and abundantly in the writings of Paul Weiss, who brought systems concepts to the life sciences from his earlier studies of engineering and spent his whole life exploring and advocating a full organismic conception of biology.”

Fritjof Capra (1939) American physicist

Source: The Web of Life (1996), p. 29.

“A system is an open set of complementary, interacting parts, with properties, capabilities and behaviours of the set emerging both from the parts and from their interactions to synthesize a unified whole.”

Derek Hitchins (1935) British systems engineer

Hitchins (1998. p. 195) cited in: Peter Stasinopoulos (2009) Whole System Design: An Integrated Approach to Sustainable Engineering. p. 27

Russell L. Ackoff photo

“The synthetic mode of thought, when applied to systems problems, is called the systems approach. In this approach a problem is not solved by taking it apart but by viewing it as a part of a larger problem.”

Russell L. Ackoff (1919–2009) Scientist

Source: 1970s, Redesigning the future, 1974, p. 14.

“In our definition of system we noted that all systems have interrelationships between objects and between their attributes. If every part of the system is so related to every other part that any change in one aspect results in dynamic changes in all other parts of the total system, the system is said to behave as a whole or coherently.”

Arthur D. Hall (1925–2006) American electrical engineer

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

“In our definition of system we noted that all systems have interrelationships between objects and between their attributes. If every part of the system is so related to every other part that any change in one aspect results in dynamic changes in all other parts of the total system, the system is said to behave as a whole or coherently. 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.”

Arthur D. Hall (1925–2006) American electrical engineer

Source: Definition of System, 1956, p. 23

Buckminster Fuller photo

“Synergy is the only word in our language that means behavior of whole systems unpredicted by the separately observed behaviors of any of the system's separate parts or any subassembly of the system's parts.”

Buckminster Fuller (1895–1983) American architect, systems theorist, author, designer, inventor and futurist

1960s, Operating Manual for Spaceship Earth (1963)
Context: Synergy is the only word in our language that means behavior of whole systems unpredicted by the separately observed behaviors of any of the system's separate parts or any subassembly of the system's parts. There is nothing in the chemistry of a toenail that predicts the existence of a human being.

Russell L. Ackoff photo

“The basic managerial idea introduced by systems thinking, is that to manage a system effectively, you might focus on the interactions of the parts rather than their behavior taken separately.”

Russell L. Ackoff (1919–2009) Scientist

Russell L. Ackoff and Fred Emery (1972) On purposeful systems, cited in: Lloyd Dobyns, Clare Crawford-Mason (1994) Thinking about quality: progress, wisdom, and the Deming philosophy. p. 40.
1970s

“The basic managerial idea introduced by systems thinking, is that to manage a system effectively, you might focus on the interactions of the parts rather than their behavior taken separately.”

Fred Emery (1925–1997) Australian psychologist

Russell L. Ackoff and Fred Emery (1972) On purposeful systems, cited in: Lloyd Dobyns, Clare Crawford-Mason (1994) Thinking about quality: progress, wisdom, and the Deming philosophy. p. 40.

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