John Gall: Complex

John Gall was American physician. Explore interesting quotes on complex.
John Gall: 26   quotes 0   likes

“But how does it come about, step by step, that some complex Systems actually function? This question, to which we as students of General Systemantics attach the highest importance, has not yet yielded to intensive modern methods of investigation and analysis. As of this writing, only a limited and partial breakthrough can be reported, as follows: A COMPLEX SYSTEM THAT WORKS IS INVARIABLY FOUND TO HAVE EVOLVED FROM A SIMPLE SYSTEM THAT WORKED”

John Gall

Source: Systemantics: the underground text of systems lore, 1986, p. 65 cited in "Quotes from Systemantics – Funny, But Scary Too" Posted on agileadvice.com March 3, 2006 by Mishkin Berteig. This quote was mentioned in General systemantics (1975, p. 71)

Question

“A complex system can fail in an infinite number of ways”

John Gall

Source: General systemantics, an essay on how systems work, and especially how they fail..., 1975, p. 92, cited in: Erik Hollnagel (2004) Barriers and accident prevention. p. 182

Way

“A complex system that works is invariably found to have evolved from a simple system that worked. A complex system designed from scratch never works and cannot be patched up to make it work. You have to start over, beginning with a working simple system.”

John Gall

Source: General systemantics, an essay on how systems work, and especially how they fail..., 1975, p. 65, cited in: Grady Booch (1991) Object oriented design with applications. p. 11

“There is a world of difference, psychologically speaking, between the passive observation that Things Don't Work Out Very Well, and the active, penetrating insight that. Complex Systems Exhibit Unexpected Behavior.”

John Gall

Source: General systemantics, an essay on how systems work, and especially how they fail..., 1975, p. 33 cited in: Stanley A. Clayes, David Gelvin Spencer, Martin S. Stanford (1979) Contexts for composition. p. 94

World , Behavior

“A complex system that works is invariably found to have evolved from a simple system that worked. The inverse proposition also appears to be true: A complex system designed from scratch never works and cannot be made to work. You have to start over, beginning with a working simple system.”

John Gall

Source: General systemantics, an essay on how systems work, and especially how they fail..., 1975, p. 71. This statement is known as Gall's law

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