“A root definition describing a notional system chosen for its relevance to what the investigator and/or people in the problem situation perceive as matters of contention.”

—  Peter Checkland

Source: Systems thinking, systems practice: includes a 30-year retrospective, 1999, p. 319 cited in: Raymond W. Y. Kao (2010) Sustainable Economy. p. 411

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Peter Checkland 10
British management scientist 1930

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