“Operational research OR is regarded by many as being in crisis. If OR is taken to be ‘classical OR’, this is indisputable … If, however, the definition of OR is widened to embrace other systems-based methodologies for problem solving, then a diversity of approaches may herald not crisis, but increased competence and effectiveness in a variety of different problem contexts.”
As cited in Jackson (2007, p. 15)
Towards a System of Systems Methodologies (1984)
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Mike Jackson 11
systems scientist 1951Related quotes
Source: 1940s - 1950s, Introduction to Operations Research (1957), p. 7

Preface, cited in Gharajedaghi, Jamshid. Systems thinking: Managing chaos and complexity: A platform for designing business architecture http://booksite.elsevier.com/samplechapters/9780123859150/Front_Matter.pdf. Elsevier, 2011. p. xiii
Towards a Systems Theory of Organization, 1985
Source: 1960s - 1970s, The Systems Approach (1968), p. 229; cited in Charles Smith (2007, p. 43)
Source: Systems Engineering Tools, (1965), Systems Engineering Methods (1967), p. 24; First paragraph of Ch. 2. System Organization, Scheduling, and Record-Keeping
Interview with Dr. Joseph Shaw https://remnantnewspaper.com/web/index.php/fetzen-fliegen/item/5036-interview-with-dr-joseph-shaw (August 28, 2020)

2018, "You are stealing our future" (December 2018)
Michael C. Jackson (1992) Systems Methodology for the Management Sciences. p. 74; About A.D. Hall (1962)