„[Object-oriented analysis is] the challenge of understanding the problem domain and then the system's responsibilities in that light.“

Источник: Object-Oriented Software Engineering: A Use Case Driven Approach (1992), p. 185: cited in: " Object Oriented Software Engineering: A Use Case Driven Approach Ivar Jacobson, et al. (1992) http://tedfelix.com/software/jacobson1992.html", Book review by Ted Felix on tedfelix.com, 2006.

„Systems analysis, conceived in a policy sciences framework, is the macro instrument of the systems manager for understanding, evaluating and improving human systems — which are defined as goal oriented interdependent units incorporating people, organization and some form of technology for control, administration or output.“

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— Richard F. Ericson American academic 1919 - 1993

Richard F. Ericson (1979) Improving the human condition: quality and stability in social systems : proceedings of the Silver Anniversary International Meeting, London, England, August 20-24, 1979. Society for General Systems Research. p. 621

„Systems science is a science whose domain of inquiry consists of those properties of systems and associated problems that emanate from the general notion of systemhood.“

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— George Klir American computer scientist 1932 - 2016

George Klir (2001) Facets of Systems Science. Kluwer: New York. p. 5; As cited by: Hieronymi, A. (2013), Understanding Systems Science: A Visual and Integrative Approach. Syst. Res. doi: 10.1002/sres.2215.

„Business System Planning (BSP) and Business Information Control Study (BICS) are two information system planning study methodologies that specifically employ enterprise analysis techniques in the course of their analysis. Underlying the BSP and BICS analysis are the data management problems that result from systems design approaches that optimize the management of technology at the expense of managing the data.“

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— John Zachman American computer scientist 1934

Источник: Business Systems Planning and Business Information Control Study: A comparison, 1982, p. 31

„In a general way it may be said that to think in terms of systems seems the most appropriate conceptual response so far available when the phenomena under study--at any level and in any domain--display the character of being organized, and when understanding the nature of the interdependencies constitutes the research task. In the behavioral sciences, the first steps in building a systems theory were taken in connection with the analysis of internal processes in organisms, or organizations, when the parts had to be related to the whole.“

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— Fred Emery Australian psychologist 1925 - 1997

Источник: The Causal Texture of Organizational Environments (1963), p. 21.

„An example from soft systems thinking is Checkland's appreciation of soft systems methodology. He wants to introduce hard systems approaches to deal with hard problems only after and through a soft systems analysis.“

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— Robert L. Flood British organizational scientist 1959

Robert L. Flood (1993) Dealing with Complexity: An Introduction to the Theory and … - Pagina 127.

„A. D. Hall's (1962) classic account of the methodology was based on his experience with the Bell Telephone Laboratories. Hall sees systems as existing in hierarchies. In systems engineering, plans to achieve a general objective must similarly be arranged in a hierarchy, with the systems engineer ensuring the internal consistency and integration of the plans, The methodology itself ensures the optimization of the system of concern with respect to its objectives. This requires a number of steps, the most important being problem definition, choosing objectives, systems synthesis, systems analysis, systems selection, system development, and current engineering. With Hall, the system of concern is usually a physical entity.“

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— Mike Jackson systems scientist 1951

Michael C. Jackson (1992) Systems Methodology for the Management Sciences. p. 74; About A.D. Hall (1962)

„Analysis of a system reveals how it works; it provides know-how, knowledge, not understanding; that is, explanations of why it works the way it does.“

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— Russell L. Ackoff Scientist 1919 - 2009

This [understanding of why systems work] requires synthetic thinking... Analysis is the way scientists conduct research. Synthetic thinking is exemplified by design.
Ackoff & Greenberg (2008) Turning Learning Right Side Up. p. 61 as cited in: Stephen M Millett (2011) Managing the Future: A Guide to Forecasting and Strategic Planning. p. 52.
2000s

„In order to better understand object-oriented methodologies in general, it helps to understand the people who make up the "object-oriented community" itself. Far from being monolithic, there is a great deal of diversity within this community. Many object-oriented people, for example, seem to focus almost entirely on programming language issues. They tend to cast all discussions in terms of the syntax and semantics of their chosen object-oriented programming language. These people find it impossible (for all intents and purposes) to discuss any software engineering activity (e. g., analysis, design, and testing) without direct mention of some specific implementation language.
Outside of producing executable "prototypes", people who emphasize programming languages seldom have well-defined techniques for analyzing their clients' problems or describing the overall architecture of the software product. A great deal of what they do is intuitive. If they happen to have a natural instinct/intuition for good analysis or good design, their efforts on small-to-medium, non-critical projects can result in respectable software solutions.“

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— Edward V. Berard

Источник: Essays on object-oriented software engineering (1993), p. 5

„The failure of the social sciences to think through and to integrate their several responsibilities for the common problem of relating the analysis of parts to the analysis of the whole constitutes one of the major lags crippling their utility as human tools of knowledge.“

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— Robert Staughton Lynd American sociologist 1892 - 1970

R.S. Lynd (1939) Knowledge of What? p. 15, cited in Karl William Kapp (1976), The nature and significance of institutional economics http://onlinelibrary.wiley.com/doi/10.1111/j.1467-6435.1976.tb01971.x/abstract. in: Kyklos, Vol 29/2, Jan 1976, p. 209