“[In the year 1957] I have just returned from an exciting meeting of the American Society for Engineering Education where I heard a paper on the new discipline of systems engineering. It is no longer sufficient for engineers merely to design boxes such as computers with the expectation that they would become components of larger, more complex systems. That is wasteful because frequently the box component is a bad fit in the system and has to be redesigned or worse, can lead to system failure. We must learn how to design large-scale, complex systems from the top down so that the specification for each component is derivable from the requirements for the overall system. We must also take a much larger view of systems. We must design the man-machine interfaces and even the system-society interfaces. Systems engineers must be trained for the design of large-scale, complex, man-machine-social systems.”

—  A. Wayne Wymore

Systems Movement: Autobiographical Retrospectives (2004)

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American mathematician 1927–2011

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A. Wayne Wymore photo

“In the minds of many writers systems engineering is synonomous with component selection and interface design; that is, the systems engineer does not design hardware but decides what types of existing hardware shall be coupled and how they shall be coupled. Complete agreement that this function is the essence of systems engineering will not be found here, for, besides the very important function of systems engineering in systems analysis, there is the role played by systems engineering in providing boundary conditions for hardware design.”

A. Wayne Wymore (1927–2011) American mathematician

Source: A Mathematical Theory of Systems Engineering (1967), p. 193.

“A new concept and a new method were needed. The concept from the engineering standpoint is the evolution of the engineering scientist, i. e., the scientific generalist who maintains a broad outlook. The method is that of the team approach. On large-scale-system problems, teams of scientists and engineers, generalists as well as specialists, exert their joint efforts to find a solution and physically realize it.
We are led to the concept of the system-design team, a small group of engineers or scientists, to lead a large project and organize the system effort. Such men have been variously called engineering scientists, system engineers, system analysts, or large-scale-system designers. The technique has been variously called the systems approach or the team development method. It is toward this man and his teammates that these discussions are directed. With the realization that not enough can be learned in all the required fields to make him a specialist, enough is introduced to make him aware of the language and problems of the specialist. This generalist is a new quantity in the engineering world, and his education must be begun.”

Robert E. Machol (1917–1998) American systems engineer

Source: System Engineering (1957), p. 8

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“Within the past ten years there have appeared with increasing frequency books, articles, conferences, and monograms dealing with system engineering, system analysis, system design, the systems approach, the design of systems, system theory, and problems of systems engineering. The number of publications and the stature of their authors does not allow the dismissal of the subject as a passing fad. The breadth of engineering activity involved in even a cursory examination of recent publications is of interest… It is therefore obvious that whatever Systems Engineering may or may not be, it is non-sectarian and encompasses activities that are of concern in all phases of engineering. On the other hand undergraduate college offerings akin to Systems Engineering are rather limited and even graduate programs are not extensive.”

Allen B. Rosenstein (1920–2018) American systems engineers

Source: Systems engineering and Modern Engineering Design (1965), p. 1.

“Models are used essentially for evaluation and prediction purposes as well as for the analysis and study of the different parts of the system so that the systems engineer or designer may arrive at sound engineering decisions regarding the system design.”

Harold Chestnut (1917–2001) American engineer

Source: Systems Engineering Tools, (1965), p. 113; As cited in: Alberto Ortiz (1992, p. 12-13)

“General systems theory (in the narrow sense of the term) is a discipline concerned with the general properties and laws of “systems”. A system is defined as a complex of components in interaction, or by some similar proposition. Systems theory tries to develop those principles that apply to systems in general, irrespective of the nature of the system, of their components, and of the relations or “forces” between them. The system components need not even be material, as, for example, in the system analysis of a commercial enterprise where components such as buildings, machines, personnel, money and “good will” of customers enter.”

Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher

Source: 1960s, Robots, Men and Minds (1967), p. 69

“In a society which is producing more people, more materials, more things, and more information than ever before, systems engineering is indispensable in meeting the challenge of complexity.”

Harold Chestnut (1917–2001) American engineer

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“This report summarizes the activities of the M. I. T. Computer-Aided Design (CAD) Project from 1 December 1959 through 3 May 1967 in the development of a generalized 'system of software systems' for generating specialized problem-solving systems using high-level language techniques and advanced computer graphics. Known as the AED Approach (for Automated Engineering Design) the Project results are applicable not only to mechanical design, as an extension of earlier development of the APT System for numerical control, but to arbitrary scientific, engineering, management, and production systems as well.”

Douglas T. Ross (1929–2007) American computer scientist

D.T. Ross & John Erwin Ward (1968). Investigations in computer-aided design for numerically controlled production http://dspace.mit.edu/bitstream/handle/1721.1/755/FR-0351-19563962.pdf?sequence=1. Electronic Systems Laboratory, Electrical Engineering Dept., Massachusetts Institute of Technology. p. iii Abstract.

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