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"Engineers should press forward with development to meet the diversified needs of people."
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Harold ChestnutFormulating and structuring a system provide methods for relating (1) — Harold Chestnut
"Formulating and structuring a system provide methods for relating (1) what the system consists of in the mind of the persons or group desiring it; (2)what it means in terms of the persons or group designing and building it; and (3) in terms of the persons or groups operating, using and servicing it. They provide a set of "reasonable" parts and methods of relating them so that the many persons working on the system can understand the whole in sufficient detail for their purposes, and their particular parts in explicit detail so that they may contribute their best efforts to the extent required. A further purpose of system formulation is to recognize the magnitude of the job, including the possible pitfalls."
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Harold Chestnut
Harold Chestnut
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Harold (Hall) Chestnut was an American electrical engineer, control engineer and manager at General Electric and author, who helped establish the fields of control theory and systems engineering.
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"The term closed loop-learning process refers to the idea that one learns by determining what s desired and comparing what is actually taking place as measured at the process and feedback for comparison. The difference between what is desired and what is taking place provides an error indication which is used to develop a signal to the process being controlled."
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Harold ChestnutQuote
"A model may be pictorial, descriptive, qualitative, or generally approximate in nature, or it may be mathematical and quantitative in nature and reasonably precise."
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Harold ChestnutQuote
"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."
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Harold ChestnutQuote
"In addition to technical problems, systems also have organizational and logistical problems. Many different people may be involved over a wide physical or geographic coverage and over a long period of time. Many may work for different companies or organizations with different rules and methods of operating. Very many data and much knowledge are involved. The organizational problem concerns itself with the question of how all these people can work together most effectively for the common purpose."
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Harold ChestnutQuote
"Knowledge about the process being modeled starts fairly low, then increases as understanding is obtained and tapers off to a high value at the end."
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Harold Chestnut