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Formulating consists of determining the system inputs, outputs, requirements, objectives, constraints. Structuring the system provides one or more methods of organizing the solution, the method of operation, the selection of parts, and the nature of their performance requirements. It is evident that the processes of formulating a system and structuring it are strongly related.

— Harold Chestnut Systems Engineering Methods (1967)

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More quotes by Harold Chestnut

Engineers should press forward with development to meet the diversified needs of people.

Chestnut (1981)

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.

Systems Engineering Tools (1965)

A model may be pictorial, descriptive, qualitative, or generally approximate in nature, or it may be mathematical and quantitative in nature and reasonably precise.

Systems Engineering Tools (1965)

Characteristic of our times are the concepts of complexity, growth and change.

Systems Engineering Tools (1965)

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.

Systems Engineering Tools (1965)

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Quote text and notes from Wikiquote: Harold Chestnut (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.