“Ultimately, discovery and invention are both problems of classification, and classification is fundamentally a problem of finding sameness. When we classify, we seek to group things that have a common structure or exhibit a common behavior.”

—  Grady Booch

Source: Object-oriented design: With Applications, (1991), p. 133

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "Ultimately, discovery and invention are both problems of classification, and classification is fundamentally a problem …" by Grady Booch?
Grady Booch photo
Grady Booch35
American software engineer 1955

Related quotes

Louis Agassiz photo

“But whatever its defects, the classification of Linnæus was the first attempt at grouping animals together according to certain common structural characters.”

Louis Agassiz (1807–1873) Swiss naturalist

Methods of Study in Natural History (1863), ch. 1, p. 7 https://babel.hathitrust.org/cgi/pt?id=mdp.39015065771407;view=1up;seq=21

“The classification of subject matter may be carried out for all sort of special purposes - to arrange books on shelves, to group inventions in patents, to classify the raw materials, intermediates and products of importance to a particular manufacturer, and so on. All such arrangements have their particular uses and their particular problems.”

Brian Campbell Vickery (1918–2009) British information theorist

Preface to the first edition.
Classification and indexing in science (1958)

Joe Armstrong photo

“I don't like modules. It's a sort of love/hate relationship. The problem with modules is the classification problem. When you have written a function you don't know in what modules you put it in.”

Joe Armstrong (1950–2019) British computer scientist

A Few Improvement to Erlang

“It is essential to realize at this point that the formalism to be developed, although we cast it initially primarily in the framework of natural systems, is in fact applicable to any situation in which a class of objects is associated with real numbers, or in fact classified or indexed by any set whatever. It is thus applicable to any situation in which classification, or recognition, or discrimination is involved; indeed, one of the aims of our formalism is to point up the essential equivalence of the measurement problem in physics with all types of recognition or classification mechanisms based on observable properties of the objects being recognized or classified.”

Robert Rosen (1934–1998) American theoretical biologist

Source: Fundamentals of measurement and representation of natural systems. (1978), Ch. 2. The Basic Formalism; Quoted in: Mikulecky, Donald C. " Robert Rosen: the well‐posed question and its answer‐why are organisms different from machines? http://www.people.vcu.edu/~mikuleck/PPRISS3.html." Systems Research and Behavioral Science 17.5 (2000): 419-432.

“To describe means to classify, and the man Poincaré defies classification, as does indeed his philosophy.”

Tobias Dantzig (1884–1956) American mathematician

Henri Poincaré, Critic of Crisis: Reflections on His Universe of Discourse (1954), Ch. 1. The Iconoclast

Grady Booch photo

“A class is a set of objects that share a common structure and a common behavior”

Grady Booch (1955) American software engineer

Source: Object-oriented design: With Applications, (1991), p. 513

S. I. Hayakawa photo

“SPAN ID=What_we_call_things> What we call things and where we draw the line between one class of things and another depend upon the interests we have and the purposes of the classification. For example, animals are classified in one way by the meat industry, in a different way by the leather industry, in another different way by the fur industry, and in a still different way by the biologist. None of these classifications is any more final than any of the others; each of them is useful for its purpose.

S. I. Hayakawa book Language in Thought and Action

Source: Language in Thought and Action (1949), Giving Things Names, p. 209-210

“Every culture, or subculture, is defined by a set of common values, that is, generally agreed upon preferences. Without a core of common values a culture cannot exist, and we classify society into cultures and subcultures precisely because it is possible to identify groups who have common values.”

Kenneth E. Boulding (1910–1993) British-American economist

Source: 1960s, Economics As A Moral Science, 1969, p. 12

Grady Booch photo

“In object-oriented analysis, we seek to model the world by identifying the classes and objects that form the vocabulary of the problem domain, and in object-oriented design, we invent the abstractions and mechanisms that provide the behavior that this model requires.”

Grady Booch (1955) American software engineer

Source: Object-oriented design: With Applications, (1991), p. 141

“[This set of inputs [can be defined] as 1) input which is always the same or is of many types, 2) input which occurs periodically (or very infrequently), and 3) input which does or does not seek to destroy the system. Their rationale for developing the classification was to aid in the definition of steps to be followed in order to find the] solution of the problem of a large-scale or complex system.”

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

Source: System Engineering (1957), p. 302; As cited in: Thomas C. Ford (2008) Interoperability Measurement. p. 146

Related topics