“Experienced object designers explore the design space from many different angles. They refine ideas of how their system should respond while they are in the middle of building and discarding ideas about how their design should work. Getting a design to gel involves making assumptions, seeing how they play out, changing one’s mind or perspective slightly and re-iterating. Design is a difficult, involved task. It inherently is a non-linear process. Yet, we are asked to trace our design results back to system requirements. And, if we uncover some implications during design, we’d like to tune our system requirements to reflect necessary design compromises.”

Abstract
Designing scenarios: Making the case for a use case framework (1993)

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Rebecca Wirfs-Brock13

American software engineer 1953

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“Designed as a companion volume to the acclaimed Object-Oriented Analysis, this book focuses on the middle part of the software lifecycle: the activity of design. It shows readers how to apply object-oriented design, and how to tailor and expand the method to suit specific organization and project needs. Readers will explore the major issues in OOD; the role of OOD in the systems lifecycle; how to use graphical notation; strategies for creating design; and hints for evaluating the efficiency of a design created with OOD. For software engineers and other users undertaking real-world systems development projects and designing overall software architecture for systems will find this reference approach to improving systems design indispensable.”

Ed Yourdon (1944–2016) American software engineer and pioneer in the software engineering methodology

Abstract.
Object-oriented design (1991)

“How a designer gets from thought to thing is, at least in broad strokes, straightforward: (1) A designer conceives a purpose. (2) To accomplish that purpose, the designer forms a plan. (3) To execute the plan, the designer specifies building materials and assembly instructions. (4) Finally, the designer or some surrogate applies the assembly instructions to the building materials. What emerges is a designed object, and the designer is successful to the degree that the object fulfills the designer's purpose”

William A. Dembski (1960) American intelligent design advocate

Opening words of [No Free Lunch: Why Complexity Cannot be Purchased Without Intelligence, Lanham, Md., Rowman & Littlefield, 2002, 0742512975, http://www.arn.org/docs/dembski/wd_nfl_intro.htm, Preface]
2000s

“Game theory brings to the chaos–theory table the idea that generally, societies are not designed, and that most situations don’t come with a rulebook. Instead, people have their own plans and designs on how things should fit together. They want to determine how the game is played, and they see societal designers as myopic busybodies who would imprison them with their theories.”

L. K. Samuels (1951) American writer

Source: In Defense of Chaos: The Chaology of Politics, Economics and Human Action, (2013), p. 372

“Systems with unknown behavioral properties require the implementation of iterations which are intrinsic to the design process but which are normally hidden from view. Certainly when a solution to a well-understood problem is synthesized, weak designs are mentally rejected by a competent designer in a matter of moments. On larger or more complicated efforts, alternative designs must be explicitly and iteratively implemented. The designers perhaps out of vanity, often are at pains to hide the many versions which were abandoned and if absolute failure occurs, of course one hears nothing. Thus the topic of design iteration is rarely discussed. Perhaps we should not be surprised to see this phenomenon with software, for it is a rare author indeed who publicizes the amount of editing or the number of drafts he took to produce a manuscript.”

Fernando J. Corbató (1926–2019) American computer scientist

"A Managerial View of the Multics System Development" http://www.multicians.org/managerial.html, Conference on Research Directions in Software Technology, Providence, Rhode Island, October 10-12, 1977 published in Research Directions in Software Technology (1978), P. Wegner (ed.), MIT Press, ISBN 0262230968, pp. 139-158. Also reprinted in Tutorial: Software Management, Donald J. Reifer (ed.), IEEE Computer Society Press, (1979, 1981, 1986)

“When it comes to the design of social and societal systems of all kinds, it is the users, the people in the system who are the experts. Nobody has the right to design social systems for someone else. It is unethical to do so. Design cannot be legislated, it should not be bought from the expert, and it should not be copied from the design of others. If the privilege of and responsibility for design is "given away," others will take charge of designing our lives and our systems. They will shape our future.”

Béla H. Bánáthy (1919–2003) Hungarian linguist and systems scientist

Source: Designing Social Systems in a Changing World (1996), p. 128; Cited in: Roberto Joseph et al. (2002) " Banathy's Influence on the Guidance System for Transforming Education http://www.indiana.edu/~syschang/decatur/reigeluth_pubs/documents/95_banathy_influence_on_gste.pdf". World Futures: The Journal of General Evolution, 58(5/6) 379-394

“People think it's this veneer — that the designers are handed this box and told, 'Make it look good!' That's not what we think design is. It's not just what it looks like and feels like. Design is how it works.”

Steve Jobs (1955–2011) American entrepreneur and co-founder of Apple Inc.

As quoted in The Guts of a New Machine (30 November 2003) https://www.nytimes.com/2003/11/30/magazine/the-guts-of-a-new-machine.html <br class="br">2000s

“Object-oriented design is a method of design encompassing the process of object-oriented decomposition and a notation for depicting both logical and physical as well as static and dynamic models of the system under design.”

Grady Booch (1955) American software engineer

Source: Object-oriented design: With Applications, (1991), p. 37

“The objective of the Computer-Aided Design Project is to evolve a machine systems which will permit the human designer and the computer to work together on creative design problems.”

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

Source: Computer-Aided Design: A Statement of Objectives (1960), p. iii: Abstract.

“As a noun, design is the named (although sometimes unnamable) structure or behavior of a system whose presence resolves or contributes to the resolution of a force or forces on that system. A design thus represents one point in a potential decision space. A design may be singular (representing a leaf decision) or it may be collective (representing a set of other decisions).
As a verb, design is the activity of making such decisions. Given a large set of forces, a relatively malleable set of materials, and a large landscape upon which to play, the resulting decision space may be large and complex. As such, there is a science associated with design (empirical analysis can point us to optimal regions or exact points in this design space) as well as an art (within the degrees of freedom that range beyond an empirical decision; there are opportunities for elegance, beauty, simplicity, novelty, and cleverness).
All architecture is design but not all design is architecture. Architecture represents the significant design decisions that shape a system, where significant is measured by cost of change.”

Grady Booch (1955) American software engineer

Grady Booch (2006) " On design https://www.ibm.com/developerworks/community/blogs/gradybooch/entry/on_design?lang=en" cited in: Frank Buschmann, ‎Kevlin Henney, ‎Douglas C. Schmidt (2007) Pattern-Oriented Software Architecture, On Patterns and Pattern Languages. p. 214

“The researcher hoping to break new ground in the theory of experimental design should involve himself in the design of actual experiments. The investigator who hopes to revolutionize decision theory should observe and take part in the making of important decisions.”

George E. P. Box (1919–2013) British statistician

Source: Science and Statistics (1976), p. 792

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Rebecca Wirfs-Brock13

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