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Frases de Edward Yourdon

Edward Nash Yourdon foi um consultor de computação, autor de várias obras e professor universitário, e um pioneiro reconhecido na metodologia da Engenharia de Software de programação estruturada. Wikipedia  

✵ 30. Abril 1944 – 20. Janeiro 2016
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Edward Yourdon: 7   citações 0   Curtidas

Edward Yourdon: Frases em inglês

“[Object-oriented analysis is] the challenge of understanding the problem domain and then the system's responsibilities in that light.”

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Ed Yourdon

Fonte: Object-oriented design (1991), p. 8-9; as cited in: Elisa Bertino, ‎Susan Urban (1994) Object-Oriented Methodologies and Systems. p. 160.

“OOA - Object-Oriented Analysis - is based upon concepts that we first learned in kindergarten: objects and attributes, wholes and parts, classes and members.”

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Ed Yourdon

Fonte: Object-oriented design (1991), p. 1; cited in: Sten Carlsson and Benneth Christiansson. (1999) " The Concept of Object and its Relation to Human Thinking: Some Misunderstandings Concerning the Connection between Object-Orientation and Human Thinking http://www.vits.org/publikationer/dokument/289.pdf." Informatica, Lith. Acad. Sci. 10.2. p. 147-160.

“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.”

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Ed Yourdon

Abstract.
Object-oriented design (1991)

“To us, analysis is the study of a problem domain, leading to a specification of externally observable behavior; a complete, consistent, and feasible statement of what is needed; a coverage of both functional and quantified operational characteristics”

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Ed Yourdon

e.g. reliability, availability, performance
Fonte: Object-oriented design (1991), p. 18.

“Subject. A Subject is a mechanism for guiding a reader (analyst, problem domain expert, manager, client) through a large, complex model. Subjects are also helpful for organizing work packages on larger projects, based upon initial OOA investigations.”

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Ed Yourdon

Fonte: Object-oriented design (1991), p. 106.

“A system composed of 100,000 lines of C++ is not be sneezed at, but we don't have that much trouble developing 100,000 lines of COBOL today. The real test of OOP will come when systems of 1 to 10 million lines of code are developed.”

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Ed Yourdon

Yourdon (1990) cited in: Andreas Paepcke (1991) Object-oriented Programming Systems, Languages and Applications. p. 166.

“Elements (lines of code) in a coincidentally-cohesive module have no relationship. Typically occurs as the result of modularizing existing code, to separate out redundant code.”

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Ed Yourdon

Fonte: Structured design: fundamentals of a discipline of computer program and systems design (1979), p. 109; as cited in " Design http://swansonsoftware.com/acme/default.asp" at swansonsoftware.com Draft Version 0.9, December 3 2005.