VDict - Definition of Waterfall Model

Computing (FOLDOC) dictionary

Waterfall Model

model, described by W. W. Royce in 1970, in which development

is supposed to proceed linearly through the phases of

requirements analysis, design, implementation, testing

(validation), integration and maintenance. The Waterfall

Model is considered old-fashioned or simplistic by proponents

of object-oriented design which often uses the spiralmodel instead.

Earlier phases are sometimes called "upstream" and later ones

"downstream".

[W. W. Royce, "Managing the Development of Large Software

Systems", Proceedings of IEEE WESCON, August 1970].

(1997-11-23)

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