Waterfall model


Waterfall model is a Design process that emphasizes that a logical progression of steps be taken throughout the Software Development Life Cycle (SDLC), much like the cascading steps down an incremental waterfall.

First introduced by Dr. Winston W. Royce in a paper published in 1970

Waterfall model originated in the manufacturing and construction industries; where the highly structured physical environments meant that design changes became prohibitively expensive much sooner in the development process.



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