Computer Science / Unit 9 CS 0476 short lesson, about 20 seconds
The Waterfall
Captions available
The idea
The waterfall model runs phases that flow downward like water — requirements gathered and analyzed, the complete system designed, implemented, tested, then deployed — each phase finishing before the next begins.
In practice
The early decades of software engineering ran predominantly on this shape.
Where people slip
The full-design-first commitment is the model's cost center.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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