Waterfall Model
Iterative and Incremental Development

Iterative and Incremental Development

Iterative development was created as a response to inefficiencies and problems found in the waterfall model. Modified Waterfall, Rational Unified Process (RUP) and most, if not all, agile models are based on iterations.

General idea is to develop a system through iterations (repeated cycles) and incrementally (in small portions of time). Through them team members or stakeholders can learn from their mistakes and apply that knowledge on the next iteration.
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