> Waterfall approach was first Process Model to be introduced and followed widely in
Software Engineering to ensure success of the project.
> In "The Waterfall" approach, the whole process of software development is divided into separate process phases.
> The phases in Waterfall model are: Requirement Specifications phase, Software Design, Implementation and Testing & Maintenance.
> All these phases are cascaded to each other so that second phase is started as and when defined set of goals are achieved for first phase and it is signed off, so the name "Waterfall Model".
> All the methods and processes undertaken in Waterfall Model are more visible.
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