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Rohit S Modi's Advice

Waterfall Model
There exist various software development approaches, aptly defined and designed, which are employed during the development process of a software. These approaches are also referred to as 'Software Development Process Models'. Each process model follows a particular life cycle in order to ensure success in the process of software development.

One such approach used in software development is 'The Waterfall Model'. Waterfall approach was first a '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 phases. These phases in the model are:

Requirement specifications phase
Software design
Implementation
Testing and maintenance

All these phases are cascaded to each other so that the second phase is started as and when a defined set of goals are achieved for first phase and it is signed off, and hence the peculiar name. All the methods and processes undertaken in the model are more visible.
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