Waterfall Model is a model of software development that moves in a series of fixed stages: requirements specification, design, implementation, testing, and installation. The model works well for small-scale development, but it is too rigid for large- scale system development. For example, clients are rarely able to explain their functional requirements fully at the beginning of the project because they may realize what they want only after they are able to see the system in operation. But they delay system implementation until relatively late in the project, when it is too late to change the software. See incremental development, iterative development, software development life cycle (SDLC), software engineering.
Technipages Explains Waterfall Model
The Waterfall Model was the first Process Model released to the public. It is likewise alluded to as a straight successive life cycle model, it is easy to comprehend and utilize. In a cascade model, each stage must be finished before the following stage can start and there is no covering in the stages.
The Waterfall model is the most punctual SDLC approach that was utilized for programming advancement. The cascade model shows the product advancement process in a direct consecutive stream. This implies at any stage in the model, the development process begins immediately the last stage is finished.
Cascade Model – Design
Cascade approach was the first SDLC Model to be utilized generally in Software Engineering to guarantee the accomplishment of the undertaking. In the “The Waterfall” approach, the entire procedure of programming advancement is isolated into discrete stages. In this Waterfall model, the result of one stage goes about as the contribution to the following stage consecutively.
The accompanying delineation is a portrayal of the various periods of the Waterfall Model.
The consecutive stages in Waterfall model are −
- Requirements gathering and examination
- System design
- Integration and testing
- Development of framework
Common Uses of Waterfall Model
- With the waterfall model, software development activities are carried in successive orders to achieve the best result.
- Each of the phases is waterfall model depends on the accomplishment of the ones that come before it.
- Waterfall model increases software development productivity.
Common Misuses of Waterfall Model
- Skipping a phase/stage of waterfall model doesn’t really affect the software development activity. The phase skipped can be carried out later