![]() Testing is done so that the client does not face any problem during the installation of the software. ![]() The software designed, needs to go through constant software testing to find out if there are any flaws or errors. Integration and Testing: All the units developed in the implementation phase are integrated into a system after testing of each unit.Each unit is developed and tested for its functionality which is referred to as Unit Testing. Implementation: With inputs from system design, the system is first developed in small programs called units, which are integrated into the next phase.The software code to be written in the next stage is created now. System Design helps in specifying hardware and system requirements and also helps in defining overall system architecture. System Design: The requirement specifications from the first phase are studied in this phase and system design is prepared.Here, the specifications of the input and output or the final product are studied and marked. Requirements: The first phase involves understanding what needs to design and what is its function, purpose, etc.What are the different phases of the waterfall model? The waterfall model is a sequential design process in which progress is seen as flowing steadily downwards ( like a waterfall) through the phases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance.Īs the Waterfall Model illustrates the software development process in a linear sequential flow hence it is also referred to as a Linear-Sequential Life Cycle Model. The outcome of one phase acts as the input for the next phase sequentially. This means that any phase in the development process begins only if the previous phase is complete. In " The Waterfall" approach, the whole process of software development is divided into separate phases. The waterfall model is the earliest SDLC approach that was used for software development. In a Waterfall model, each phase must be completed before the next phase can begin and there is no overlapping in the phases. ![]() The Waterfall Model was the first Process Model to be introduced. ![]()
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