![]() Some verification and validation usually do this mean that will ensure that the output of the stage is consistent with its input (which is the output of the previous step), and that the output of the stage is consistent with the overall requirements of the system. First, to identify the end of a phase and the beginning of the next, some certification techniques have to be employed at the end of each step. ![]() Linear ordering of activities has some significant consequences. The waterfall model is a continuous software development model in which development is seen as flowing steadily downwards (like a waterfall) through the steps of requirements analysis, design, implementation, testing (validation), integration, and maintenance. In this method, the whole process of software development is divided into various phases. The waterfall is a universally accepted SDLC model. Here, are some important phases of SDLC life cycle: Waterfall Model These models are also called " Software Development Process Models." Each process model follows a series of phase unique to its type to ensure success in the step of software development. ![]() There are different software development life cycle models specify and design, which are followed during the software development phase. Software Development life cycle (SDLC) is a spiritual model used in project management that defines the stages include in an information system development project, from an initial feasibility study to the maintenance of the completed application.
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