Difference Between Water Fall and V Model

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Permalink Reply by Akshaya Sri on August 19, 2009 at 6:00pm

The waterfall model is a software development model (a process for the creation of software) in which development is seen as flowing steadily downwards (like a waterfall) through the phases of requirements analysis, design, implementation, testing (validation), integration, and maintenance.To follow the waterfall model, one proceeds from one phase to the next in a purely sequential manner.The model maintains that one should move to a phase only when its preceding phase is completed and perfected. Phases of development in the waterfall model are thus discrete, and there is no jumping back and forth or overlap between them.In Waterfall Model the tester role will take place only in the testing phase

V Model or Life cycle testing involves continuous testing of the system during the developmental process. At predetermined points, the results of the development process are inspected to determine the correctness of the implementation. These inspections identify defects at the earliest possible point.

when the project starts both the system development process and system test process begins. The team that is developing the system begins the systems development process and the team that is conducting the system test begins planning the system test process. Both teams start at the same point using the same information.

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