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The life cycle of a software application is always riddled with bugs and the time and cost that it takes to fix such bugs can be staggering.It is a classical model with combination of linear and sequential approach. This model is named "Waterfall" for a specific reason as it has following steps that doesn't need to overlap each other and must be followed in a order. The generic steps are as follows:Requirements analysis and specification, design, implementation, and unit testing, integration and system testing, and operation and maintenanc

Talking about Advantages of Waterfall Model in Software Testing: A waterfall development process is a proven way to be sure your business runs smoothly. There is a set with deadlines for each stage of development and a product can proceed through the development process model phases one by one. The waterfall development process model divides the product development cycle into several stages. The advantage of waterfall development is that it follows the concept of departmentalization and control. Here are few limitations of the Waterfall Model: The disadvantage of the waterfall approach is that it requires a lot of time, effort, and money. In addition, it is a model where requirements are at risk of changing significantly. With a continuous flow of requirements, status updates, and changes, a waterfall process is often the least flexible and most risky way of managing a project.

In a waterfall model of Software Testing, each phase must be completed before the next phase can begin and there is no overlapping in the phases. The waterfall Model illustrates the software development process in a linear sequential flow. This is a great example of a waterfall model. A functional test of the application has been written and is being used to verify the software works as expected. This phase of the waterfall model will not overlap with any other phase. The waterfall Model illustrates the software development process in a linear sequential flow.

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