The process is almost the same as with the waterfall model. Therefore, the individual steps are not described again. A waterfall step can take its place. But there is a big difference. instead of going Into the coding phase, the process steps descend linearly at the bottom of the waterfall, descending upward, This creates a distinctive V shape.
The reason is that it was at every stage of the design. During the testing phase, we found that we have partners that correlate with each other. The time when V-model was developed is when software testing technology was developed. defined and different types of tests are clearly distinguished from each other.
This is a new Emphasis on software testing (with new developments and technologies) requirements engineering and design) developed the waterfall model as the V model.
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Tests are derived directly from design counterparts or requirements. That did it This correlation allows each design step to be verified independently. Another idea developed is traceability at the bottom left of V.
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This means that: Requirements need to be tracked in the system design, so you need to make sure that the requirements are met. Completely and correctly implemented. You can see another advantage when comparing files. From waterfall model to V model.