What is the Difference Between Waterfall Model and V Model?
🆚 Go to Comparative Table 🆚The Waterfall model and the V model are both widely used software development methodologies. They help in developing applications in a systematic way, but they have some key differences:
- Cost: The Waterfall model is generally less expensive than the V model.
- Simplicity: The Waterfall model is simpler, while the V model has an intermediate level of simplicity.
- Flexibility: The Waterfall model is rigid, whereas the V model has some flexibility.
- Defect Identification: In the Waterfall model, defects are identified during the testing phase, while in the V model, defects are identified from the initial phase.
- Testing: In the V model, testing activities start with the first stage, while in the Waterfall model, testing is done after the completion of the development phase.
- Phases: Both models have different phases, but they follow a similar structure. In the Waterfall model, phases are followed sequentially, while in the V model, phases are both sequential and simultaneous.
In summary, the primary difference between the Waterfall model and the V model is the way they handle defect identification and testing. The Waterfall model identifies defects during the testing phase, while the V model identifies defects from the initial phase. Additionally, the V model is more flexible and expensive compared to the Waterfall model.
Comparative Table: Waterfall Model vs V Model
The Waterfall Model and V Model are two different software development methodologies. Here is a table highlighting the main differences between them:
Parameter | Waterfall Model | V Model |
---|---|---|
Definition | Develop the application first, followed by various types of testing. | Divides the entire model into sub-development stages, with an associated testing phase for every stage in the development cycle. |
Defect Identification | Defects are identified in the testing phase. | Defects are identified from the initial phase. |
Cost | Low. | Expensive. |
Simplicity | Simple. | Intermediate. |
Flexibility | Rigid. | Little flexible. |
Return to Earlier Phases | Not allowed. | Allowed. |
Customer Involvement | Less. | More. |
Number of Defects | Lower. | Higher. |
In the Waterfall Model, the software testing is done after the completion of the development phase, while in the V Model, the testing activities start with the first stage of the development cycle. The V Model is more flexible and allows for returning to earlier phases, which is not allowed in the Waterfall Model. The V Model also involves more customer involvement compared to the Waterfall Model.
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