V-shaped lifecycle model
The main difference between v-shaped development model and waterfall development model is the early test planning in v-shaped model.V-shaped software development model may be applicable to projects where:
Advantages
- Simple and easy to use.
- Each phase has specific deliverables.
- Higher chance of success over the waterfall model due to the development of test plans early on during the life cycle.
- Works well for where requirements
are easily understood.
Disadvantages
- Very inflexible, like the waterfall model.
- Little flexibility and adjusting scope is difficult and expensive.
- Software is developed during the implementation phase, so no early prototypes of the software are produced.
- Model doesn't provide a clear
path for problems found during testing phases.
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