| Process Model | When to Use |
|---|---|
| Waterfall | When requirements are well understood and unlikely to change |
| V Model | When high reliability and thorough testing are required |
| Incremental | When there is a need to deliver parts of the system early and get feedback |
| Unified Process (UP) | When the project is large, complex, and requires iterative development |
| Component-Based Development | When reusable components are available or the system can be built from them |
| Formal Methods | When correctness and mathematical precision are critical (e.g., safety-critical systems) |
| Aspect-Oriented Design | When cross-cutting concerns like logging or security need modular handling |