SE | Notion

Consideration	Waterfall	Iterative	Spiral	Agile	V-Models	Incremental
Project Size	Small to Medium	Medium to Large	Large	Small to Medium	Medium to Large	Small to Large
Project Complexity	Low to Medium	Medium to High	High	Low to High	Medium to High	Medium to High
Requirements Stability	Stable	Can evolve	Can evolve	Likely to change frequently	Moderate stability	Stable to Moderate Stability
Client Involvement	Limited	Continuous	Periodic	High and Continuous	Periodic	Continuous
Budget Constraints	High Predictability, Fixed Budget	Moderate Predictability, Some Flexibility	Some Flexibility	Variable, Suitable for Changing Budgets	Moderate Predictability, Fixed Budget	Moderate Predictability, Some Flexibility
Risk Tolerance	Low	Moderate	High	Moderate	Moderate	Moderate to High
Time-to-Market	Moderate	Faster	Variable	Faster	Moderate	Faster
Documentation Emphasis	Extensive Documentation	Moderate Documentation	Detailed Documentation	Minimal Documentation	Moderate Documentation	Moderate Documentation
Testing Approach	Sequential Testing after Development Phases	Continuous Testing Throughout Iterations	Continuous Testing Throughout the Spiral	Continuous and Collaborative Testing	Testing Conducted After the Completion of Phases	Continuous Testing Throughout Increments
Change Management	Limited Flexibility	High Flexibility	Adaptive to Changes	Highly Adaptive to Changes	Moderate Flexibility	High Flexibility