What are we comparing 

At a high level, Waterfall and Agile are not just delivery methods—they represent fundamentally different beliefs about how work gets done. 

Waterfall assumes: 

• Requirements can be known upfront 

• Change is a risk to be controlled 

• Delivery should be sequential and gated 

Agile assumes: 

• Requirements evolve 

• Change is expected and valuable 

• Delivery should be iterative and incremental