| Agile Methodology follows an iteration approach. | Waterfall Methodology follows a sequential approach. |
| Development and Testing can be done SIMULTANEOUSLY in Agile. | Development and Testing are two different phases in the Waterfall. |
| There is more communication between DEVELOPERS, CUSTOMERS, and testers. | Communication is less and is only between the project managers and customers. |
| Agile is a more flexible process. | The waterfall is a less flexible process. |
| It follows an INCREMENTAL approach. | A waterfall is a sequential approach. |
| Testing can be performed with the development phase in the Agile approach. | Testing comes after the development phase in the Waterfall approach. |
| Requirements can be changed in between. | Requirements can not be changed once the development phase starts. |