Agile or Waterfall Which is Better?

[adisharma]

Hello All, I am working on a freelance testing project and I want to know which model is better for testing in the process and concept point of view between agile and waterfall. Yesterday when i search for difference between them I found this reference and as I know Agile method uses an incremental development approach, the phases of design, production, testing, and other project management may appear several times as well as testing is frequently done in conjunction with the development phase in Agile model to maintain consistent quality. but not an idea about waterfall. Can anyone know which model is useful in testing? and what technique the waterfall model used?