Different testing approaches are needed because quality has many aspects besides functional requirements, such as making sure the code is reliable and secure. How do you know you’ve done the kinds of testing and quality processes are necessary for your product, especially on an agile project?

The Agile Testing Quadrants help you categorize tests and plan for different testing activities needed over the life of a project. It can be used by the team as a base for this common vocabulary about testing, and as a mechanism to start discussions and encourage collaboration.