WHAT ARE TESTING QUADRANTS ?
The testing quadrants model, helps to ensure that all important test types and test levels are included in the development lifecycle. This model also provides a way to differentiate and describe the types of tests to all stakeholders, including developers, testers, and business representatives.
In the testing quadrants, tests can be business (user) or technology (developer) facing. Some tests support the work done by the Agile team and confirm software behaviour. Other tests can verify the product.»