Software testing life Software testing life comprises of various activities with specific goals. Organizations may
tweak these to align with their corporate philosophy, but the basic essence remains the same. In the waterfall model, the activities are performed in phases as shown in Waterfall diagram below, whereas in Agile model, all these activities are performed in every release, as shown in the following agile diagram below click the link to see agile diagram . : https://www.webomates.com/blog/software-testing/software-testing-life-cycle/