The terms "test scenario" and "test case" are certain used synonymously. Test scenarios are test cases or test scripts, and the series in which they are to be implemented. Test scenarios are test cases that make sure that all business process flows are tested from end to end. Test scenarios are independent tests, or a series of tests that follow each other, where every of them dependent upon the output of the previous one. Test scenarios are set by reviewing functional requirements, and preparing logical groups of functions that can be further wrecked into test procedures.