All tests should be traceable to customer requirements.7 The objective of softwa
ID: 3639776 • Letter: A
Question
All tests should be traceable to customer requirements.7 The objective of software testing is to uncover errors. It follows that the most severe defects (from the customer's point of view) are those that cause the program to fail to meet its requirements. Tests should be planned long before testing begins. Test planning (Chapter 17) can begin as soon as the requirements model Is complete. Detailed definition of test cases can begin as soon as the design model has been solidified. Therefore, all tests can be planned and designed before any code has been generated. The Pareto principle applies to software testing. In this context the Pareto principle Implies that 80 percent of all errors uncovered during testing will likely be traceable to 20 percent of all program components. The problem, of course. Is to isolate these suspect components and to thoroughly test them. Testing should begin "in the small" and progress toward testing "in the large." The first tests planned and executed generally focus on individual components. As testing progresses, focus shifts In an attempt to find errors in integrated clusters of components and ultimately in the entire system. Exhaustive testing is not possible. The number of path permutations for even a moderately sized program Is exceptionally large. For this reason. It is Impossible to execute every combination of paths during testing. It Is possible, however, to adequately cover program logic and to ensure that all conditions in the component-level design have been exercised.Explanation / Answer
p 1 all the needs of customer should be fulfilled p 2 customer needs should be known before its being designing p 3 max errors are avoided not upto complete clean product p 4 test should be processed from the basic needs and continues up to full extent p 5 we should do test and we should estimate and prepare similar products without defects as it saves time and at last we will get good products even.