viii - Software testing

Question 1

can only show the presence of errors in a program. It cannot demonstrate that there are no remaining faults.

Answer 1

Testing

Question 2

is the responsibility of the software development team. A separate team should be responsible for testing a system before it is released to customers. In the user testing process, customers or system users provide test data and check that tests are successful.

Answer 2

Development testing

Question 3

Development testing includes [1], in which you test individual objects and methods; [2], in which you test related groups of objects; and [3], in which you test partial or complete systems.

Answer 3

1. unit testing
2. component testing
3. system testing

Question 4

When testing software, you should try to [1] the software by using experience and guidelines to choose types of test cases that have been effective in discovering defects in other systems.

Answer 4

‘break’

Question 5

Wherever possible, you should write [1]. The tests are embedded in a program that can be run every time a change is made to a system.

Answer 5

automated tests

Question 6

is an approach to development where tests are written before the code to be tested. Small code changes are made and the code is refactored until all tests execute successfully.

Answer 6

Test-first development

Question 7

is useful because it replicates the practical use of the system. It involves inventing a typical usage scenario and using this to derive test cases.

Answer 7

Scenario testing

Question 8

is a user testing process where the aim is to decide if the software is good enough to be deployed and used in its operational environment.

Answer 8

Acceptance testing