Match each of the key terms with the definition that best fits it.

________ Changing from the old information system to the new one incrementally, starting with one or a few functional components and then gradually extending the installation to cover the whole new system.

Here are the key terms from the chapter. The page where each term is first explained is in parentheses after the term.

1. Acceptance testing

2. Adaptive maintenance

3. Alpha testing

4. Baseline modules

5. Beta testing

6. Build routines

7. Configuration management

8. Corrective maintenance

9. Desk checking

10. Direct installation

11. Electronic performance support system (EPSS)

12. External documentation

13. Help desk

14. Inspection

15. Installation

16. Integration testing

17. Internal documentation

18. Issue tracking system

19. Maintenance

20. Mean time between failures (MTBF)

21. Parallel installation

22. Perfective maintenance

23. Phased installation

24. Preventive maintenance

25. Single location installation

26. Stub testing

27. Support

28. System documentation

29. System librarian

30. System testing

31. Testing harness

32. Unit testing

33. User documentation