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Chapter 9

Chapter 9. Testing the System. Chapter 9. Function testing Performance testing Acceptance testing Installation testing Test documentation Testing safety-critical systems. System Testing Process.

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Chapter 9

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  1. Chapter 9 Testing the System

  2. Chapter 9 • Function testing • Performance testing • Acceptance testing • Installation testing • Test documentation • Testing safety-critical systems

  3. System Testing Process • Function testing: does the integrated system perform as promised by the requirements specification? • Performance testing: are the non-functional requirements met?

  4. System Testing Process • Acceptance testing: is the system what the customer expects? • Installation testing: does the system run at the customer site(s)?

  5. System Testing

  6. One-minute quiz • How does system testing differ from unit and integration testing?

  7. In a method, a variable did not get initialized properly. Which type of testing would most likely expose this defect? • Unit testing • Integration testing • Function testing • Performance testing • Acceptance testing • Installation testing

  8. A gas pump system is supposed to allow the user to choose whether or not a receipt is printed, but the print function has not been implemented. Which type of testing is most likely to expose this defect? • Unit testing • Integration testing • Function testing • Performance testing • Acceptance testing • Installation testing

  9. A configuration file used by the reporting subsystem is not placed in the correct directory in the customer's environment. Which type of testing is most likely to expose this defect? • Unit testing • Integration testing • Function testing • Performance testing • Acceptance testing • Installation testing

  10. The customer is unhappy with the number of screens that must be traversed before getting to the parts list screen, a screen accessed frequently when using the system.Which type of testing is most likely to expose this defect? • Unit testing • Integration testing • Function testing • Performance testing • Acceptance testing • Installation testing

  11. Techniques Used in System Testing • Test plan • Regression testing • Configuration management • versions and releases • production system vs. development system • deltas, separate files, and conditional compilation • change control

  12. Test Plan • Define the subsystems to be tested • Describe how, where, when, and by whom the tests will be conducted

  13. Regression Testing • Identifies new faults that may have been introduced as current ones are being corrected • Verifies a new version or release still performs the same functions in the same manner as an older version or release

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