1. Software Testing
Lab 1

2. Lab Agenda Bug’s life-cycle Examples of real bug reports
Practice: ATM system

3. Bug’s life-cycle Bug => Software problem
Life-cycle => refers to the various stages a software bug passes by.

4. Bug’s life-cycle: Scenario 1

5. Bug’s life-cycle
Open state: when a bug’s is first found by a software tester, it is logged and assigned to a programmer to be fixed.

6. Bug’s life-cycle
Resolved state: once the programmer fixes the code and assigns it back to the tester it becomes resolved.

7. Bug’s life-cycle
Closed state: if a fixed bug passes a regression test performed by the tester, it becomes in the closed state (final state).

8. Bug’s life cycle: Scenario 2

9. Generic bug’s life-cycle

10. Generic bug’s life-cycle
Review state: when the project manager / committee or sometimes called “Change control board” decide whether the bug should be fixed or not.
Deferred state: when the review may determine that the bug should be considered for fixing at sometime in the future, but not for this release of the software.

11. Examples of real bug reports

12. Examples of real bug reports (cont.)

13. Practice: ATM System