Software testing basic

1. Software testing basic

2. Main contents • Why is testing necessary? • What is testing? • Test Design techniques • Test level • Test type • How to write test case • Bug tracker • Some test management tools

3. Why is Testing necessary? • Different (Error-Defect-Failure) • Bug life cycle • Role of Testing

4. Why is Testing necessary? • Different (Error-Defect-Failure) • Error (mistake): human action that produces an incorrect result + Mistake in analyzing + Mistake in programing… • Defect (bug, fault): error is found by tester • Fail (Failure): when the implementation of the defects are executed, failure occur in the system.

5. Why is Testing necessary? • Bug life cycle

6. Why is Testing necessary? • Role of Testing • Identify defects • Measure the software quality by: + The number of defects found + The number of test case run + Passing test  reduce failure or risk in system + Failing test  provide information to improve the quality of system

7. What is Testing? • Testing-Quality Assurance-Quality Control • Different (Testing-Debugging) • Different (Build version and Release version) • Independent testing

8. What is Testing? • Testing-Quality Assurance (QA)-Quality Control(QC) • QA: focus on process (define and improve the process) • QC: focus on quality of product (finding defects) • Testing is the activity of QC, includes activities: + Verification: ensures that the product is built according to the requirements and design specification + Validation: ensures that the product meets the user’s needs (customer’s needs)

9. What is Testing? • Different (Testing-Debugging) • Testing: + Find defects + Retest bugs + Tester tests • Debugging: + Identify the cause of bugs + Repair code + Programmer debugs

10. What is Testing? • Different (Build version and Release version) • Build version: is a version of a software that is still in testing • Release version: is a build version that is sent to the customer (no longer in testing).

11. What is Testing? • Independent testing • Test is designed by a person wrote software • Test is designed by other people from development team • Test is designed by test team • Test is designed by different organization

12. Test Design Techniques • Static testing techniques • Dynamic testing techniques

13. Test Design Techniques • Static testing techniques

14. Test Design Techniques • Dynamic testing techniques

15. Test Levels What users really need Acceptance testing Requirements System testing Design Integration testing Unit testing Code

16. Test Levels • Component/Unit testing • Integration testing • System testing • Acceptance testing • Alpha testing: performed by customers at the developing organization’s location • Beta testing: performed by customers at their own location

17. Test Types • Functional testing • Non-Functional testing • Maintenance testing

18. Test Types • Functional testing • Requirement based testing • Business process based testing

19. Test Types • Non-Functional testing • Reliability • Usability • Efficiency • Maintainability • Portability • Different (Performance testing, Load testing, Stress testing) • Performance (Time) • Load (User) • Stress (Hardware resource-CPU, RAM)

20. Test Types • Maintenance testing • Re-testing and Regression testing

21. Test case

22. Test case Tested date Closed date Closed version Tested version….

23. Bug tracker