Regression Testing methods for regression testing Objectives and Aim

1. Regression Testing
BY ABUZER MALVI -1140633 &
ANAMTA SAYYED-1140646

2. Topics to be Covered
 What is Regression Testing ?
 Objectives of Regression Testing
 Aim of Regression Testing
 What’s the Strategy ?
Reset All
Regression Test Selection
Prioritization of Test Cases
 Conclusion

3. Regression: once you fix one bug,
you introduce several new bugs

4. Regression Testing
 Regression testing means the testing process that is done to
find the regressions in the system after doing any changes in
the product.
 Retesting is Regression Testing.
 Regression Testing can be done at any level

5. Module1
Module2
Integration Testing
Successfully
tested without
error

6. Module1
Module2
Integration Testing
Error occurs
after
integrating the
module 3
Module2

7. Objectives
 To check that the Bug has been addressed
 To test other related bugs
 To check remaining part which can be affected
Aim
Bug free System

8. Strategies
Regression
Testing
Retest All
Regression Test
Selection
Prioritization

9. Retest All
 This is one of the Regression testing in which
all the tests in the existing test bucket or suite
should be re-executed.
 This is vey expensive as is requires huge
amount of resources

10. Regression Test Selection
 Instead of selecting the entire test case, it is better to select part of test
cases to be run.

11. Prioritization
 Prioritize the test cases depending on
business impact, critical and Frequently
used functionalities. Selection of test
cases based on priority will greatly reduce
the regression test suite.

12. Test Suite Prioritization
 Priority1: The test cases must be executed otherwise there may be
worse consequences for the release of the product.
 Priority 2: The test cases may be executed, if time permits.
 Priority 3: The test case is not important prior to the current
release. It may be tested shortly after the release of the current
version of the software.
 Priority 4: The test case is never important as its impact is nearly
negligible.

13. Conclusion
 An effective Regression strategy, save organizations both time and Money.
But in current time it more refers to the term Automate (Regression can be
automated)
 Following are the most important tools used for both functional and
Regression testing:
 Quick Test Professional (QTP)
 Rational Functional Tester (RFT)
 Selenium

14. Thank You…