Regression testing is the process of testing changes to computer programs to verify whether older programming still works with new changes. Test coders develop test scenarios and exercises that will test new units of code after they have been written. These scenarios and exercises are used to generate scripts that are run by automated testing tools, such as Seapine's QA Wizard.
Assures that anything unchanged still performs correctly. All unchanged a system components still function as expected and all manual procedures surrounding the systems are still correct. The potential scope of testing is theoretically largest in regression testing since the entire universe of technology and documentation outside of a project's scope should be retested to assure no negative unplanned impacts. In fact, risk assessment can be used to dramatically limit the scope of regression testing to those technology and documentation components that are reasonably at risk.
Regression testing helps to ensure that changes made to the software code do not break other previously working parts of the software. It is important to do regression testing frequently while writing code, because the code as a whole may easily "regress" to a lower level of quality after making a change. Regression testing is necessary, even though a change appears to be working correctly and is believed not to affect the rest of the software.
Selective retesting to detect faults introduced during modification of a system or system component, to verify that modifications have not caused unintended adverse effects, or to verify that a modified system or system component still meets its specified requirements.
Part of the test phase of software development where, as new modules are integrated into the system and the added functionality is tested, previously tested functionality is re-tested to assure that no new module has corrupted the system.
Testing a system after making a change to ensure that the change has no unexpected side effects. Regression testing only works if you have a record of how the tests worked before you made the change you are testing.
Regression testing is a testing technique in which previously tested components/functionality of the system are re-tested to ensure that they function properly even after a change has been made to parts of the system.
selective retesting of a system or component to verify that modifications have not caused unintended effects and that the system or component still complies with its specified requirements [ IEEE 90].
Retesting bugs in the system which had been identified as fixed, usually starting from Alpha on.
Retesting a previously tested program following modification to ensure that faults have not been introduced or uncovered as a result of the changes made.
A testing technique that attempts to determine whether recent changes in one part of the application have unexpectedly adversely affected other parts. In regression testing a standard set of test data is run through software that has been changed. The results are compared to the known outcome of the prior test to validate that any changes to the test results can be explained and that there are no unexpected test results elsewhere.
Re- testing a program. Regression testing is needed following changes made to a program to discover whether parts that were working are no longer working.
Regression testing is any type of software testing which seeks to uncover regression bugs. Regression bugs occur whenever software functionality that previously worked as desired stops working or no longer works in the same way that was previously planned. Typically regression bugs occur as an unintended consequence of program changes.
