Software regression

A software regression is a software bug that makes a feature stop functioning as intended after a certain event (for example, a system upgrade, system patching or a change to daylight saving time).^[1] A software performance regression is a situation where the software still functions correctly, but performs more slowly or uses more memory or resources than before.^[2]

Regressions are often caused by encompassed bug fixes included in software patches. One approach to avoiding this kind of problem is regression testing. A properly designed test plan aims at preventing this possibility before releasing any software.^[3] Automated testing and well-written test cases can reduce the likelihood of a regression.

A software regression can be of one of three types:^[4]^[5]

Local – a change introduces a new bug in the changed module or component.
Remote – a change in one part of the software breaks functionality in another module or component.
Unmasked – a change unmasks an already existing bug that had no effect before the change.

References

^ Yehudai, Amiram; Tyszberowicz, Shmuel; Nir, Dor (2007). Locating Regression Bugs (PDF). Haifa Verification Conference. Retrieved 10 March 2018.
^ Shang, Weiyi; Hassan, Ahmed E.; Nasser, Mohamed; Flora, Parminder (11 December 2014). "Automated Detection of Performance Regressions Using Regression Models on Clustered Performance Counters" (PDF). {{cite journal}}: Cite journal requires |journal= (help)
^ Richardson, Jared; Gwaltney, William Jr (2006). Ship It! A Practical Guide to Successful Software Projects. Raleigh, NC: The Pragmatic Bookshelf. pp. 32, 193. ISBN 978-0-9745140-4-8.
^ "Regression testing: Types, Techniques and Benefits - QA Service - Apphawks". Software Testing Company & QA Services - Apphawks. 2019-02-20. Retrieved 2019-12-21.
^ Andrew Powell-Morse (2018-02-07). "Regression Testing: What It Is and How to Use It". Airbrake Blog. Retrieved 2019-12-22.

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[ibm-locating-bugs-1] Yehudai, Amiram; Tyszberowicz, Shmuel; Nir, Dor (2007). Locating Regression Bugs (PDF). Haifa Verification Conference. Retrieved 10 March 2018.

[2] Shang, Weiyi; Hassan, Ahmed E.; Nasser, Mohamed; Flora, Parminder (11 December 2014). "Automated Detection of Performance Regressions Using Regression Models on Clustered Performance Counters" (PDF). {{cite journal}}: Cite journal requires |journal= (help)

[3] Richardson, Jared; Gwaltney, William Jr (2006). Ship It! A Practical Guide to Successful Software Projects. Raleigh, NC: The Pragmatic Bookshelf. pp. 32, 193. ISBN 978-0-9745140-4-8.

[4] "Regression testing: Types, Techniques and Benefits - QA Service - Apphawks". Software Testing Company & QA Services - Apphawks. 2019-02-20. Retrieved 2019-12-21.

[5] Andrew Powell-Morse (2018-02-07). "Regression Testing: What It Is and How to Use It". Airbrake Blog. Retrieved 2019-12-22.

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See also

References