Retrospective

{{Short description|Look back at events that took place before}}

{{other uses}}

A retrospective (from Latin {{Lang|la|retrospectare}}, "look back"), generally, is a look back at events that took place, or works that were produced, in the past. As a noun, retrospective has specific meanings in software development, popular culture, and the arts. It is applied as an adjective, synonymous with the term retroactive, to laws, standards, and awards.

Awards

A retrospective or retroactive award is one which is created and then awarded to persons who would have received it at a time when the awards were not given, such as the 1945 Retrospective Hugo Awards for science fiction.{{cite web | title=Retrospective Hugo Awards | website=The Hugo Award | date=20 January 2021 | url=https://www.thehugoawards.org/category/retrospective-hugo-awards/ | access-date=4 January 2025}}

Law

The term is used in situations where the law (statutory, civil, or regulatory) is changed or reinterpreted, affecting acts committed before the alteration. When such changes make a previously committed lawful act now unlawful in a retroactive manner, this is known as an ex post facto law or retroactive law. Because such laws punish the accused for acts that were not unlawful when committed, they are rare, and not permissible in most legal systems.{{cite web | title=Retrospective Laws | website=Rule of Law Education Centre | date=1 September 1939 | url=https://www.ruleoflaw.org.au/principles/retrospective-laws/ | access-date=4 January 2025}}{{cite web | title=A common law principle | website=ALRC | date=12 January 2016 | url=https://www.alrc.gov.au/publication/traditional-rights-and-freedoms-encroachments-by-commonwealth-laws-alrc-report-129/13-retrospective-laws/a-common-law-principle-12/ | access-date=4 January 2025}}

Conversely, a form of retrospective law commonly called an amnesty law may decriminalize certain acts. A pardon has a similar effect, in a specific case instead of a class of cases. An in mitius change may alleviate possible consequences for unlawful acts (for example, by replacing the death sentence with lifelong imprisonment) retroactively. Finally, when a previous law is repealed or otherwise nullified, it is no longer applicable to situations to which it had been, even if such situations arose before the law was voided; this principle is known as nullum crimen, nulla poena sine praevia lege poenali.{{cn|date=January 2025}}

Software development

The term is also used in software engineering, where a retrospective is a meeting held by a project team at the end of a project or process (often after an iteration) to discuss what was successful about the project or time period covered by that retrospective, what could be improved, and how to incorporate the successes and improvements in future iterations or projects. In agile development, retrospectives play a very important role in iterative and incremental development. At the end of every iteration, a retrospective is held to look for ways to improve the process for the next iteration.{{cite web | title=Agile Retrospectives | website=Collaboration software for software, IT and business teams | url=https://www.atlassian.com/agile/scrum/retrospectives | access-date=4 January 2025}}{{cite web | last=Francino | first=Yvette | title=What is an Agile retrospective? Definition from SearchSoftwareQuality | website=Search Software Quality | date=7 October 2021 | url=https://www.techtarget.com/searchsoftwarequality/definition/Agile-retrospective | access-date=4 January 2025}}{{cite web | last=Rojewski | first=Anders | title=Agile Retrospectives: the Why, the What, and the How | website=Neatro | date=28 January 2021 | url=https://www.neatro.io/blog/agile-retrospective/ | access-date=4 January 2025}}

Standards

In the context of scientific and technical standards, retrospectivity applies current norms to material that pre-dates new rules. An example of a retrospective or retroactive standard is the International Code of Zoological Nomenclature (ICZN Code), a convention which governs the formal scientific naming of animals, of which the 4th edition is effective since 2000. All previous editions of the ICZN Code, or previous other rules and conventions, are disregarded today,{{Cite web |url=http://www.nhm.ac.uk/hosted-sites/iczn/code/index.jsp |title=International Code of Zoological Nomenclature, Art. 86.3 |access-date=2010-07-16 |archive-date=2018-08-20 |archive-url=https://web.archive.org/web/20180820040118/http://www.nhm.ac.uk/hosted-sites/iczn/code/index.jsp |url-status=dead }} and the scientific names published in former times are to be evaluated only under the present edition of the ICZN Code.{{cn|date=January 2025}}

See also

References

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