Non-functional requirement

Non-functional requirement - criteria that can be used to judge the operation characteristics of a system, rather than specific behaviors. Article “Non-functional requirement” in English Wikipedia has 22.5 points for quality (as of July 1, 2025). The article contains 10 references and 7 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 1.18 points.

This article has the best quality in Estonian Wikipedia. However, this article is the most popular in English version.

In June 2025 the article “Non-functional requirement” was edited by 1 authors in English Wikipedia and written by 2 authors in all languages.

Since the creation of article “Non-functional requirement”, its content was written by 148 registered users of English Wikipedia and edited by 258 registered Wikipedia users in all languages.

The article is cited 104 times in English Wikipedia and cited 256 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #28974 in March 2012
• Global: #44093 in April 2016

The highest popularity rank from 2008:

• Local (English): #21081 in April 2015
• Global: #30060 in April 2015

There are 14 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Estonian (et) Mittefunktsionaalsed nõuded		36.1191
2	English (en) Non-functional requirement		22.4783
3	Czech (cs) Nefunkční požadavky softwarové architektury		21.959
4	Hungarian (hu) Nem funkcionális követelmény		20.3708
5	Persian (fa) نیازمندی غیرعملکردی		14.6293
6	Chinese (zh) 非功能性需求		13.4589
7	Arabic (ar) متطلب لاوظيفي		12.7825
8	Spanish (es) Requisito no funcional		12.7622
9	Norwegian (no) Ikke-funksjonelle krav		12.532
10	Korean (ko) 비기능 요건		7.4722

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Non-functional requirement" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Non-functional requirement		4 592 213
2	Spanish (es) Requisito no funcional		636 976
3	Portuguese (pt) Requisito não funcional		408 161
4	Japanese (ja) 非機能要件		403 024
5	Chinese (zh) 非功能性需求		118 459
6	Ukrainian (uk) Нефункціональні вимоги		30 293
7	Czech (cs) Nefunkční požadavky softwarové architektury		25 886
8	Arabic (ar) متطلب لاوظيفي		20 558
9	Norwegian (no) Ikke-funksjonelle krav		14 350
10	Persian (fa) نیازمندی غیرعملکردی		10 132

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Non-functional requirement" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Non-functional requirement		5 492
2	Japanese (ja) 非機能要件		389
3	Chinese (zh) 非功能性需求		268
4	Portuguese (pt) Requisito não funcional		156
5	Ukrainian (uk) Нефункціональні вимоги		144
6	Spanish (es) Requisito no funcional		137
7	Czech (cs) Nefunkční požadavky softwarové architektury		93
8	Norwegian (no) Ikke-funksjonelle krav		34
9	Hungarian (hu) Nem funkcionális követelmény		28
10	Korean (ko) 비기능 요건		25

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Non-functional requirement" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Non-functional requirement		148
2	Spanish (es) Requisito no funcional		35
3	Portuguese (pt) Requisito não funcional		15
4	Czech (cs) Nefunkční požadavky softwarové architektury		13
5	Norwegian (no) Ikke-funksjonelle krav		8
6	Chinese (zh) 非功能性需求		8
7	Arabic (ar) متطلب لاوظيفي		7
8	Estonian (et) Mittefunktsionaalsed nõuded		5
9	Ukrainian (uk) Нефункціональні вимоги		5
10	Persian (fa) نیازمندی غیرعملکردی		4

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Non-functional requirement" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Czech (cs) Nefunkční požadavky softwarové architektury		1
2	English (en) Non-functional requirement		1
3	Arabic (ar) متطلب لاوظيفي		0
4	Spanish (es) Requisito no funcional		0
5	Estonian (et) Mittefunktsionaalsed nõuded		0
6	Persian (fa) نیازمندی غیرعملکردی		0
7	Croatian (hr) Nefunkcijski zahtjevi		0
8	Hungarian (hu) Nem funkcionális követelmény		0
9	Japanese (ja) 非機能要件		0
10	Korean (ko) 비기능 요건		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Non-functional requirement" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Non-functional requirement		104
2	Chinese (zh) 非功能性需求		33
3	Persian (fa) نیازمندی غیرعملکردی		27
4	Portuguese (pt) Requisito não funcional		15
5	Norwegian (no) Ikke-funksjonelle krav		13
6	Japanese (ja) 非機能要件		11
7	Arabic (ar) متطلب لاوظيفي		10
8	Spanish (es) Requisito no funcional		10
9	Korean (ko) 비기능 요건		10
10	Hungarian (hu) Nem funkcionális követelmény		7

More...

#	Language	Value
ar	Arabic متطلب لاوظيفي
cs	Czech Nefunkční požadavky softwarové architektury
en	English Non-functional requirement
es	Spanish Requisito no funcional
et	Estonian Mittefunktsionaalsed nõuded
fa	Persian نیازمندی غیرعملکردی
hr	Croatian Nefunkcijski zahtjevi
hu	Hungarian Nem funkcionális követelmény
ja	Japanese 非機能要件
ko	Korean 비기능 요건
no	Norwegian Ikke-funksjonelle krav
pt	Portuguese Requisito não funcional
uk	Ukrainian Нефункціональні вимоги
zh	Chinese 非功能性需求

Best Rank

English: #21081 04.2015

Global: #30060 04.2015

Best Rank

English: #28974 03.2012

Global: #44093 04.2016

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information