Observer pattern

en

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Observer pattern

Quality:

Observer pattern - design pattern. Article “Observer pattern” in English Wikipedia has 41.5 points for quality (as of July 1, 2026). The article contains 12 references and 20 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Observer pattern”, its content was written by 252 registered users of English Wikipedia and edited by 692 registered Wikipedia users in all languages.

The article is cited 144 times in English Wikipedia and cited 963 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #17007 in March 2003
  • Global: #17864 in March 2009

The highest popularity rank from 2008:

  • Local (English): #22900 in April 2015
  • Global: #29885 in April 2015

There are 23 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, 2026 (including revision history and pageviews for previous years).

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

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Observer pattern
41.4823
2Chinese (zh)
观察者模式
33.4799
3Russian (ru)
Наблюдатель (шаблон проектирования)
30.4536
4Ukrainian (uk)
Спостерігач (шаблон проєктування)
26.1777
5Spanish (es)
Observer (patrón de diseño)
25.938
6German (de)
Beobachter (Entwurfsmuster)
22.7353
7Hungarian (hu)
Megfigyelő programtervezési minta
21.382
8Galician (gl)
Observer (padrón de deseño)
21.03
9Czech (cs)
Observer (návrhový vzor)
17.1302
10Portuguese (pt)
Observer
15.7518
More...

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

Most popular in all the time

The most popular language versions of the article "Observer pattern" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Observer pattern
4 923 330
2German (de)
Beobachter (Entwurfsmuster)
669 820
3Russian (ru)
Наблюдатель (шаблон проектирования)
596 075
4Spanish (es)
Observer (patrón de diseño)
316 431
5Japanese (ja)
Observer パターン
302 292
6French (fr)
Observateur (patron de conception)
273 818
7Polish (pl)
Obserwator (wzorzec projektowy)
175 541
8Chinese (zh)
观察者模式
118 625
9Korean (ko)
옵서버 패턴
107 058
10Italian (it)
Observer pattern
103 304
More...

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

Most popular in June 2026

The most popular language versions of the article "Observer pattern" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Observer pattern
5 072
2German (de)
Beobachter (Entwurfsmuster)
578
3Russian (ru)
Наблюдатель (шаблон проектирования)
279
4Japanese (ja)
Observer パターン
242
5Chinese (zh)
观察者模式
224
6Spanish (es)
Observer (patrón de diseño)
164
7Polish (pl)
Obserwator (wzorzec projektowy)
128
8French (fr)
Observateur (patron de conception)
118
9Portuguese (pt)
Observer
49
10Italian (it)
Observer pattern
47
More...

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

The highest AI

Language versions of the article "Observer pattern" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Observer pattern
252
2German (de)
Beobachter (Entwurfsmuster)
87
3French (fr)
Observateur (patron de conception)
58
4Russian (ru)
Наблюдатель (шаблон проектирования)
45
5Italian (it)
Observer pattern
40
6Spanish (es)
Observer (patrón de diseño)
24
7Dutch (nl)
Observer (ontwerppatroon)
22
8Polish (pl)
Obserwator (wzorzec projektowy)
22
9Korean (ko)
옵서버 패턴
18
10Ukrainian (uk)
Спостерігач (шаблон проєктування)
16
More...

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

The highest AI in June 2026

Language versions of the article "Observer pattern" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Arabic (ar)
المراقب (نموذج تصميم)
1
2Bulgarian (bg)
Наблюдател (шаблон)
0
3Catalan (ca)
Patró observador
0
4Czech (cs)
Observer (návrhový vzor)
0
5German (de)
Beobachter (Entwurfsmuster)
0
6English (en)
Observer pattern
0
7Spanish (es)
Observer (patrón de diseño)
0
8Persian (fa)
الگوی ناظر
0
9French (fr)
Observateur (patron de conception)
0
10Galician (gl)
Observer (padrón de deseño)
0
More...

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

The highest CI

Language versions of the article "Observer pattern" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Observer pattern
144
2Ukrainian (uk)
Спостерігач (шаблон проєктування)
143
3German (de)
Beobachter (Entwurfsmuster)
88
4Chinese (zh)
观察者模式
73
5Korean (ko)
옵서버 패턴
62
6French (fr)
Observateur (patron de conception)
57
7Russian (ru)
Наблюдатель (шаблон проектирования)
57
8Japanese (ja)
Observer パターン
48
9Persian (fa)
الگوی ناظر
44
10Italian (it)
Observer pattern
43
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
المراقب (نموذج تصميم)
bgBulgarian
Наблюдател (шаблон)
caCatalan
Patró observador
csCzech
Observer (návrhový vzor)
deGerman
Beobachter (Entwurfsmuster)
enEnglish
Observer pattern
esSpanish
Observer (patrón de diseño)
faPersian
الگوی ناظر
frFrench
Observateur (patron de conception)
glGalician
Observer (padrón de deseño)
heHebrew
תבנית צופה
huHungarian
Megfigyelő programtervezési minta
itItalian
Observer pattern
jaJapanese
Observer パターン
koKorean
옵서버 패턴
nlDutch
Observer (ontwerppatroon)
plPolish
Obserwator (wzorzec projektowy)
ptPortuguese
Observer
ruRussian
Наблюдатель (шаблон проектирования)
svSwedish
Observatör (designmönster)
thThai
แบบแผนผู้สังเกต
ukUkrainian
Спостерігач (шаблон проєктування)
zhChinese
观察者模式

Popularity rank trends

Best Rank English:
#22900
04.2015
Global:
#29885
04.2015

AI rank trends

Best Rank English:
#17007
03.2003
Global:
#17864
03.2009

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Observer pattern from Wikipedia articles about Software design pattern, Entity component system, Model–view–controller, Design Patterns and Publish–subscribe pattern. Whereas reading the article about Observer pattern people most often go to Wikipedia articles on Design Patterns, Publish–subscribe pattern, Software design pattern, Event-driven programming and Mediator pattern.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

About WikiRank

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information