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Welcome > Help:Contents > Categories

Just working on the English translation... want to help ??..



Categories are being used to group together thematically related articles. With them you are creating WIKI- Summaries called "Category- Pages" where the individual articles are listed and linked to each other. It would be quite possible to create a Linklist manually, however with Categories this procedure is much simpler.

With this, the articles are grouped together with one or more categories and afterwards the article is automatically linked to the corresponding category.

You have to differentiate between articles, which you determine to be of the same kind and the Category-Page, which is supposed to list the articles including the corresponding links. For Example, you have to make a difference between

the Gloves and the drawer labeled "Gloves", where you put the Gloves in

You also can create Categories within Categories, which will show up in the corresponding Category as a Sub- Category linked to it.

With Categorizing you are able to create a path within the "WIKI-Jungle". Just like building a Super- Highway with intersections of smaller higways, which again have intersections with smaller roads and streets.
Another example: When traveling on a Interstate highway, you will see the signs for the next intersection or the next town, but NOT to every small street.
Therefore, in order to categorize articles properly, it will take some brainwork and could be sometimes quite difficult.


You do NOT create the Category- Page with a lot of sweat ;-), it's just the opposite:

The same kind of objects receive a identification mark that they belong to a certain Category. Therefore it is important to establish a proper category- name and the article will be assigned to that name and afterwards, whenever you open up this Category- Page your article is "just there" and every time you call up the list it will update itself automatically.

Im Quelltext des Artikels (oder auch einer Kategorie, die Unterkategorie sein soll) ist eine Kategorisierung in der Form [[Kategorie:Kategoriename]] anzugeben, wobei "Kategoriename" der Name der Kategorie ist.

Mehrere Kategorisierungen sind zeilenweise untereinander anzubringen.

Die Kategorisierung geschieht am Ende des Quelltextes, jedoch vor einem evtl. Sprachlink (Inter-Wiki-Link).


Die Familiennamen-Seiten sind alle mit "Familienname" kategorisiert, zB. diese:

Im Quelltext steht nämlich am Ende:

Man sieht dies auf der Seite, ganz unten steht in einem Rahmen:
Eingeordnet unter: Familienname

Aber das entscheidende: Die Seite ist automatisch aufgeführt auf der Kategorieseite:

Man kann der Kategorieseite auch noch weiteren Quelltext spendieren, in diesem Fall sind das die 3 erläuternden Sätze, die vor der Auflistung angezeigt werden ("Die Artikel dieser Kategorie erklären ...").

Lexikalische Einordnung

Möglicherweise entspricht der Name des zu kategorisierenden Artikels oder der zu kategorisierenden Kategorie (als Unterkategorie) nicht der gewünschten Einsortierung.

Auf die Einsortierung kann aber durch folgende Syntax Einfluß genommen werden:

[[Kategorie:Kategoriename|Sortierbezeichnung]], wobei die "Sortierbezeichnung" gemäß der gewünschten Einsortierung zu wählen ist. Die Sortierbezeichnung wird nirgendwo angezeigt, sie dient lediglich der Einordnung.

  • Der Artikel sei "Kreis Heilbronn".
    Man wünscht aber in der Kategorie "Kreis in Baden-Württemberg" keine Einordung unter dem Buchstaben K, sondern eine Einordung, die dem Wort Heilbronn entspricht, somit unter H.
    Die Syntax wäre dann: [[Kategorie:Kreis in Baden-Württemberg|Heilbronn]].
    Der Artikel "Kreis Heilbronn" erscheint dann gemäß der lexikalischen Einordnung von Heilbronn, also z.B. nach Heiland, aber vor Heilwasser.

Es ist daher nicht erforderlich, bereits bei der Wahl des Namens eines Artikels oder einer Kategorie auf eine evtl. Einsortierung Rücksicht zu nehmen.

Links auf eine Kategorieseite

Ein Link auf eine Kategorieseite erfolgt mit einem weiteren vorangestellten Doppelpunkt:
wobei "Kategoriename" der Name der Kategorie ist.

Auch hier kann der Anzeigetext des Linkes verändert werden:
wobei "Kategoriename" der Name der Kategorie und "Anzeigetext" der angezeigt Textes des Links ist.



Eine Kategorie sollte prinzipiell im Singular benannt werden.

Der Grund hierfür ist, dass die Software die Bezeichnung der Kategorie entweder "so wie sie ist" (z.B. bei der Auflistung von Unterkategorien) oder in der Form "Kategorie:Kategoriename" (zB. in der Überschrift der Kategorie) verwendet.

Die Software verwendet jedoch nicht die Genitivform, welche bei einer Plural-Benennung erforderlich wäre.

Um dies zu illustieren:

München ist eine Stadt, gehört z.B. in eine Kategorie "Stadt".
Man kann auch sagen, München gehört in die Kategorie "der Städte", eine Sprachform, die von der Software allerdings nicht unterstützt wird.

Liste aller Kategorien

Eine Auflistung aller Kategorien findet man unter dieser Spezialseite: Auflistung aller Kategorien


Die Kategorie GenWiki ist die Hauptkategorie, diese enthält die Hauptthemen des GenWiki, eignet sich also als systematischen Einstiegspunkt in das GenWiki.

Siehe auch: Kategorisierung von regionalen Artikeln Template:Shortcut


  • Articles should be placed in the most specific categories possible. Categories should be more or equally as broad as the articles they contain; articles should be more or equally specific as the categories they are in.
  • Avoid abbreviations. Example: "World War II equipment", not "WW2 equipment".
  • Don't hard-code the category structure into names. Example: "Monarchs", not "People - Monarchs".
  • Choose category names that are able to stand alone, independent of the way a category is connected to other categories. Example: "Wikipedia policy precedents and examples", not "Precedents and examples" (a sub-category of "Wikipedia policies and guidelines").
  • Topical category names should be singular. Examples: "Biology", "Law".
  • Standard naming conventions apply; in particular, do not capitalise regular nouns.

Special conventions for lists

  • Category names for lists of items should be plural. Examples: "sports", "writers".
  • In instances where "List of Quuxen" is a simple alphabetical enumeration with no other information on it (unlike List of Twilight Zone episodes, for instance), it could be replaced with "Category:Quuxen".
  • Comprehensive lists, e.g. "List of all municipalities of Quuxen", annotated lists, and selective lists, e.g. "List of Quuxens that were Bazzed", should not be replaced with categories.
  • Names such Category:Lists of Quuexens should be used only for pages with lists, such "List of Quuexens that were sdfdd"
  • See: Category:Lists, Category:Lists that should be categories.

Note that there are a growing number of instances where both the singular category (listing topics relating to) and plural category (listing instances of) exist, for example, Category:Opera and Category:Operas. Be careful to choose the right one when categorizing articles.

Categories requirements and usage

User browsing

Categories (along with other features, like cross-references) should help users find the information they are looking for as quickly as possible, even if they don't know that it exists or what it's called.

Links to categories

You can create a link to a category page without adding the page to that category by using a colon before the word Category. Example: [[:Category:Automotive technologies]] appears as Category:Automotive technologies.

Redirected categories

Although it is possible to attempt to redirect categories by adding a line such as #REDIRECT [[Category:Automotive technologies]] to a category, it is not generally recommended because of limitations in the mediawiki software. Categories "redirected" in this way:

  1. will appear as a subcategory of the target category.
  2. do not prevent the addition of articles to the redirected category. Articles added to the "redirected" category do not show up as in the target category.

Until these issues are addressed (in future versions of the software), #REDIRECT should not be added to category pages.

Category sorting

Contrary to some expectations, text after a pipe ("|") in a category link is not used in place of the category text. Rather, this text is used as the sort key on the category page itself. However, again contrary to expectations, that sort text is not displayed.

For example, the Category:U.S. Interstate Highway system uses this property to sort secondary interstates by their primary. That is, the category link in the article for Interstate 190 is [[Category:U.S. Interstate Highway system|90-1]]. This causes "Interstate 190" to be listed right after "Interstate 90" and right before "Interstate 290" under the heading "9" in the category page.

This feature is very useful for categories in which:

Using this method to sort category entries is sometimes informally referred to as the pipe trick. However, this use of the pipe character is very different from the original Wikimedia pipe trick which allows one to easily hide parenthetical disambiguation in links.

It is possible to force an article or subcategory to the top of the list by using a non-alphanumeric character as the first after the pipe. For example, using [[Category:Ford| Ford Motor Company]] (note the space) or [[Category:Ford|*Ford Motor Company]] would force that article to be displayed before all the others. However, note that this practice is controversial.

Year categories

In categories which are years, such as Category:2004, special sorting guidelines apply:

  • Entries should generally be sorted by topic, so the article 2004 in film, for example, would contain the category reference [[Category:2004|Film]] while 2004 Canadian budget would contain the reference [[Category:2004|Canadian budget]]; List of religious leaders in 2004 would contain [[Category:2004|Religious leaders]].
  • The article about the year itself, 2004, should be sorted first among all articles by using [[Category:2004|*]].
  • Articles for individual months, such as October 2004, should be sorted chronologically in the first section on the category page, in this case using [[Category:2004|*2004-10]].

Interlanguage links to categories

Interlanguage links work just as they do for regular articles; [[de:Kategorie:Mathematik]] in Category:Mathematics connects to the German counterpart. This can be a useful way to compare coverage, or to look for articles in need of interlanguage links. Note that the different languages may have adopted different standards and practices for categorization, so a given category might not exist in other languages.


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