View source for Help:Classification in categories

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{{DEFAULTSORT:Classification in categories}}

__TOC__

== Classification in general {{Back to TOC}} ==

Classification in categories is essential to find quickly articles or media types or just for a classification. <code><nowiki>[[Category:Flora]]</nowiki></code> creates a category. But it has to be mentioned that it will not be found by a standard search, because this page isn't esteablished yet really. To do so you have to click the red link from the category's name and add a description or purpose of this particular category. An added colon, however, creates only a link to the category, e.g.: <code><nowiki>[[:Category:Flora]]</nowiki></code>.

In general each category is sorted by category's name, but it's also possible to alter this behaviour:
{| style="border:1px black solid;padding:10px;"
|-
|<tt> Wiki-Page Abies alba<br />
…<br />
<nowiki>{{DEFAULTSORT:alba, Abies}}</nowiki><br />
<nowiki>[[Category:Abies]]</nowiki><br />
<nowiki>[[Category:Conifers]]</nowiki><br />
<nowiki>[[Category:Flora]]</nowiki><br />
<nowiki>[[Category:Descriptions of species]]</nowiki><br />
</tt>
|}
Now this category will be sorted differently as given and not like “''Abies alba''”.

It's also possible to nest categories in the following way and create sub-categories:
{| border="0" cellpadding="10"
|-
| rowspan=2 style="border:1px solid;" | Page with <br/><br/><br/><tt><nowiki>[[Category:A sub-category]]</nowiki></tt>
| style="border-right:1px dashed;" |
| style="border-top:1px dashed;" |
| rowspan=2 style="border:1px solid;" | Sub-category's page with <br/><br/><br/><tt><nowiki>[[Category:Super-category]]</nowiki></tt>
|-
| style="border-bottom:1px dashed;border-right:1px dashed;vertical-align:bottom;" | follow link of category→
|}

To check unused categories the following links might be very helpful:
* [[{{int:pagecategorieslink}}|{{lc:{{int:pagecategories}}}}]]
* [[Special:UncategorizedFiles|{{lc:{{int:uncategorizedimages}}}}]]
* [[Special:UncategorizedCategories|{{lc:{{int:uncategorizedcategories}}}}]]
* [[Special:UncategorizedTemplates|{{lc:{{int:uncategorizedtemplates}}}}]]


== Classification using template “Metadata” {{Back to TOC}} ==

For media data a special template was developed that handles categorisation as well. Here is an example for a German description of a Heteropteran wing description:
<pre>{{Metadata
| Type=StillImage
| Title=Wanzenflügel mit Legende
| Caption = Ein Wanzenflügel für Erklärungen in Bestimmungsschlüsseln.
| Scientific Names = Heteroptera
| Common Names = Heteroptera (en), Wanzen (de), Ploštice (cz), Heteropter (fr), Luteet (fi)
| Metadata Language=de
| Language = de
| Creator= [[User:GiselaWeber]]
| Subject Category = Insecta, Heteroptera
| General Keywords = Morphological details, Legends, Schematic drawings, Wings (Insecta)
}}</pre>
…which produces:
{{Metadata
| Type=StillImage
| Title=Wanzenflügel mit Legende
| Caption = Ein Wanzenflügel für Erklärungen in Bestimmungsschlüsseln.
| Scientific Names = Heteroptera
| Common Names = Heteroptera (en), Wanzen (de), Ploštice (cz), Heteropter (fr), Luteet (fi)
| Metadata Language=de
| Language = de
| Creator= [[User:GiselaWeber]]
| Subject Category = Insecta, Heteroptera
| General Keywords = Morphological details, Legends, Schematic drawings, Wings (Insecta)
}}

“Subject Category” and “General Keywords” are hereby automatically categorised. And of course you can provide less or more information, but the much information you can give the better it is. For details and parameters of this template see on [[Template:Metadata/doc|documentation’s page]].

[[Category:Classification]]