Help:Classification in categories

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Help > Classification in categories
Over-categorization with double entries shuold be avoided, as all media appear in both categories.

Classification in general Back to Table of Contents

Classification in categories is essential to find quickly articles or media types or just for a classification. [[Category:Flora]] 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.: [[:Category:Flora]].

Sort Sorting Back to Table of Contents

In general each category or page is sorted by it’s name, but it's also possible to alter this behaviour:

Wiki-Page Abies alba


{{DEFAULTSORT:alba, Abies}}
[[Category:Abies]]
[[Category:Conifers]]
[[Category:Flora]]
[[Category:Descriptions of species]]

Now this category will be sorted differently as given and not like “Abies alba”. In a similar way you can alter the way of sorting of categorised words themselves:

Example Tips/hints/examples 
On a page named “Resource Subtype” you can sort it to “Subtype” (i.e. letter S) by adding the optional sorting word after the vertical bar “|”: [[Category:Metadata | Subtype]].

Nesting Back to Table of Contents

It's also possible to nest categories in the following way and create sub-categories:

Page with


[[Category:A sub-category]]
Sub-category's page with


[[Category:Super-category]]
follow link of category→

Check out Back to Table of Contents

To check unused categories the following links might be very helpful:

Classification using template “Metadata” Back to Table of Contents

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:

{{Metadata
| Type=StillImage
| Title=Wanzenflügel mit Legende
| Description = de: Ein Wanzenflügel für Erklärungen in Bestimmungsschlüsseln. en: wing of an Heteroptera for explanations/as legend in determination guides
| Scientific Names = Heteroptera
| Common Names = Heteroptera (en), Wanzen (de), Ploštice (cz), Heteropter (fr), Luteet (fi)
| Metadata Language=de
| Language = de, en
| Creators= [[User:GiselaWeber]]
| Subject Category = Insecta, Heteroptera
| General Keywords = Morphological details, Legends, Schematic drawings, Wings (Insecta)
}}

…which produces:

Documentation of this template
Wanzenflügel mit Legende
de: Ein Wanzenflügel für Erklärungen in Bestimmungsschlüsseln. en: wing of an Heteroptera for explanations/as legend in determination guides

Creators: User:GiselaWeber
Copyright Statement: (Required information missing!)
License Statement: (Required information missing!)
World Region: (Required information missing!)
Country Codes: (Required information missing!)
Subject Category: Insecta • Heteroptera
General Keywords: Morphological details • Legends • Schematic drawings • Wings (Insecta)
Scientific Names: Heteroptera
Common Names: Heteroptera (en), Wanzen (de), Ploštice (cz), Heteropter (fr), Luteet (fi)
TypeStillImage
Language Deutsch (de)
Resource ID(Resource IDs are urgently requested!)
URIs:
Please add the “Collection Page”. Please add the “Provider Page”.

“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 documentation’s page.