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| Keep an eye out for extra help on pages such as your User page. | | Keep an eye out for extra help on pages such as your User page. |
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| == Semantic wiki facilities ==
| | [[Structured wiki help]] |
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| Semantic Mediawiki (SMW) add database-like features to the free form functionality of wikis. Annotations, properties, templates, forms and queries can be used to more consistently create content, suitable for re-use.
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| An annotation is a simple discrete markup of information, with a corresponding property, which describes the data type. Annotations can appear anywhere in text, except in values of other properties. They look like this: <nowiki>[[birthday::November 25, 2009]]</nowiki>.
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| Once annotations are entered, they can be reused in queries and views, like this one:
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| <nowiki>{{ #ask: [[birthday::+]] | format=timeline}}</nowiki>
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| Which means ask for all pages with birthdays, and display them in timeline format, including links to page names ({{PAGENAME}} in this case).
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| {{ #set: birthday=November 25, 2009}}
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| {{ #ask: [[birthday::+]] |?birthday | format=timeline}}
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| Other formats include [[Facilities|graphs]], maps, facet browsers, tables and charts. The property type is often a page, so the annotation provides a link type. This corresponds to [http://en.wikipedia.org/wiki/Resource_Description_Framework RDF] triples - object (the page), predicate (the link), subject (the destination link). SMW has RDF features to support interaction with other software.
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| Properties are commonly assigned in templates and used with forms to provide consistent data using fields and categories. [[Special:CreateClass]] provides functionality to create a template and form in one step.
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| === See also ===
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| * [[How to annotate]]
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| * [http://wiki.zooid.org/wiki/Semantic_Mediawiki_workshop A wiki & semantic mediawiki tutorial]
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| [[Category: Wiki documentation]] | | [[Category: Wiki documentation]] |