Date: Thu, 7 Jun 2007 12:23:15 +0200
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The PhpWiki:SemanticWeb implementation follows closely the [semediawiki
| http://ontoworld.org/wiki/Semantic_MediaWiki] implementation. It features:

* Annotation of article-article-links by means of configurable relations (link-types).
* Annotation of articles with simple data-values that are assigned to configurable attributes.
* Support for using physical units of measurement in all numerical attributes, without need 
  for prior configuration.

The annotation data will be combined with annotations from the current
category system to generate standard-compliant OWL/RDF output, which
can be fully processed with tools that support OWL DL or OWL Lite, but
which can also be treated in a meaningful way by software that
supports RDF, RDFS or XML.

! Relations

Relations (link-types) are defined as link with the following markup
syntax:
<verbatim>
  relation::pagename
</verbatim>

! Attributes

Attributes are defined as link with the following markup syntax:

<verbatim>
  attribute:=value
</verbatim>

Attributes and relations refer only to the current page - the
current page is the subject, the relation the predicate, the linked page the
object in a RDF triple. Relations always refer to another page - they
must not exist. Attributes not, since they are numeric only.

With the SemanticSearch feature you can query online simple and
complex facts.

You can import and export _lists of facts or queries_, as format rdf,
rdfs, owl.

! Example

<em>Sample taken from http://ontoworld.org/wiki/San_Diego, see also
[San Diego] </em>

<verbatim>
San Diego [is_a::city] located in the southwestern corner of
[California|located_in::California], the extreme southwestern corner of the
[United States|country::United States]. It is the county seat of San Diego
County. As of the 2000 census, the city had a total population of
[1,223,400|population:=1,223,400]; as of 2005, the California Department of
Finance estimated the city to have 1,305,736 residents. The city is the
second-largest in California and the seventh-largest in the United States and is
noted for its temperate climate and many beaches.

According to the United States Census Bureau, the city has a total
area of [963.6 km˛|area:=963.6 km^2] (372.0 mi˛). 840.0 km˛ (324.3
mi˛) of it is land and 123.5 km˛ (47.7 mi˛) of it is water.
The total area is 12.82% water.

Most notably, San Diego is the location of the 2005 International
Symposium on Wikis 2005, and the San Diego Zoo, and the San Diego
Chargers.

<?plugin SemanticRelations ?>
</verbatim>

! See Also

See PhpWiki:SemanticWeb, 
SemanticRelations, ListRelations, SemanticSearch, SemanticSearchAdvanced,
Help:SemanticRelationsPlugin, Help:SemanticSearchPlugin, 
PhpWiki:ImportRdf, PhpWiki:ImportOwl, PhpWiki::ExportRdf, PhpWiki::ExportRdfs, PhpWiki::ExportOwl

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PhpWikiDocumentation