# http://purl.org/xtypes/
Archivo Ontology Snapshot for http://purl.org/xtypes/

## DBpedia Archivo Ontology Snapshot

| Attribute |  Value |
| - | - |
| Ontology URI | <http://purl.org/xtypes/>
| Archivo Ontology Factsheet| [Link](http://archivo.dbpedia.org/info?o=http://purl.org/xtypes/)
| Snapshot File URL | <http://graphite.ecs.soton.ac.uk/xtypes/>
| Snapshot OWL Version IRI | <None>
| Snapshot Time | 2020-12-09 18:10:27

The [DBpedia Archivo Databus agent](https://databus.dbpedia.org/ontologies) generates only basic, static documentation for the archived snapshots of the ontologies.

## Ontology Metadata

DBpedia Archivo extracts metadata from the ontology for well known properties (e.g. dct:description). This subsection shows the content of every property individually using a separate heading.

### dct:description

This namespace provides identifiers for many common formats and encodings, and also for documents in that format and for (RDF) literals containing fragments of these formats. 

The Format-XXX and Encoding-XXX classes are intended for use with dcterms:format or similar predicates.

The Document-XXX and DocumentEncoded-XXX classes are intended for use with rdf:type to indicate the format and character encoding of the Document available at a URL.

The Fragment-XXX classes are intended for use as the datatype of literals in RDF. 

In some cases you might use Fragment-XXX as the type of a URL to indicate the URL resolves to a fragment, not a valid document. You might also use Document-XXX as a datatype if you had an entire valid document in a literal for some whacky reason.

Sub-versions of formats, document types and fragments: If you want to specifically indicate a version of a document, fragment or format, you can refer to it in the form Fragment-HTML-4.1 - this will resolve to an RDF class telling you it's version 4.1 of Fragment-HTML.

If you resolve Fragment-MyCrazyFormat that will resolve to a fragment class, and a format class. Use at your own risk. 

Motivation: This was actually just created due to the lack of a good datatype to indicate that a literal is a fragment of HTML rather than plain text. We brainstromed a list of useful formats and got the encodings from wikipedia, feedback welcome.

'blessing' new formats or encodings: If there's a format or encoding which really should be in the main list, and not 'unstable' tell me why at cjg@ecs.soton.ac.uk

This Ontology is public domain in the hope it will be useful by Christopher Gutteridge, University of Southampton, 2012.

 + ## All DBpedia Archivo ontologies from purl.org domain

Each artifact in this group deals as the archive for snapshots of one ontology of the [DBpedia Archivo](https://databus.dbpedia.org/ontologies) -  A Web-Scale Interface for Ontology Archiving under Consumer-oriented Aspects. Find out more at [http://archivo.dbpedia.org](http://archivo.dbpedia.org). The description for the individual files in the artifact can be found [here](http://dev.dbpedia.org/DBpedia_Archvio#files).