About: defines role

This page provides a structured representation (serialized as HTML+RDFa) of the description of the entity denoted ("referred to") by the hyperlink that anchors the About: <Entity Label> text at the top.

The data is presented here in the form of a collection of Entity->Attribute->Value (EAV) or Subject->Predicate->Object (SPO) relations.

In conformance with core Web Architecture, the same description data may also be retrieved in a variety of other negotiable serialization formats, which currently include CSV, HTML+Microdata, (X)HTML+RDFa, N-Triples, Turtle, N3, RDF/JSON, JSON-LD, RDF/XML, Atom, and CXML.

Why is this page important?

This page and its neighbors provide 5-Star Linked Data URIs (Web Super Keys) for HTTP-accessible data. These URIs are powerful starting points for serendipitous data discovery using the Web's "follow your nose" pattern, as well as a key ingredient for SPARQL queries over HTTP, ODBC, JDBC, ADO.NET, OLE-DB, or XMLA connections.

A single link from this page can be the seed of a powerful Web traversal, en route to discovery and exploitation of unimagined insights, using existing tools such as browsers, spreadsheets, business intelligence and analytics packages, basic report writers, presentation generators, project management packages, and many others.

How can I discover more structured data like this?

A variety of discovery pointers are available to users and user agents (software programs) that include:

<link /> relations embedded within the <head /> section of each description page
"Link:" response headers included as part of HTTP response metadata.

Can I expose my own Web resources this way?

Yes! Simply include entries, based on the example below, in the <head/> section of your (X)HTML page, whether static or dynamically generated --

<link rel="related"
    title="My Data in Linked Data form"
    href="http://linkeddata.uriburner.com/about/id/<scheme-part-of-url>/<host-part-of-url>/<path-part-of-url>"
    />

The scheme part is the first bit of a URI, up to but not including the first colon (":"). The host part includes the port, if any, and is found between the double solidus ("//") following the first colon, and the first solidus ("/") thereafter. The path part is everything thereafter (possibly including a query part or fragment identifier part).

For example, if your original page were at --

http://en.wikipedia.org/wiki/Linked_Data

-- the scheme part is "http", the host part is "en.wikipedia.org", and the path part is "wiki/Linked_Data". You could therefore provide access to a Linked Data graph rendition by including a <head/> entry like this --

<link
    rel="related"
    title="Linked data - Wikipedia, the free encyclopedia - in Linked Data form"
    href="http://linkeddata.uriburner.com/about/id/http/en.wikipedia.org/wiki/Linked_Data"
    />

Additional Information

URIBurner.com -- a live service that produces pages like this
OpenLink Data Explorer (ODE) -- a browser plug-in that enables you to browse and bookmark Linked Data pages via additions to the browser menus, both main and contextual
- ODE usage examples

Sponging disallowed (Read-only view)

A relation between a description and a role, e.g. the recipe for a cake defines the role 'ingredient'.

% meta-cartridges called:

Meta-cartridge [execution time]:

Subject of Relation
Object of Relation

Property	Value
type	ObjectPropertyhttp://www.w3.org/2002/07/owl#ObjectProperty
subPropertyOf	defineshttp://www.ontologydesignpatterns.org/ont/dul/DUL.owl#defines
inverseOf	is role defined inhttp://www.ontologydesignpatterns.org/ont/dul/DUL.owl#isRoleDefinedIn
comment	A relation between a description and a role, e.g. the recipe for a cake defines the role 'ingredient'.
domain	Descriptionhttp://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Description
isDefinedBy	DOLCE+DnS Ultralitehttp://www.ontologydesignpatterns.org/ont/dul/DUL.owl
label	defines role (en) definisce il ruolo (it)
range	Rolehttp://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Role
described by	proxy:entity/http/www.ontologydesignpatterns.org/ont/dul/DUL.owlhttp://ods-qa.openlinksw.com:8896/about/id/entity/http/www.ontologydesignpatterns.org/ont/dul/DUL.owl

Property	Value
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nodeID://b839722nodeID://b839722 nodeID://b839731nodeID://b839731 nodeID://b839754nodeID://b839754 nodeID://b839815nodeID://b839815 nodeID://b839824nodeID://b839824 nodeID://b839847nodeID://b839847 nodeID://b846070nodeID://b846070 nodeID://b846079nodeID://b846079 nodeID://b846102nodeID://b846102 nodeID://b846163nodeID://b846163 nodeID://b846172nodeID://b846172 nodeID://b846195nodeID://b846195 nodeID://b846256nodeID://b846256 nodeID://b846265nodeID://b846265 nodeID://b846288nodeID://b846288 nodeID://b846349nodeID://b846349 nodeID://b846358nodeID://b846358 nodeID://b846381nodeID://b846381 nodeID://b847182nodeID://b847182 nodeID://b847191nodeID://b847191 nodeID://b847214nodeID://b847214 nodeID://b847275nodeID://b847275 nodeID://b847284nodeID://b847284 nodeID://b847307nodeID://b847307 nodeID://b847368nodeID://b847368 nodeID://b847377nodeID://b847377 nodeID://b847400nodeID://b847400 nodeID://b847461nodeID://b847461 nodeID://b847470nodeID://b847470 nodeID://b847493nodeID://b847493 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topic	DOLCE+DnS Ultralitehttp://www.ontologydesignpatterns.org/ont/dul/DUL.owl
about	proxy:entity/http/www.ontologydesignpatterns.org/ont/dul/DUL.owlhttp://ods-qa.openlinksw.com:8896/about/id/entity/http/www.ontologydesignpatterns.org/ont/dul/DUL.owl