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Nepomuk Annotation Ontology (NAO)

Nepomuk Annotation Ontology (NAO) — Tags, ratings and other common annotations to all classes

Synopsis

@prefix nao: <http://tracker.api.gnome.org/ontology/v3/nao#>

Classes

Tag

Additional Properties

deprecated, hasTag, identifier, isRelated, lastModified, numericRating

Class Details

Tag

Description

Represents a generic tag

Notify iconThis class emits notifications about changes, and can be monitored using TrackerNotifier.

Class hierarchy

    rdfs:Resource 
        nao:Tag 

Properties

Name Type Notes Description

description

string This property extends rdfs:commentThis property is full-text-indexed, and can be looked up through fts:match

In the context of the social semantic desktop the textual annotation provided via rdfs:comment is meant for technical users, the textual annotation here is aimed at average users and is meant to be used to define custom descriptions of resources on the desktop

prefLabel

string This property is full-text-indexed, and can be looked up through fts:match

A preferred label for a resource

Property Details

Additional properties for rdfs:Resource

Description

Properties this ontology defines which can describe rdfs:Resource resources.

Properties

Name Type Notes Description

deprecated

boolean  

If this property is assigned, the subject class, property, or resource, is deprecated and should not be used in production systems any longer. It may be removed without further notice.

hasTag

Resource This property can have multiple values.

Defines an existing tag for a resource

identifier

string  

Defines a generic identifier for a resource

isRelated

Resource This property can have multiple values.

This property defines a symmetric relation between any two resources. In order for this property to be used legally, the relationship must be symmetric.

lastModified

dateTime This property extends dc:date

last modification date

numericRating

double  

Annotation for a resource in the form of a numeric rating (float value), allowed values are between 1 and 10 whereas 0 is interpreted as not set

Credits and Copyright

Authors:
  • Siegfried Handschuh, DERI/NUIG, <siegfried.handschuh@deri.org>
  • Ludger van Elst, DFKI, <elst@dfki.uni-kl.de>
  • Michael Sintek, DFKI, <michael.sintek@dfki.de>
  • Simon Scerri, DERI/NUIG, <simon.scerri@deri.org>
Editors:
  • Tracker developers (translation into turtle)
  • Simon Scerri, DERI/NUIG, <simon.scerri@deri.org>
Contributors:
  • Antoni Mylka, DFKI, <antoni.mylka@dfki.de>
  • Julien Gaugaz, L3S, <gaugaz@l3s.de>
  • Knud Möller, DERI/NUIG, <knud.moeller@deri.org>
  • Sebastian Trüg, EDGE-IT, <strueg@mandriva.com>
  • Max Völkel, FZI, <voelkel@fzi.de>
  • Leo Sauermann, DFKI, <leo.sauermann@dfki.de>
Upstream:

Upstream version

ChangeLog:

Tracker changes

Copyright:

© 2007 NEPOMUK Consortium®. This work is made available under the terms of NEPOMUK software license