Digital.Me LivePost Ontology

OSCAF Recommendation 28.08.2013

Latest Version:: http://www.semanticdesktop.org/ontologies/2011/10/05/dlpo

This Version:: This file refers to the Revision 1.0 of DLPO. Minor changes may be implemented in future revisions. With each new revision, the documentation and all serializations of the ontology will be updated. The URI identifying this version (but not the namespace) is http://www.semanticdesktop.org/ontologies/2011/10/05/dlpo/v1.0/

Authors:: Simon Scerri, DERI, scerrisimon@gmail.com; Keith Cortis, DERI, keith.cortis@deri.org

Contributors:: Ismael Rivera, DERI, ismael.rivera@deri.org

Editor:: Simon Scerri, DERI, scerrisimon@gmail.com


Ontology:: XML/RDFS Serialization: DLPO (Data Graph Only); XML/RDFS Serialization: DLPO (Metadata Graph Only); TriG Serialization: DLPO (Graph Set)

Abstract

These specifications introduce the DLPO Ontology and its vocabulary.

Status of this document

This document arose from the work done in the di.me project.

Ontology Visualisation

Ontology description

The DLPO ontology represents the sharing of dynamic, �instant� personal information such as opinions, comments, presence-related information and other multimedia items, as commonly performed across social networks. It represents anything from status messages, to their replies, endorsment (liking, starring), etc. Live Posts refer to online microposts, which can be decomposed in various sub-posts (e.g. posting a video, with a status message, while checking-in at a place and tagging nearby people in the status message). A live post is a subclass of nie:InformationElement and also sioc:Post from the W3C SIOC Member Submission. More information can be found in a related publication by SCERRI.

References

[SCERRI]

[SIOC]: SIOC Ontology: Related Ontologies and RDF Vocabularies. Uldis Boj?rs et. al., W3C Member Submission, (2007).; http://www.w3.org/Submission/sioc-related/.

Ontology Classes Description

ActivityPost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, dlpo:PresencePost, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of information related to a user's detected or proclaimed activity, as defined by a set of instances of dpo:Activity.

AudioPost

Superclasses	nie:InformationElement, dlpo:LivePost, dlpo:MultimediaPost, sioc:Post, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of audio file, or a link to online media such as podcasts, music, etc., as defined by instances of nfo:Audio.

AvailabilityPost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, dlpo:PresencePost, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of information related to a user's detected or proclaimed availability, as defined by a set of instances of dpo:Availability.

BlogPost

Superclasses	sioct:BlogPost, nie:InformationElement, dlpo:LivePost, sioc:Post, rdfs:Resource, dlpo:WebDocumentPost
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents a livepost referring to an online note, as defined by instances of nfo:RemoteDataObject, or known instances of pimo:Blogpost.

Checkin

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, dlpo:PresencePost, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of information related to a user's detected or proclaimed physical location, as defined by an established instance of pimo:Location.

Comment

Superclasses	sioct:Comment, nie:InformationElement, dlpo:LivePost, dlpo:Message, sioc:Post, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents comments shared by a user or a contact, in reply to existing liveposts.

EventPost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, dlpo:PresencePost, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of information related to a user's detected or proclaimed attendance in an ongoing event, as defined by an established instance of pimo:Event.

ImagePost

Superclasses	nie:InformationElement, dlpo:LivePost, dlpo:MultimediaPost, sioc:Post, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of an image file, or a link to an online image, as defined by instances of nfo:Image.

LivePost

Superclasses	nie:InformationElement, sioc:Post, rdfs:Resource
Subclasses	dlpo:ActivityPost, dlpo:AudioPost, dlpo:AvailabilityPost, dlpo:BlogPost, dlpo:Checkin, dlpo:Comment, dlpo:EventPost, dlpo:ImagePost, dlpo:Message, dlpo:MultimediaPost, dlpo:NotePost, dlpo:PresencePost, dlpo:Status, dlpo:VideoPost, dlpo:WebDocumentPost
In domain of:	dlpo:definingResource, dlpo:hasReply, dlpo:hasRepost, dlpo:isComposedOf, dlpo:relatedResource, dlpo:replyOf, dlpo:repostOf, dlpo:textualContent, dlpo:timestamp
In range of:	dlpo:hasReply, dlpo:hasRepost, dlpo:isComposedOf, dlpo:replyOf, dlpo:repostOf
Description	A generic representation of personal information intended for instant online sharing, typically over social networks. Extended through various subclasses. When an item is shared as a livepost, it can be managed as a separate new entity. For this purpose, all LivePost instances also become instances of nie:InformationElements.

Message

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, rdfs:Resource
Subclasses	dlpo:Comment, dlpo:Status
In domain of:	--
In range of:	--
Description	A livepost consisting of a textual message posted by either a user, or a contact, as defined by further subclasses.

MultimediaPost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, rdfs:Resource
Subclasses	dlpo:AudioPost, dlpo:ImagePost, dlpo:VideoPost
In domain of:	--
In range of:	--
Description	A livepost consisting of a multimedia item, including links to online items. Further subclasses represent video, audio or image posts, as defined by various instances of the NFO (File Ontology).

NotePost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, rdfs:Resource, dlpo:WebDocumentPost
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents a livepost referring to an online note, as defined by instances of nfo:RemoteDataObject, or known instances of pimo:Note.

PresencePost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, rdfs:Resource
Subclasses	dlpo:ActivityPost, dlpo:AvailabilityPost, dlpo:Checkin, dlpo:EventPost
In domain of:	--
In range of:	--
Description	A livepost consisting of information related to a user's presence, as defined by a set of DPO (Presence Ontology) instances.

Status

Superclasses	nie:InformationElement, dlpo:LivePost, dlpo:Message, sioc:Post, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents a status message, tweet, etc. shared by a user.

VideoPost

Superclasses	nie:InformationElement, dlpo:LivePost, dlpo:MultimediaPost, sioc:Post, rdfs:Resource
Subclasses	--
In domain of:	--
In range of:	--
Description	Represents the live posting of a video file, or a link to an online media such as podcasts, videos, etc., as defined by instances of nfo:Video.

WebDocumentPost

Superclasses	nie:InformationElement, dlpo:LivePost, sioc:Post, rdfs:Resource
Subclasses	dlpo:BlogPost, dlpo:NotePost
In domain of:	--
In range of:	--
Description	A livepost consisting of links to remote web documents, as defined by further subclasses.

Ontology Properties Description

definingResource

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	rdfs:Resource
Superproperties	nao:annotation, nao:hasSuperResource, nao:isRelated
Subproperties	--
Description	As many resources that are shared as liveposts exist beforehand, this property (a sub-property of nao:hasSuperResource) is provided to make this link explicit. Therefore a livepost (videopost, eventpost, availabilitypost, etc.) can be linked to the representation of the original resource being shared online (video, event, availability, etc.)

hasReply

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	dlpo:LivePost
Inverse property	dlpo:replyOf
Superproperties	sioc:has\_reply
Subproperties	--
Description	Links a livepost to its reply or response, also in the form of a livepost. This property is transitive, and is the inverse of dlpo:replyOf.

hasRepost

Type	rdf:Property, rdfs:Resource, nrl:TransitiveProperty
Domain	dlpo:LivePost
Range	dlpo:LivePost
Inverse property	dlpo:repostOf
Superproperties	--
Subproperties	--
Description	Links to the repost(s) of a livepost. This property is transitive, and is the inverse of dlpo:repostOf.

isComposedOf

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	dlpo:LivePost
Superproperties	nao:annotation, nao:hasSubResource, nao:isRelated
Subproperties	--
Description	One online post can simultaneously consist of various types of livepost subclasses as defined by DLPO. These are semantically related to the parent post through this property.

relatedResource

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	rdfs:Resource
Superproperties	nao:annotation, nao:isRelated
Subproperties	--
Description	This property (a sub-property of nao:isRelated) is used to refer to resources that are related to the livepost, as opposed to being the resource being shared (refer to dlpo:definingResource). Typical uses for this property is to represent items (e.g. people) tagged to a livepost.

replyOf

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	dlpo:LivePost
Inverse property	dlpo:hasReply
Maximal cardinality	1
Superproperties	sioc:reply\_of
Subproperties	--
Description	Links an in-reply-to livepost to the original livepost. This property is transitive, and is the inverse of dlpo:hasReply.

repostOf

Type	rdf:Property, rdfs:Resource, nrl:TransitiveProperty
Domain	dlpo:LivePost
Range	dlpo:LivePost
Inverse property	dlpo:hasRepost
Maximal cardinality	1
Superproperties	--
Subproperties	--
Description	Links to the original of a reposted livepost. This property is transitive, and is the inverse of dlpo:hasRepost.

textualContent

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	xsd:string
Maximal cardinality	1
Superproperties	--
Subproperties	--
Description	The textual content of a Livepost, as it appears an online stream.

timestamp

Type	rdf:Property, rdfs:Resource
Domain	dlpo:LivePost
Range	xsd:datetime
Cardinality	1
Superproperties	--
Subproperties	--
Description	Records the time and date at which a Livepost is published at.