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The Metadata Registry ontology
Release: 2020-01-23
- Modified on: 2025-12-07
- This version:
- https://w3id.org/mdr/3.0.0
- Latest version:
- https://w3id.org/mdr#
- Previous version:
- http://semanticturkey.uniroma2.it/ns/mdr-2.0.1
- Revision:
- 3.0.0
- Issued on:
- 2025-12-07
- Authors:
- Armando stellato, Università degli Studi di Roma Tor Vergata
- Manuel Fiorelli, Università degli Studi di Roma Tor Vergata
- Imported Ontologies:
- dcat
- lime
- prov
- void
- Download serialization:
- License:
- Visualization:
- Cite as:
- Armando stellato, Manuel Fiorelli. The Metadata Registry ontology. Revision: 3.0.0. Retrieved from: https://w3id.org/mdr/3.0.0
- DOI:
published
Abstract
A metadata vocabulary that extends DCAT to support actionable metadata concerning the representation, accessibility, and nature of RDF datasets.Introduction back to ToC
A metadata vocabulary that extends DCAT to support actionable metadata concerning the representation, accessibility, and nature of RDF datasets.Namespace declarations
| art | <https://art.uniroma2.it/> |
| bibo | <http://purl.org/ontology/bibo/> |
| dcat | <http://www.w3.org/ns/dcat#> |
| dcterms | <http://purl.org/dc/terms/> |
| foaf | <http://xmlns.com/foaf/0.1/> |
| mdr | <https://w3id.org/mdr#> |
| org | <http://www.w3.org/ns/org#> |
| owl | <http://www.w3.org/2002/07/owl#> |
| prov | <http://www.w3.org/ns/prov#> |
| rdf | <http://www.w3.org/1999/02/22-rdf-syntax-ns#> |
| rdfs | <http://www.w3.org/2000/01/rdf-schema#> |
| vann | <http://purl.org/vocab/vann/> |
| void | <http://rdfs.org/ns/void#> |
| vs | <http://www.w3.org/2003/06/sw-vocab-status/ns#> |
| xml | <http://www.w3.org/XML/1998/namespace> |
| xsd | <http://www.w3.org/2001/XMLSchema#> |
MDR: Overview back to ToC
This ontology has the following classes and properties.Classes
- An RDF changeset
- An RDF linkset
- Changeset
- Changeset archetype
- Changeset realization
- Dataset archetype
- Dataset realization
- Deployment
- Dereferenciation system
- Distribution scheme
- Download from catalog
- Linkset
- Linkset archetype
- Linkset realization
- Mutable dataset realization
- RDF dataset
- SPARQL endpoint
- SPARQL endpoint limitation
Object Properties
- deployed distribution
- deployment
- dereferenciation system
- lod
- master
- prechange dataset
- source dataset
- SPARQL endpoint limitation
- target dataset
- target dataset
Data Properties
Annotation Properties
Named Individuals
MDR: Description back to ToC
A metadata vocabulary that extends DCAT to support actionable metadata concerning the representation, accessibility, and nature of RDF datasets.Cross-reference for MDR classes, object properties and data properties back to ToC
This section provides details for each class and property defined by MDR.Classes
- An RDF changeset
- An RDF linkset
- Changeset
- Changeset archetype
- Changeset realization
- Dataset archetype
- Dataset realization
- Deployment
- Dereferenciation system
- Distribution scheme
- Download from catalog
- Linkset
- Linkset archetype
- Linkset realization
- Mutable dataset realization
- RDF dataset
- SPARQL endpoint
- SPARQL endpoint limitation
An RDF changesetc back to ToC or Class ToC
IRI: https://w3id.org/mdr#RDFChangeset
A changeset embodied as a set of triples.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- RDF dataset c
- is in domain of
- prechange dataset op, target dataset op
An RDF linksetc back to ToC or Class ToC
IRI: https://w3id.org/mdr#RDFLinkset
A linkset embodied as a set of triples.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- RDF dataset c
- is in domain of
- source dataset op, target dataset op
Changesetc back to ToC or Class ToC
IRI: https://w3id.org/mdr#Changeset
A collection of changes between two datasets.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset c
- has sub-classes
- Changeset archetype c, Changeset realization c
Changeset archetypec back to ToC or Class ToC
IRI: https://w3id.org/mdr#ChangesetArchetype
An abstract changeset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Changeset c, Dataset archetype c
Changeset realizationc back to ToC or Class ToC
IRI: https://w3id.org/mdr#ChangesetRealization
A versioned changeset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Changeset c, Dataset realization c
- is in domain of
- prechange dataset op, target dataset op
Dataset archetypec back to ToC or Class ToC
IRI: https://w3id.org/mdr#DatasetArchetype
An abstract dataset, irrespective of its multiple, possibly mutable expressions.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset c
- has sub-classes
- Changeset archetype c, Linkset archetype c
- is in domain of
- URI space dp, dereferenciation system op, lod op, master op
Dataset realizationc back to ToC or Class ToC
IRI: https://w3id.org/mdr#DatasetRealization
A versioned dataset that grounds a dataset archetype in a concrete expression while remaining independent of details pertaining to its accessible distributions.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset c
- has sub-classes
- Changeset realization c, Linkset realization c, Mutable dataset realization c
- is in range of
- prechange dataset op, target dataset op
Deploymentc back to ToC or Class ToC
IRI: https://w3id.org/mdr#Deployment
A binding between services and distributions.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- is in domain of
- deployed distribution op, locator ap
- is in range of
- deployment op
Dereferenciation systemc back to ToC or Class ToC
IRI: https://w3id.org/mdr#DereferenciationSystem
A method to dereference the identifiers defined by a dataset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- is in range of
- dereferenciation system op
- has members
- standard dereferenciation ni, standard dereferenciation ni
Distribution schemec back to ToC or Class ToC
IRI: https://w3id.org/mdr#DistributionScheme
A documented methodology to produce an RDF dataset, differentiating it from other datasets gathered within the same dataset realization.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
Download from catalogc back to ToC or Class ToC
IRI: https://w3id.org/mdr#DownloadFromCatalog
The ingestion of a dataset from a catalog.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Activity c
- is in domain of
- data at origin dp, version at origin dp
Linksetc back to ToC or Class ToC
IRI: https://w3id.org/mdr#Linkset
A collection of correspondences (i.e., links) between two datasets.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset c
- has sub-classes
- Linkset archetype c, Linkset realization c
Linkset archetypec back to ToC or Class ToC
IRI: https://w3id.org/mdr#LinksetArchetype
An abstract linkset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset archetype c, Linkset c
Linkset realizationc back to ToC or Class ToC
IRI: https://w3id.org/mdr#LinksetRealization
A versioned linkset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset realization c, Linkset c
- is in domain of
- source dataset op, target dataset op
Mutable dataset realizationc back to ToC or Class ToC
IRI: https://w3id.org/mdr#MutableDatasetRealization
A dataset realization that can evolve over time instead of being one of the many immutable snapshots, each tied to a specific version.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset realization c
- is in range of
- lod op, master op
RDF datasetc back to ToC or Class ToC
IRI: https://w3id.org/mdr#RDFDataset
A set of triples, which can be published through different services and in different (serialization) formats.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Dataset c, Distribution c
- has sub-classes
- An RDF changeset c, An RDF linkset c
- is in range of
- prechange dataset op, target dataset op
SPARQL endpointc back to ToC or Class ToC
IRI: https://w3id.org/mdr#SPARQLEndpoint
A data service that conforms to the SPARQL Protocol over HTTP
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has super-classes
- Data service c
- is in domain of
- SPARQL endpoint limitation op
SPARQL endpoint limitationc back to ToC or Class ToC
IRI: https://w3id.org/mdr#SPARQLEndpointLimitation
A limitation of some SPARQL endpoint. This class is an extension point for recording and subsequently reacting in an application-specific manner to any perceived limitation of an endpoint. The focus is on limitations that cannot objectively be defined a-priori, as they rather depend on a number of boundary conditions, such as the task, the underlying access technology and even the specific queries run to perform the task. Such limitations can then be defined in application-specific ontologies reusing this vocabulary.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- is in range of
- SPARQL endpoint limitation op
Object Properties
- deployed distribution
- deployment
- dereferenciation system
- lod
- master
- prechange dataset
- source dataset
- SPARQL endpoint limitation
- target dataset
- target dataset
deployed distributionop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#deployedDistribution
It relates a deployment to the distribution that it binds to a data service.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Deployment c
- has range
- Distribution c
- is inverse of
- deployment op
deploymentop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#deployment
It relates a distribution to a deployment that describes its binding to a data service.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Distribution c
- has range
- Deployment c
- is inverse of
- deployed distribution op
dereferenciation systemop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#dereferenciationSystem
It relates a dataset archetype to a resource describing a method to dereference the identifiers defined by that dataset. Currently only two instances: mdr:standardDereferenciation and mdr:noDereferenciation are available, however this will be extended soon to account for versioning and other URI-transformation needs.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Dataset archetype c
- has range
- Dereferenciation system c
lodop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#lod
It relates a dataset archetype to its realization published as Linked Open Data (i.e., using resolvable URIs).
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Dataset archetype c
- has range
- Mutable dataset realization c
masterop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#master
It relates a dataset archetype to a development copy, usually hosted in editing applications.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Dataset archetype c
- has range
- Mutable dataset realization c
prechange datasetop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#prechangeDataset
It holds the the dataset before the changes described by a changeset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Changeset realization c or An RDF changeset c
- has range
- Dataset realization c or RDF dataset c
source datasetop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#sourceDataset
It holds the dataset containing the source resources of a linkset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Linkset realization c or An RDF linkset c
- has range
- Dataset c
SPARQL endpoint limitationop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#sparqlEndpointLimitation
It relates a SPARQL endpoint to a resource describing some limitation of that endpoint.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- SPARQL endpoint c
- has range
- SPARQL endpoint limitation c
target datasetop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#postchangeDataset
It holds the dataset containing the target resources of a linkset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Changeset realization c or An RDF changeset c
- has range
- Dataset realization c or RDF dataset c
target datasetop back to ToC or Object Property ToC
IRI: https://w3id.org/mdr#targetDataset
It holds the dataset containing the target resources of a linkset.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Linkset realization c or An RDF linkset c
- has range
- Dataset c
Data Properties
data at origindp back to ToC or Data Property ToC
IRI: https://w3id.org/mdr#dataAtOrigin
It holds the identifier of the specific distribution of a dataset version downloaded from a catalog.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Download from catalog c
- has range
- Literal
URI spacedp back to ToC or Data Property ToC
IRI: https://w3id.org/mdr#uriSpace
It holds the common URI prefix shared by resources defined in a dataset's concrete expressions.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Dataset archetype c
- has range
- string
version at origindp back to ToC or Data Property ToC
IRI: https://w3id.org/mdr#versionAtOrigin
It holds the version of the dataset downloaded from a catalog.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Download from catalog c
- has range
- Literal
Annotation Properties
datatype for datadump IDap back to ToC or Annotation Property ToC
IRI: https://w3id.org/mdr#datatypeForDatadumpID
It specifies the data type used for the identifiers of data dumps downloaded from a catalog.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has range
- Datatype
datatype for dataset abstraction IDap back to ToC or Annotation Property ToC
IRI: https://w3id.org/mdr#datatypeForDatasetAbstractionID
It specifies the data type used for the identifiers of dataset abstractions in a catalog.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has range
- Datatype
doiap back to ToC or Annotation Property ToC
IRI: http://purl.org/ontology/bibo/doi
issuedap back to ToC or Annotation Property ToC
IRI: http://purl.org/dc/terms/issued
locatorap back to ToC or Annotation Property ToC
IRI: https://w3id.org/mdr#locator
It holds a service-dependent description of the location of a given deployment within a data service.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- has domain
- Deployment c
rightsap back to ToC or Annotation Property ToC
IRI: http://purl.org/dc/terms/rights
statusap back to ToC or Annotation Property ToC
IRI: http://purl.org/ontology/bibo/status
Named Individuals
standard dereferenciationni back to ToC or Named Individual ToC
IRI: https://w3id.org/mdr#noDereferenciation
It indicates that identifiers in a URI space cannot be dereferenced.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- belongs to
- Dereferenciation system c
- has facts
- term status ap "stable"
standard dereferenciationni back to ToC or Named Individual ToC
IRI: https://w3id.org/mdr#standardDereferenciation
It uses the protocol implied by the IRI scheme to dereference the resource identifier. For example, it uses HTTP to retrieve a representation of a resource identified by an HTTP(S) IRI.
- Is defined by
- https://w3id.org/mdr
- Term status
- stable
- belongs to
- Dereferenciation system c
- has facts
- term status ap "stable"
Legend back to ToC
c: Classes
op: Object Properties
dp: Data Properties
ni: Named Individuals
op: Object Properties
dp: Data Properties
ni: Named Individuals
References back to ToC
Add your references here. It is recommended to have them as a list.null
Acknowledgments back to ToC
The authors would like to thank Silvio Peroni for developing LODE, a Live OWL Documentation Environment, which is used for representing the Cross Referencing Section of this document and Daniel Garijo for developing Widoco, the program used to create the template used in this documentation.