Reference: logical data models

Works, Collections, and other entities in the Paradicms conceptual data model can be represented in different logical data models, such as Schema.org or FOAF. The abstraction layer of the conceptual data model allows Paradicms apps to use data represented in a variety of logical models with little or no translation.

Structure of this document

This page documents the entities in the conceptual data model as well as the different ways of representing them. Each top-level section of the page documents an entity in the conceptual data model, with sub-sections for supported representation.

RDF classes

For RDF-based logical representations, each sub-section includes

• a short file name-safe identifier for the model, such as DcCollection, which is used in various input formats (e.g., as a sheet name in the spreadsheet format)
• a table of RDF properties with the following columns:

Term

Per the JSON-LD definition, a term is short word defined in a JSON-LD context that may be expanded to an IRI. Paradicms uses JSON-LD contexts to map terms such as description to IRIs (http://purl.org/dc/terms/description). For example, each column header in a spreadsheet or top-level YAML object key in the directory format is a term corresponding to a predicate IRI in an RDF statement.

The per-class property tables in this document are essentially human-readable versions of the JSON-LD contexts for the classes.

IRI

A property's term expands to this predicate IRI. For space reasons the IRIs are abbreviated with commonly-used namespaces:

Namespace prefix	Namespace IRI	Vocabulary
cms:	http://paradicms.github.io/ns/cms#	Paradicms custom properties
dcmitype:	http://purl.org/dc/dcmitype/	DCMI Type vocabulary
dcterms:	http://purl.org/dc/terms/	DCMI Metadata terms
exif:	http://www.w3.org/2003/12/exif/ns#	Exif vocabulary
foaf:	http://xmlns.com/foaf/0.1/	FOAF vocabulary
rdf:	http://www.w3.org/1999/02/22-rdf-syntax-ns#	RDF Model and Syntax
rdfs:	http://www.w3.org/2000/01/rdf-schema#	RDF Schema
schema:	https://schema.org/	Schema.org
skos:	http://www.w3.org/2004/02/skos/core#	SKOS Simple Knowledge Organization System
time:	http://www.w3.org/2006/time#>	Time Ontology in OWL
xsd:	http://www.w3.org/2001/XMLSchema#>	XML Schema

Description

Most of the properties used by Paradicms have well-described semantics, and are backed up by formal specifications in RDF Schema, Shapes Constraint Language (SHACL), and the Web Ontology Language (OWL). This column briefly summarizes the expected semantics of a property. For extended descriptions, refer to the original vocabulary for a property, such as DCMI Metadata Terms for dcterms:-prefixed properties like dcterms:creator.

Cardinality

This column indicates the cardinality of the class property. It can contain the following values:

• 0..1: The class may have zero or one value(s) for the property
• 0..n: The class may have zero or more values for the property
• 1: The class must have only one value for the property
• 1..n: The class must have at least one value for the property

Value type

A property IRI becomes the predicate of a (subject, predicate, object) RDF statement. The subject is usually implicit in the data source -- a synthesized IRI of a spreadsheet row, for example.

This column of the properties table specifies the expected type of the object in the statement. For example, values of title (i.e., dcterms:title) are expected to be strings, as in the following (subject, predicate, object) RDF triple:

<http://example.com/work> <http://purl.org/dc/terms/title> "Example title" .

Booleans, strings, and other literals in Paradicms have XML Schema types: a boolean is an xsd:boolean, a string is an xsd:string, and so on.

Literal syntax is handled in a per-data source fashion. In spreadsheet cells you don't need to quote (") strings, for example, since the cell boundaries delimit the string.

Other properties expect IRI values. For example, values of dcterms:license are expected to be IRIs referencing a valid License class instance:

<http://example.com/work> <http://purl.org/dc/terms/license> <http://creativecommons.org/licenses/nc/1.0/> .

The syntax for specifying IRIs varies between data sources. In the spreadsheet format, an IRI can be shortened with a namespace prefix, as in the following hypothetical sheet:

@id	creator
ss-work:ExampleWork	ss-person:ExamplePerson

After expanding the namespaces, the sheet translates to the following (subject, predicate, object) RDF triple:

<urn:spreadsheet:example:work:ExampleWork> <http://purl.org/dc/terms/creator> <urn:spreadsheet:example:work:person:ExamplePerson> .

Example values

For each property, the table lists one or more example values. As in the spreadsheet example above, a value may have a different syntax depending on the data source.

Collection

A Collection is an aggregate of Works.

DcCollection

rdf:type: dcmitype:Collection

Term	IRI	Description	Cardinality	ValueType	Example values
description	dcterms:description	Human-readable summary of the DcCollection	0..1	string	A collection}
hasPart	dcterms:hasPart	Reference to a Work that is part of the DcCollection	0..n	IRI	http://example.com/work
title	dcterms:title	Human-readable name of the DcCollection	1	string	My DcCollection

SchemaCollection

rdf:type: schema:Collection

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaCollection	0..n	string	An alternate name
contributor	schema:contributor	Reference to a contributor (usually an `Organization` or `Person`) of this SchemaCollection	0..n	IRI	http://example.com/Person
contributorLiteral	schema:contributor	String identifying a contributor to this SchemaCollection, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
copyrightHolder	schema:copyrightHolder	Reference to a rights holder (usually an `Organization` or `Person`) of this SchemaCollection	0..n	IRI	http://example.com/Person
copyrightHolderLiteral	schema:copyrightHolder	String identifying the rights holder of this SchemaCollection, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
creator	schema:creator	Reference to a creator (usually an `Organization` or `Person`) of this SchemaCollection	0..n	IRI	http://example.com/Person
creatorLiteral	schema:creator	String identifying a creator of this SchemaCollection, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
dateCreated	schema:dateCreated	Date-time the SchemaCollection was created	0..1	dateTime	2023-03-08T18:23:16+00:00
dateModified	schema:dateModified	Date-time the SchemaCollection was modified	0..1	dateTime	2023-03-08T18:23:16+00:00
description	schema:description	A human-readable long description for this SchemaCollection	0..1	string	Long description text
hasPart	schema:hasPart	Reference to a Work that is part of the SchemaCollection	0..n	IRI	http://example.com/work
image	schema:image	Reference to an `Image` that depicts this SchemaCollection	0..n	IRI	http://example.com/image
license	schema:license	Reference to a `License` of this SchemaCollection	0..n	IRI	http://example.com/License
name	schema:name	A human-readable short name for this SchemaCollection	1	string	My name
spatial	schema:spatial	Reference to a `Location` this SchemaCollection is spatially located in/at	0..n	IRI	http://example.com/Location
url	schema:url	URL of a webpage about this SchemaCollection, such as a Wikipedia page	0..n	IRI	http://example.com/somepage
usageInfo	schema:usageInfo	Reference to the `RightsStatement` governing this SchemaCollection	0..1	IRI	http://example.com/RightsStatement

Concept

A Concept is used for controlled vocabularies.

SchemaDefinedTerm

**rdf:type: schema:DefinedTerm

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaDefinedTerm	0..n	string	An alternate name
alternateName	schema:alternateName	Alternative name for this defined term	0..n	string	Alternative concept label
description	schema:description	A human-readable long description for this SchemaDefinedTerm	0..1	string	Long description text
image	schema:image	Reference to an `Image` that depicts this SchemaDefinedTerm	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaDefinedTerm	0..n	string	My name
url	schema:url	URL of a webpage about this SchemaDefinedTerm, such as a Wikipedia page	0..n	IRI	http://example.com/somepage
value	rdf:value	Value to use when a controlled value is selected	0..1	IRI or literal	5

SkosConcept

**rdf:type: skos:Concept

Term	IRI	Description	Cardinality	ValueType	Example values
altLabel	skos:altLabel	Alternative label	0..n	string	Alternative concept label
definition	skos:definition	Definition	0..1	string	Human-readable, long-form concept definition
depiction	foaf:depiction	Reference to an `Image` depicting this SkosConcept	0..n	IRI	http://example.com/image
prefLabel	skos:prefLabel	Preferred label	1	string	Concept label
value	rdf:value	Value to use when a controlled value is selected	0..1	IRI or literal	5

DateTimeDescription

A DateTimeDescription is used for partial date-times, where one or more of the components is unknown.

OwlTimeDateTimeDescription

rdf:type: time:DateTimeDescription

Term	IRI	Description	Cardinality	ValueType	Example values
day	time:day	Day of the month, 1..31 inclusive	0..1	integer	5
hour	time:hour	Hour of the day, 0..23 inclusive	0..1	integer	5
minute	time:minute	Minute of the hour, 0..59 inclusive	0..1	integer	5
month	time:month	Month of the year, 1..12 inclusive	0..1	integer	5
year	time:year	Gregorian calendar year	0..1	integer	2023

Event

An Event is an event happening at a certain time and location.

SchemaEvent

rdf:type: schema:Event

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaEvent	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaEvent	0..1	string	Long description text
endDate	schema:endDate	Date-time the SchemaEvent ends	0..1	dateTime	2023-03-08T18:23:16+00:00
image	schema:image	Reference to an `Image` that depicts this SchemaEvent	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaEvent	1	string	My name
startDate	schema:startDate	Date-time the SchemaEvent starts	0..1	dateTime	2023-03-08T18:23:16+00:00
url	schema:url	URL of a webpage about this SchemaEvent, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

SchemaExhibitionEvent

rdf:type: schema:ExhibitionEvent

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaExhibitionEvent	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaExhibitionEvent	0..1	string	Long description text
endDate	schema:endDate	Date-time the SchemaExhibitionEvent ends	0..1	dateTime	2023-03-08T18:23:16+00:00
image	schema:image	Reference to an `Image` that depicts this SchemaExhibitionEvent	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaExhibitionEvent	1	string	My name
startDate	schema:startDate	Date-time the SchemaExhibitionEvent starts	0..1	dateTime	2023-03-08T18:23:16+00:00
url	schema:url	URL of a webpage about this SchemaExhibitionEvent, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

Image

An Image is a visual surrogate for a Work, Collection, Person, or other instance of a Paradicms entity.

DcImage

rdf:type: dcmitype:Image

Term	IRI	Description	Cardinality	ValueType	Example values
contributor	dcterms:contributor	Reference to a contributor (usually an `Organization` or `Person`) of this DcImage	0..n	IRI	http://example.com/Person
contributorLiteral	dcterms:contributor	String identifying a contributor to this DcImage, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
copyable	cms:imageCopyable	Is the image copyable from its source?	0..1	boolean	true
creator	dcterms:creator	Reference to a creator (usually an `Organization` or `Person`) of this DcImage	0..n	IRI	http://example.com/Person
creatorLiteral	dcterms:creator	String identifying a creator of this DcImage, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
format	dcterms:format	MIME type of the image	0..1	string	image/jpeg
height	exif:height	Exact height of the image, in pixels	0..1	integer	200
license	dcterms:license	Reference to a `License` of this DcImage	0..n	IRI	http://example.com/License
maxHeight	cms:imageMaxHeight	Maximum height of the image, in pixels	0..1	integer	200
maxWidth	cms:imageMaxWidth	Maximum width of the image, in pixels	0..1	integer	200
modified	dcterms:modified	Date-time the DcImage was modified	0..1	dateTime	2023-03-08T18:23:16+00:00
rights	dcterms:rights	Reference to the `RightsStatement` governing this DcImage	0..1	IRI	http://example.com/RightsStatement
rightsHolder	dcterms:rightsHolder	Reference to a rights holder (usually an `Organization` or `Person`) of this DcImage	0..n	IRI	http://example.com/Person
rightsHolderLiteral	dcterms:rightsHolder	String identifying the rights holder of this DcImage, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
source	dcterms:source	reference to another `Image` that this `Image` is a thumbnail of, or reference to a `Work` that this `Image` depicts	0..1	IRI	http://example.com/OtherImage
src	cms:imageSrc	Absolute or relative URL where the image data is stored; if not specified, use the `Image`'s IRI	0..1	string	http://example.com/image.jpg
title	dcterms:title	Human-readable name of the DcImage	0..1	string	My DcImage
width	exif:width	Exact height of the image, in pixels	0..1	integer	200

SchemaImageObject

rdf:type: schema:ImageObject

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaImageObject	0..n	string	An alternate name
caption	schema:caption	Caption for this SchemaImageObject	0..1	IRI	Image caption
contentUrl	schema:contentUrl	Absolute or relative URL where the image data is stored; if not specified, use the `Image`'s IRI	0..1	string	http://example.com/image.jpg
contributor	schema:contributor	Reference to a contributor (usually an `Organization` or `Person`) of this SchemaImageObject	0..n	IRI	http://example.com/Person
contributorLiteral	schema:contributor	String identifying a contributor to this SchemaImageObject, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
copyrightHolder	schema:copyrightHolder	Reference to a rights holder (usually an `Organization` or `Person`) of this SchemaImageObject	0..n	IRI	http://example.com/Person
copyrightHolderLiteral	schema:copyrightHolder	String identifying the rights holder of this SchemaImageObject, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
creator	schema:creator	Reference to a creator (usually an `Organization` or `Person`) of this SchemaImageObject	0..n	IRI	http://example.com/Person
creatorLiteral	schema:creator	String identifying a creator of this SchemaImageObject, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
dateCreated	schema:dateCreated	Date-time the SchemaImageObject was created	0..1	dateTime	2023-03-08T18:23:16+00:00
dateModified	schema:dateModified	Date-time the SchemaImageObject was modified	0..1	dateTime	2023-03-08T18:23:16+00:00
description	schema:description	A human-readable long description for this SchemaImageObject	0..1	string	Long description text
image	schema:image	Reference to an `Image` that depicts this SchemaImageObject	0..n	IRI	http://example.com/image
license	schema:license	Reference to a `License` of this SchemaImageObject	0..n	IRI	http://example.com/License
name	schema:name	A human-readable short name for this SchemaImageObject	0..n	string	My name
spatial	schema:spatial	Reference to a `Location` this SchemaImageObject is spatially located in/at	0..n	IRI	http://example.com/Location
thumbnail	schema:thumbnail	Reference to a thumbnail `Image` derived from this SchemaImageObject	0..n	IRI	http://example.com/image
url	schema:url	URL of a webpage about this SchemaImageObject, such as a Wikipedia page	0..n	IRI	http://example.com/somepage
usageInfo	schema:usageInfo	Reference to the `RightsStatement` governing this SchemaImageObject	0..1	IRI	http://example.com/RightsStatement

StubImage

See stub models.

License

A License describes copyright licenses.

DcLicenseDocument

rdf:type: dcmitype:LicenseDocument

Term	IRI	Description	Cardinality	ValueType	Example values
title	dcterms:title	Human-readable name of the DcLicenseDocument	1	string	My DcLicenseDocument

Location

A Location is an entity with a fixed (latitude/longitude) spatial presence.

SchemaPlace

rdf:type: schema:Place

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaPlace	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaPlace	0..1	string	Long description text
image	schema:image	Reference to an `Image` that depicts this SchemaPlace	0..n	IRI	http://example.com/image
latitude	schema:latitude	WGS84 latitude of the SchemaPlace's centroid	0..1	decimal	42.7281
longitude	schema:longitude	WGS84 longitude of the SchemaPlace's centroid	0..1	decimal	-73.68758
name	schema:name	A human-readable short name for this SchemaPlace	0..n	string	My name
url	schema:url	URL of a webpage about this SchemaPlace, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

StubLocation

See stub models.

Organization

An Organization is a company, institution, or other organization that can act as an agent.

FoafOrganization

rdf:type: foaf:Organization

Term	IRI	Description	Cardinality	ValueType	Example values
depiction	foaf:depiction	Reference to an `Image` depicting this FoafOrganization	0..n	IRI	http://example.com/image
homepage	foaf:homepage	Reference to the homepage of this FoafOrganization	0..n	string or IRI	http://example.com/somepage
name	foaf:name	Human-readable name of this FoafOrganization	1	string	Alan Turing
page	foaf:page	Reference to a webpage, such as a Wikipedia page, whose focus is this FoafOrganization	0..n	string or IRI	http://example.com/somepage

SchemaOrganization

rdf:type: schema:Organization

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaOrganization	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaOrganization	0..1	string	Long description text
familyName	schema:familyName	Family name of this SchemaOrganization	0..1	string	Doe
givenName	schema:givenName	Given name of this SchemaOrganization	0..1	string	John
image	schema:image	Reference to an `Image` that depicts this SchemaOrganization	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaOrganization	1	string	My name
url	schema:url	URL of a webpage about this SchemaOrganization, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

Person

An Person is a human such as Alan Turing.

FoafPerson

rdf:type: foaf:Person

Term	IRI	Description	Cardinality	ValueType	Example values
depiction	foaf:depiction	Reference to an `Image` depicting this FoafPerson	0..n	IRI	http://example.com/image
familyName	foaf:family	Family name of the person	0..1	string	Turing
givenName	foaf:givenName	Given name of the person	0..1	string	Alan
homepage	foaf:homepage	Reference to the homepage of this FoafPerson	0..n	string or IRI	http://example.com/somepage
name	foaf:name	Human-readable name of this FoafPerson	1	string	Alan Turing
page	foaf:page	Reference to a webpage, such as a Wikipedia page, whose focus is this FoafPerson	0..n	string or IRI	http://example.com/somepage

SchemaPerson

rdf:type: schema:Person

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaPerson	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaPerson	0..1	string	Long description text
image	schema:image	Reference to an `Image` that depicts this SchemaPerson	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaPerson	1	string	My name
url	schema:url	URL of a webpage about this SchemaPerson, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

StubPerson

See stub models.

Property

A Property is metadata about properties of Images, Works, and other class instances. Property metadata is primarily used by Paradicms apps to determine how to handle arbitrary/unknown properties. For example, by indicating a property is searchable the work-search app will include the property's values in the fulltext search index. Similarly, a property that is marked filterable will be incorporated into the work-search app's filter system.

RdfProperty

rdf:type: rdf:Property

Term	IRI	Description	Cardinality	ValueType	Example values
comment	rdfs:comment	Description of this RdfProperty	0..1	string	Human-readable long description of this RdfProperty
depiction	foaf:depiction	Reference to an `Image` depicting this RdfProperty	0..n	IRI	http://example.com/image
filterable	cms:propertyFilterable	Is the property filterable? e.g., it has a limited set of values or range	0..1	boolean	true
hidden	cms:hidden	Is the property hidden in the user interface?	0..1	boolean	true
label	rdfs:label	Short human-readable label of this RdfProperty	1	string	My RdfProperty
order	cms:propertyOrder	Order of the property within its group	0..1	integer	0
range	rdfs:range	Class to which the values of the property belong	0..1	IRI	http://example.com/propertyValueClass
searchable	cms:propertySearchable	Is the property fulltext searchable?	0..1	boolean	true

SchemaProperty

rdf:type: schema:Property

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaProperty	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaProperty	0..1	string	Long description text
filterable	cms:propertyFilterable	Is the property filterable? e.g., it has a limited set of values or range	0..1	boolean	true
hidden	cms:hidden	Is the property hidden in the user interface?	0..1	boolean	true
image	schema:image	Reference to an `Image` that depicts this SchemaProperty	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaProperty	1	string	My name
order	cms:propertyOrder	Order of the property within its group	0..1	integer	0
rangeIncludes	schema:rangeIncludes	Class to which the values of the property belong	0..1	IRI	http://example.com/propertyValueClass
searchable	cms:propertySearchable	Is the property fulltext searchable?	0..1	boolean	true
url	schema:url	URL of a webpage about this SchemaProperty, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

PropertyGroup

One or more Property's can be grouped into a PropertyGroup. Propertys in the same PropertyGroup are usually displayed together in a user interface.

CmsPropertyGroup

rdf:type: cms:PropertyGroup

Term	IRI	Description	Cardinality	ValueType	Example values
comment	rdfs:comment	Description of this CmsPropertyGroup	0..1	string	Human-readable long description of this CmsPropertyGroup
depiction	foaf:depiction	Reference to an `Image` depicting this CmsPropertyGroup	0..n	IRI	http://example.com/image
hasPart	dcterms:hasPart	Reference a Property that is part of the property group	0..n	string	http://example.com/work
label	rdfs:label	Short human-readable label of this CmsPropertyGroup	1	string	My CmsPropertyGroup

RightsStatement

A RightsStatement describes interoperable rights statements, usually from RightsStatement.org.

DcRightsStatement

rdf:type: dcterms:RightsStatement

Term	IRI	Description	Cardinality	ValueType	Example values
title	dcterms:title	Human-readable name of the DcRightsStatement	1	string	My DcRightsStatement

Text

A Text is used to associate rights metadata with a text string.

DcText

rdf:type: dcmitype:Text

Term	IRI	Description	Cardinality	ValueType	Example values
contributor	dcterms:contributor	Reference to a contributor (usually an `Organization` or `Person`) of this DcText	0..n	IRI	http://example.com/Person
contributorLiteral	dcterms:contributor	String identifying a contributor to this DcText, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
creator	dcterms:creator	Reference to a creator (usually an `Organization` or `Person`) of this DcText	0..n	IRI	http://example.com/Person
creatorLiteral	dcterms:creator	String identifying a creator of this DcText, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
license	dcterms:license	Reference to a `License` of this DcText	0..n	IRI	http://example.com/License
rights	dcterms:rights	Reference to the `RightsStatement` governing this DcText	0..1	IRI	http://example.com/RightsStatement
rightsHolder	dcterms:rightsHolder	Reference to a rights holder (usually an `Organization` or `Person`) of this DcText	0..n	IRI	http://example.com/Person
rightsHolderLiteral	dcterms:rightsHolder	String identifying the rights holder of this DcText, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
value	rdf:value	Text value	1	string	"Text with metadata"

SchemaTextObject

rdf:type: schema:TextObject

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaTextObject	0..n	string	An alternate name
description	schema:description	A human-readable long description for this SchemaTextObject	0..1	string	Long description text
image	schema:image	Reference to an `Image` that depicts this SchemaTextObject	0..n	IRI	http://example.com/image
name	schema:name	A human-readable short name for this SchemaTextObject	0..n	string	My name
text	schema:text	Text value	1	string	"Text with metadata"
url	schema:url	URL of a webpage about this SchemaTextObject, such as a Wikipedia page	0..n	IRI	http://example.com/somepage

Work

A Work is a built or created object such as a manuscript or garment.

DcPhysicalObject

rdf:type: dcmitype:PhysicalObject

Term	IRI	Description	Cardinality	ValueType	Example values
contributor	dcterms:contributor	Reference to a contributor (usually an `Organization` or `Person`) of this DcPhysicalObject	0..n	IRI	http://example.com/Person
contributorLiteral	dcterms:contributor	String identifying a contributor to this DcPhysicalObject, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
created	dcterms:created	Date-time the DcPhysicalObject was created	0..1	dateTime	2023-03-08T18:23:16+00:00
creator	dcterms:creator	Reference to a creator (usually an `Organization` or `Person`) of this DcPhysicalObject	0..n	IRI	http://example.com/Person
creatorLiteral	dcterms:creator	String identifying a creator of this DcPhysicalObject, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
description	dcterms:description	Human-readable summary of the DcPhysicalObject	0..1	string	A collection}
license	dcterms:license	Reference to a `License` of this DcPhysicalObject	0..n	IRI	http://example.com/License
modified	dcterms:modified	Date-time the DcPhysicalObject was modified	0..1	dateTime	2023-03-08T18:23:16+00:00
relation	dcterms:relation	Reference to a related resource, such as a Wikipedia page	0..n	IRI	http://example.com/related
rights	dcterms:rights	Reference to the `RightsStatement` governing this DcPhysicalObject	0..1	IRI	http://example.com/RightsStatement
rightsHolder	dcterms:rightsHolder	Reference to a rights holder (usually an `Organization` or `Person`) of this DcPhysicalObject	0..n	IRI	http://example.com/Person
rightsHolderLiteral	dcterms:rightsHolder	String identifying the rights holder of this DcPhysicalObject, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
spatial	dcterms:spatial	Reference to a `Location` this DcPhysicalObject is spatially located in/at	0..n	IRI	http://example.com/Location
title	dcterms:title	Human-readable name of the DcPhysicalObject	1	string	My DcPhysicalObject

SchemaCreativeWork

rdf:type: schema:CreativeWork

Term	IRI	Description	Cardinality	ValueType	Example values
alternateName	schema:alternateName	A human-readable alternate name for this SchemaCreativeWork	0..n	string	An alternate name
contributor	schema:contributor	Reference to a contributor (usually an `Organization` or `Person`) of this SchemaCreativeWork	0..n	IRI	http://example.com/Person
contributorLiteral	schema:contributor	String identifying a contributor to this SchemaCreativeWork, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
copyrightHolder	schema:copyrightHolder	Reference to a rights holder (usually an `Organization` or `Person`) of this SchemaCreativeWork	0..n	IRI	http://example.com/Person
copyrightHolderLiteral	schema:copyrightHolder	String identifying the rights holder of this SchemaCreativeWork, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
creator	schema:creator	Reference to a creator (usually an `Organization` or `Person`) of this SchemaCreativeWork	0..n	IRI	http://example.com/Person
creatorLiteral	schema:creator	String identifying a creator of this SchemaCreativeWork, used as a fallback when no IRI is available	0..n	string	"Wikipedia user Bob"
dateCreated	schema:dateCreated	Date-time the SchemaCreativeWork was created	0..1	dateTime	2023-03-08T18:23:16+00:00
dateModified	schema:dateModified	Date-time the SchemaCreativeWork was modified	0..1	dateTime	2023-03-08T18:23:16+00:00
description	schema:description	A human-readable long description for this SchemaCreativeWork	0..1	string	Long description text
image	schema:image	Reference to an `Image` that depicts this SchemaCreativeWork	0..n	IRI	http://example.com/image
license	schema:license	Reference to a `License` of this SchemaCreativeWork	0..n	IRI	http://example.com/License
name	schema:name	A human-readable short name for this SchemaCreativeWork	0..n	string	My name
spatial	schema:spatial	Reference to a `Location` this SchemaCreativeWork is spatially located in/at	0..n	IRI	http://example.com/Location
url	schema:url	URL of a webpage about this SchemaCreativeWork, such as a Wikipedia page	0..n	IRI	http://example.com/somepage
usageInfo	schema:usageInfo	Reference to the `RightsStatement` governing this SchemaCreativeWork	0..1	IRI	http://example.com/RightsStatement

StubWork

See stub models.

Stub models

Enrichment in Paradicms works by looking for connections between models declared in Paradicms and external IRIs, such as a Paradicms SchemaCreativeWork declaring itself schema:sameAs the Getty collection object https://data.getty.edu/museum/collection/object/4d302ecd-f3a5-4e52-9e97-ca3ca8d5c9e6:

Example sameAs reference to a Getty collection object

<http://example.com/work> a schema:CreativeWork ;
  schema:sameAs <https://data.getty.edu/museum/collection/object/4d302ecd-f3a5-4e52-9e97-ca3ca8d5c9e6>
  .

In these situations it's often the case that the Paradicms work (http://example.com/work in the snippet above) does not assert any statements of its own except the sameAs link to the external IRI. In these situations you can elide the schema:CreativeWork entirely by utilizing a stub model.

A stub model only specifies an external IRI like https://data.getty.edu/museum/collection/object/4d302ecd-f3a5-4e52-9e97-ca3ca8d5c9e6. It makes no statements of its own. A stub Work can be declared in a Paradicms-formatted spreadsheet by creating a sheet named StubWork with a single column, @id. The @id column will contain external IRIs, such as Wikidata and Getty IRIs in the screenshot below.

During the enrichment process, the StubWork instance will be replaced by a corresponding Work instance from the external data source, such as a WikibaseItem (for Wikidata @ids) or a LinkedArtWork (for Getty @ids). The StubWork instance will not be included in the RDF consumed by Paradicms apps, since it makes no statements of its own.

See the sections above for the available stub model types.