Digital Object

Derivative Generators

Attributes

Count
KeyField	GRPM.6_Digital_Object
Identifier	GRPM.6
Name	Digital Object
Description	The digital object reference data model provides a list of standard fields that are typically present in the general description of a digital object in a cultural heritage data system. A digital object is meant in the sense of a digitally encoded information object represented as bit sequences that have been encoded with a particular format and can be digitally decoded and represented to an end user of a digital information system. Digital objects are often stored as reference or documentation objects relative to cultural heritage items such as textual descriptions stored as PDFs, documentary images, 3D representations and so on. Digital Objects can also form cultural heritage objects in their own right, though this model does not aim to represent this potential aspect of the digital object. Because of the choice to model, the digital object in its role as a secondary documentary resource, the reference data model has been kept as light as possible. This reference model intends to remain at a general level description, providing a consolidated, high-level reference data model of most commonly reused descriptors for a digital object and to provide for these, in turn, a set of standard semantic mappings to the CIDOC CRM. Moreover, each field is marked with regards to its potential functionality with regards to instance matching between overlapping datasets.
System Name	Digital_Object
Ontology Scope	D1 Digital Object
Version	2.0
Version Date
Last Modified	2025-09-10
Author	Matthew Fielding, Denitsa Nenova, George Bruseker
Funder	University of Zurich, SARI
Funding Project	grp_zurich
Ontology	crm_7.1.3, cpro_2.0, dcterms_1.1, aaao_2.0, crmdig_4.0, la_0.9, lrmoo_1.0, rdfs_1.1
Project	grp_zurich
URI	http://takin.solutions/space/grpzurich/composite/GRPM.6

Ontology Graph

Instance Graph

Turtle RDF

                            @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .
@prefix la: <https://linked.art/ns/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crm:P104_is_subject_to <https://example.swissartresearch.net/conceptual_object/SRDF.171_1> ;
    crm:P1_is_identified_by <https://example.swissartresearch.net/conceptual_object/4_1>,
        <https://example.swissartresearch.net/conceptual_object/8_1> ;
    crm:P2_has_type <https://example.swissartresearch.net/type/11_1> ;
    crm:P43_has_dimension <https://example.swissartresearch.net/dimension/98_1>,
        <https://example.swissartresearch.net/dimension/SRDF.344_1> ;
    crm:P67_refers_to <https://example.swissartresearch.net/thing/566_1> ;
    crm:P67i_is_referred_to_by <https://example.swissartresearch.net/conceptual_object/13_1> ;
    crmdig:L11i_was_output_of <https://example.swissartresearch.net/event/SRDF.349_1> ;
    la:digitally_available_via <https://example.swissartresearch.net/conceptual_object/106_1> .

<https://example.swissartresearch.net/actor/SRDF.171_2> a crm:E39_Actor .

<https://example.swissartresearch.net/conceptual_object/106_1> a la:DigitalService .

<https://example.swissartresearch.net/conceptual_object/13_1> a crm:E33_Linguistic_Object ;
    crm:P190_has_symbolic_content "Statement_string_content" ;
    crm:P2_has_type <https://example.swissartresearch.net/type/14_1> ;
    crm:P72_has_language <https://example.swissartresearch.net/type/16_1> .

<https://example.swissartresearch.net/conceptual_object/4_1> a crm:E33_E41_Linguistic_Appellation ;
    crm:P190_has_symbolic_content "name_content_value" ;
    crm:P2_has_type <https://example.swissartresearch.net/type/5_1> .

<https://example.swissartresearch.net/conceptual_object/8_1> a crm:E42_Identifier ;
    crm:P190_has_symbolic_content "Identifier_value_content" ;
    crm:P2_has_type <https://example.swissartresearch.net/identifier/9_1> .

<https://example.swissartresearch.net/conceptual_object/SRDF.171_1> a crm:E30_Right ;
    crm:P2_has_type <https://example.swissartresearch.net/type/SRDF.172_1> ;
    crm:P67i_is_referred_to_by <https://example.swissartresearch.net/conceptual_object/SRDF.173_1> ;
    crm:P75i_is_possessed_by <https://example.swissartresearch.net/actor/SRDF.171_2> .

<https://example.swissartresearch.net/conceptual_object/SRDF.173_1> a crm:E33_Linguistic_Object .

<https://example.swissartresearch.net/dimension/98_1> a crm:E54_Dimension ;
    crm:P2_has_type <https://example.swissartresearch.net/type/104_1> ;
    crm:P90_has_value "integer" ;
    crm:P91_has_unit <https://example.swissartresearch.net/type/99_1> .

<https://example.swissartresearch.net/dimension/SRDF.344_1> a crm:E54_Dimension .

<https://example.swissartresearch.net/event/SRDF.349_1> a crmdig:D7_Digital_Machine_Event ;
    crm:P2_has_type <https://example.swissartresearch.net/type/SRDF.349_2> ;
    crm:P4_has_time-span <https://example.swissartresearch.net/time_span/SRDF.350_1> .

<https://example.swissartresearch.net/identifier/9_1> a crm:E55_Type .

<https://example.swissartresearch.net/thing/566_1> a crm:E1_CRM_Entity .

<https://example.swissartresearch.net/time_span/SRDF.350_1> a crm:E52_Time-Span .

<https://example.swissartresearch.net/type/104_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/11_1> a crm:E55_Type ;
    crm:P2_has_type <https://example.swissartresearch.net/type/12_1> .

<https://example.swissartresearch.net/type/12_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/14_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/16_1> a crm:E56_Language .

<https://example.swissartresearch.net/type/5_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/99_1> a crm:E58_Measurement_Unit .

<https://example.swissartresearch.net/type/SRDF.172_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/SRDF.349_2> a crm:E55_Type ;
    rdfs:label "Creation / Modification" .

JSON-LD

Samples

Digital Object	Digital Object Label

Fields

[CAT.1] Names and Identifiers

Field Collection	Identifier	Name	Description	Ontology Path	Expected Value Type	Set Value
Name	LAF.6	Name	This field is used to record the string value of the name attributed to the documented digital object.	->crm:P1_is_identified_by->crm:E33_E41_Linguistic_Appellation[4_1]->crm:P190_has_symbolic_content->rdf:literal	String
Name	LAF.5	Name Type	This field is used to record the type of the name attributed to the documented digital object.	->crm:P1_is_identified_by->crm:E33_E41_Linguistic_Appellation[4_1]->crm:P2_has_type->crm:E55_Type[5_1]	Concept	http://vocab.getty.edu/aat/300404670
Identifier	LAF.10	Identifier	This field is used to record an identifier attributed to the documented digital object.	->crm:P1_is_identified_by->crm:E42_Identifier[8_1]->crm:P190_has_symbolic_content->rdf:literal	String
Identifier	LAF.9	Identifier Type	This field is used to record the type of the identifier attributed to the documented digital object.	->crm:P1_is_identified_by->crm:E42_Identifier[8_1]->crm:P2_has_type->crm:E55_Type[9_1]	Concept	http://vocab.getty.edu/aat/300404626

Ontology Graph

Instance Graph

Turtle RDF

                    @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crm:P1_is_identified_by <https://example.swissartresearch.net/conceptual_object/4_1>,
        <https://example.swissartresearch.net/conceptual_object/8_1> .

<https://example.swissartresearch.net/conceptual_object/4_1> a crm:E33_E41_Linguistic_Appellation ;
    crm:P190_has_symbolic_content "name_content_value" ;
    crm:P2_has_type <https://example.swissartresearch.net/type/5_1> .

<https://example.swissartresearch.net/conceptual_object/8_1> a crm:E42_Identifier ;
    crm:P190_has_symbolic_content "Identifier_value_content" ;
    crm:P2_has_type <https://example.swissartresearch.net/identifier/9_1> .

<https://example.swissartresearch.net/identifier/9_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/5_1> a crm:E55_Type .

JSON-LD

Name: Sample

Subject	Name Type	Name
Count:

Identifier: Sample

Subject	Identifier	Identifier Type
Count:

[CAT.16] Classification

Field Collection	Identifier	Name	Description	Ontology Path	Expected Value Type	Set Value	Expected Model	Expected Collection
Type	LAF.11	Type	This field is used to record the formal type of the documented digital object.	->crm:P2_has_type->crm:E55_Type[11_1]	Concept
Type	LAF.12	Metatype	This field is used to record the metatype attributed to a formal classification. The function of a metatype is to enable the programmatic distinction between different kinds of type applied to the same documented digital object.	->crm:P2_has_type->crm:E55_Type[11_1]->crm:P2_has_type->crm:E55_Type[12_1]	Concept

Ontology Graph

Instance Graph

Turtle RDF

                    @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crm:P2_has_type <https://example.swissartresearch.net/type/11_1> .

<https://example.swissartresearch.net/type/11_1> a crm:E55_Type ;
    crm:P2_has_type <https://example.swissartresearch.net/type/12_1> .

<https://example.swissartresearch.net/type/12_1> a crm:E55_Type .

JSON-LD

Type: Sample

Subject	Meta-type	Type
Count:

[CAT.3] Substance

Field Collection	Identifier	Name	Description	Ontology Path	Expected Value Type	Expected Model	Expected Collection
Dimension	SRDF.344	Dimension	This field is used to link the documented digital object to its dimensions.	->crm:P43_has_dimension->crm:E54_Dimension[SRDF.344_1]	Collection		Dimension
Dimension	LAF.101	Dimension Value	This field is used to record the value for the documented digital object of dimension.	->crm:P43_has_dimension->crm:E54_Dimension[98_1]->crm:P90_has_value->rdf:literal	Integer
Dimension	LAF.99	Dimension Unit	This field is used to record the unit for the documented digital object of dimension.	->crm:P43_has_dimension->crm:E54_Dimension[98_1]->crm:P91_has_unit->crm:E58_Measurement_Unit[99_1]	Concept
Dimension	LAF.104	Dimension Type	This field is used to record the formal type of the documented digital object's dimension.	->crm:P43_has_dimension->crm:E54_Dimension[98_1]->crm:P2_has_type->crm:E55_Type[104_1]	Concept
Right	SRDF.171	Right Holder	This field is used to record the right holder for the documented digital object.	->crm:P104_is_subject_to->crm:E30_Right[SRDF.171_1]->crm:P75i_is_possessed_by->crm:E39_Actor[SRDF.171_2]	Reference Model	Person , Group
Right	SRDF.172	Right Type	This field is used to record the type of right which the right holder holds over the documented digital object.	->crm:P104_is_subject_to->crm:E30_Right[SRDF.171_1]->crm:P2_has_type->crm:E55_Type[SRDF.172_1]	Concept
Right	SRDF.173	Right Description	This field is used to link the documented digital object to a description which describes the right one holds over it.	->crm:P104_is_subject_to->crm:E30_Right[SRDF.171_1]->crm:P67i_is_referred_to_by->crm:E33_Linguistic_Object[SRDF.173_1]	Collection		Statement

Ontology Graph

Instance Graph

Turtle RDF

                    @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crm:P104_is_subject_to <https://example.swissartresearch.net/conceptual_object/SRDF.171_1> ;
    crm:P43_has_dimension <https://example.swissartresearch.net/dimension/98_1>,
        <https://example.swissartresearch.net/dimension/SRDF.344_1> .

<https://example.swissartresearch.net/actor/SRDF.171_2> a crm:E39_Actor .

<https://example.swissartresearch.net/conceptual_object/SRDF.171_1> a crm:E30_Right ;
    crm:P2_has_type <https://example.swissartresearch.net/type/SRDF.172_1> ;
    crm:P67i_is_referred_to_by <https://example.swissartresearch.net/conceptual_object/SRDF.173_1> ;
    crm:P75i_is_possessed_by <https://example.swissartresearch.net/actor/SRDF.171_2> .

<https://example.swissartresearch.net/conceptual_object/SRDF.173_1> a crm:E33_Linguistic_Object .

<https://example.swissartresearch.net/dimension/98_1> a crm:E54_Dimension ;
    crm:P2_has_type <https://example.swissartresearch.net/type/104_1> ;
    crm:P90_has_value "integer" ;
    crm:P91_has_unit <https://example.swissartresearch.net/type/99_1> .

<https://example.swissartresearch.net/dimension/SRDF.344_1> a crm:E54_Dimension .

<https://example.swissartresearch.net/type/104_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/99_1> a crm:E58_Measurement_Unit .

<https://example.swissartresearch.net/type/SRDF.172_1> a crm:E55_Type .

JSON-LD

Right: Sample

Subject	Right Description	Right Type	Right Holder
Count:

Dimension: Sample

Subject	Dimension Value	Dimension Type	Dimension Unit	Dimensions
Count:

[CAT.5] Events

Field Collection	Identifier	Name	Description	Ontology Path	Expected Value Type	Expected Collection
Digital Object Event	SRDF.349	Digital Object Event Type	This field is used to indicate the type of documented digital object event.	->crmdig:L11i_was_output_of->crmdig:D7_Digital_Machine_Event[SRDF.349_1]->crm:P2_has_type->crm:E55_Type[SRDF.349_2]	Concept
Digital Object Event	SRDF.350	Digital Object Event Timespan	This field is used to link the documented digital object event activity to an instance of time-span recording the temporal extent of the activity.	->crmdig:L11i_was_output_of->crmdig:D7_Digital_Machine_Event[SRDF.349_1]->crm:P4_has_time-span->crm:E52_Time-span[SRDF.350_1]	Collection	Timespan
Digital Service	LAF.618	Digital Service		->la:digitally_available_via->la:DigitalService[106_1]	Collection	Digital Service

Ontology Graph

Instance Graph

Turtle RDF

                    @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .
@prefix la: <https://linked.art/ns/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crmdig:L11i_was_output_of <https://example.swissartresearch.net/event/SRDF.349_1> ;
    la:digitally_available_via <https://example.swissartresearch.net/conceptual_object/106_1> .

<https://example.swissartresearch.net/conceptual_object/106_1> a la:DigitalService .

<https://example.swissartresearch.net/event/SRDF.349_1> a crmdig:D7_Digital_Machine_Event ;
    crm:P2_has_type <https://example.swissartresearch.net/type/SRDF.349_2> ;
    crm:P4_has_time-span <https://example.swissartresearch.net/time_span/SRDF.350_1> .

<https://example.swissartresearch.net/time_span/SRDF.350_1> a crm:E52_Time-Span .

<https://example.swissartresearch.net/type/SRDF.349_2> a crm:E55_Type ;
    rdfs:label "Creation / Modification" .

JSON-LD

Digital Object Event: Sample

Subject	Digital Object Event Type	Digital Object Event Timespan
Count:

Digital Service: Sample

Subject	Digital Service
Count:

[CAT.12] Aboutness

Field Collection	Identifier	Name	Description	Ontology Path	Expected Value Type	Set Value	Expected Model	Expected Collection
	LAF.566	Entity Reference	This field is used to link the documented digital object to another entity to which it refers.	->crm:P67_refers_to->crm:E1_CRM_Entity[566_1]	Reference Model		Archival Unit

Ontology Graph

Instance Graph

Turtle RDF

                    @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crm:P67_refers_to <https://example.swissartresearch.net/thing/566_1> .

<https://example.swissartresearch.net/thing/566_1> a crm:E1_CRM_Entity .

JSON-LD

Entity Reference: Sample

Subject	Entity Reference
Count:

[CAT.13] Description

Field Collection	Identifier	Name	Description	Ontology Path	Expected Value Type
Statement	LAF.15	Statement	This field is used to link to a statement which describes the the documented digital object.	->crm:P67i_is_referred_to_by->crm:E33_Linguistic_Object[13_1]->crm:P190_has_symbolic_content->rdf:literal	String
Statement	LAF.14	Statement Type	This field is used to record the formal type of the statement made about the documented digital object.	->crm:P67i_is_referred_to_by->crm:E33_Linguistic_Object[13_1]->crm:P2_has_type->crm:E55_Type[14_1]	Concept
Statement	LAF.16	Statement Language	This field is used to record the language of the statement describing the documented digital object.	->crm:P67i_is_referred_to_by->crm:E33_Linguistic_Object[13_1]->crm:P72_has_language->crm:E56_Language[16_1]	Concept

Ontology Graph

Instance Graph

Turtle RDF

                    @prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .
@prefix crmdig: <http://www.ics.forth.gr/isl/CRMdig/> .

<https://grp.example/model/digital_object> a crmdig:D1_Digital_Object ;
    crm:P67i_is_referred_to_by <https://example.swissartresearch.net/conceptual_object/13_1> .

<https://example.swissartresearch.net/conceptual_object/13_1> a crm:E33_Linguistic_Object ;
    crm:P190_has_symbolic_content "Statement_string_content" ;
    crm:P2_has_type <https://example.swissartresearch.net/type/14_1> ;
    crm:P72_has_language <https://example.swissartresearch.net/type/16_1> .

<https://example.swissartresearch.net/type/14_1> a crm:E55_Type .

<https://example.swissartresearch.net/type/16_1> a crm:E56_Language .

JSON-LD

Statement: Sample

Subject	Statement Type	Statement	Statement Language
Count: