Classification (recommended)

Contents

Definition

Assignment of the object or work to a classification or other vocabulary that groups similar objects on the basis of defined characteristics

Other possible database element names

Subject group

Functional classification

Subject classification

Object category

Text/URI

Text (controlled vocabulary) and/or URI

Repeatable

Yes

Obligation level

Recommended

Recording notes

This data element assigns the cultural heritage object to a larger systematic or thematic grouping. Taxonomic information for objects in natural history collections may also be recorded in this data element. It is sufficient to indicate the most specific hierarchical level of a classification. Higher levels should not be recorded.

In addition, information on local classifications may be entered in another data element (e.g. on sub-collection / collection).

CARE: The assignment to a classification should not limit the ambiguity of a collection item. In order to make the historical context of the data production transparent, the classification information in an event in the object history "Type assignment" is suitable. Alternative vocabularies are helpful to mitigate the Eurocentric perspective (see terminology recommendation).

Terminology recommendation

Dewey Decimal Classification: DDC subject classes

Integrated Authority File (GND, German National Library): GND Subject Categories und GND Subject headings sensu stricto. The following search interfaces provide a convenient way to search the GND: https://explore.gnd.network/ (GND-Explorer), https://lobid.org/gnd (lobid-gnd), https://swb.bsz-bw.de/DB=2.104/ (OGND)

Hessische Systematik (see also this service)

Catalogue of Life for natural history objects

CARE: Brian Deer Classification System (BDC) for the representation of indigenous knowledge

Examples

URI	Preferred term
https://d-nb.info/standards/vocab/gnd/gnd-sc#32.1*	Agriculture (misc.), history of agriculture
https://d-nb.info/standards/vocab/gnd/gnd-sc#17.3	Material culture, folk art
https://d-nb.info/gnd/4123307-4	Grabbeigabe [eng: Grave goods <LCSH match>]
http://vocab.getty.edu/aat/300191372	drachmas
https://www.catalogueoflife.org/data/taxon/BMGVD	Mammalia
https://d-nb.info/gnd/4741325-6	Aspleniaceae (preferred term GND: Streifenfarngewächse)

Expression in LIDO v1.0

<lido:objectClassificationWrap>
     <lido:classificationWrap>
          <lido:classification lido:type="http://terminology.lido-schema.org/lido00932">
		       <lido:conceptID lido:type="http://terminology.lido-schema.org/lido00099">https://d-nb.info/gnd/4034402-2</lido:conceptID>
               <lido:term xml:lang="de">Landwirtschaft</lido:term>
          </lido:classification>
     </lido:classificationWrap>
</lido:objectClassificationWrap>

<lido:objectClassificationWrap>
	<lido:classificationWrap>
		<lido:classification lido:type="http://terminology.lido-schema.org/lido01144">    
            <lido:conceptID lido:type="http://terminology.lido-schema.org/lido00099">https://www.catalogueoflife.org/data/taxon/652YZ</lido:conceptID>
            <lido:term lido:label="Gattung/Art">Addax nasomaculatus</lido:term>
		</lido:classification>
	</lido:classificationWrap>
</lido:objectClassificationWrap>

Expression in LIDO v1.1

<lido:objectClassificationWrap>
	<lido:classificationWrap>
		<lido:classification lido:type="http://terminology.lido-schema.org/lido00932">
			<skos:Concept rdf:about="https://d-nb.info/gnd/4034402-2">
				<skos:prefLabel xml:lang="de">Landwirtschaft</skos:prefLabel>				
			</skos:Concept>
		</lido:classification>
	</lido:classificationWrap>
</lido:objectClassificationWrap>

<lido:objectClassificationWrap>
	<lido:classificationWrap>
		<lido:classification lido:type="http://terminology.lido-schema.org/lido01144">
			<skos:Concept rdf:about="https://www.catalogueoflife.org/data/taxon/652YZ">
				<skos:prefLabel xml:lang="de">Addax nasomaculatus</skos:prefLabel>
			</skos:Concept>
		</lido:classification>
	</lido:classificationWrap>
</lido:objectClassificationWrap>

Comparison with relevant standards and database models

Standard	Element name	Text/URI	Repeatable	Obligation level	Comment
German Digital Library: Metadata requirements for data provision	(No match)	Not applicable	Not applicable	Not applicable
German Digital Library LIDO application profile (DDB-LIDO)	<classification>	Text (controlled vocabulary) and optional URI	Yes	Recommended
DFG Basic Data Record	(No match)	Not applicable	Not applicable	Not applicable
DFG Practical Guidelines on Digitisation: LIDO core metadata	Classification <classification>	Text (controlled vocabulary) and/or URI	Yes	Recommended
Europeana Data Model (EDM)	<dc:subject>	Text (controlled vocabulary) and/or URI	Yes	Conditionally mandatory	In the Europeana Data Model <dc:subject> (subject keyword/classification) OR <dc:type> (object type) OR <dcterms:spatial> (keyword [place/location depicted/represented]) OR <dcterms:temporal>(keyword [time depicted/as subject]) are mandatory.
EODEM application profile	(No match)	Not applicable	Not applicable	Not applicable
digiCULT	Sachgruppe [eng.: Subject group]	Text (controlled vocabulary) and/or URI	Yes	Recommended
museum-digital	(No direct match) (Schlagwort or Bezug)	Text (controlled vocabulary) and/or URI	Yes	Not applicable	In museum-digital, there is no strict separation between "keyword" and "subject category", as required by the Minimum Record Recommendation.

ID data element

mds0003

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