Born-Digital Archives Ontology
type: Ontology
imports: protege-dc.owl
imports: LRM-schema.ttl
description: The BDA ontology models the domain of born-digital archives. BDA was created by the Information Technologies Institute (ITI) of the Centre for Research & Technology Hellas (CERTH), within the EU-funded PERICLES FP7 project. Documentation: http://mklab.iti.gr/pericles/documentation/BDA_docs.htm

L10 had input
type: AnnotationProperty
sub property of: P16 used specific object
range: D1 Digital Object
type: ObjectProperty
domain: D7 Digital Machine Event
comment: This property associates an instance of D7 Digital Machine Event with an instance of D1 Digital Object which is the input used to specify the machine action. This property is a specialisation of P16 used specific object(was used for).

L11 had output
type: AnnotationProperty
sub property of: P94 has created
range: D1 Digital Object
type: ObjectProperty
domain: D7 Digital Machine Event
comment: This property associates an instance of D7 Digital Machine Event with an instance of D1 Digital Object which is the output of the activity. This property is a specialisation of P94 has created (was created by).

L12 happened on device
type: AnnotationProperty
sub property of: P12 occurred in the presence of
range: D8 Digital Device
type: ObjectProperty
domain: D7 Digital Machine Event
comment: This property associates an instance of D7 Digital Machine Event with an object, the D8 Digital Device, which happened with, e.g a capturing event that happened on/with a digital camera, etc. This property is a specialisation of P12 occurred in the presence of (was present at).

L17 measured thing of type
type: AnnotationProperty
sub property of: P125 used object of type
range: E55 Type
type: ObjectProperty
domain: D11 Digital Measurement Event
comment: This property associates an instance of D11 Digital Measurement Event with the instance of E55 Type of object to which it applied. This property is a specialisation of P125 used object of type.

L18 has modified
type: AnnotationProperty
sub property of: P31 has modified
range: D13 Digital Information Carrier
type: ObjectProperty
domain: D7 Digital Machine Event
comment: This property identifies a Digital Information Carrier modified in a Digital Machine Event. This property is a specialisation of P31 has modified.

L19 stores
type: AnnotationProperty
sub property of: P128 carries
range: D1 Digital Object
type: ObjectProperty
domain: D13 Digital Information Carrier
comment: This property associates an instance of a D13 Digital Information Carrier with the instance of Digital Object that is stored on it. This property is a specialisation of P128 carries.

L1 digitized
type: AnnotationProperty
sub property of: P39 measured
range: E18 Physical Thing
type: ObjectProperty
domain: D2 Digitization Process
comment: This property associates an instance of D2 Digitization Process with an instance of E18 Physical Thing which is a material thing. This property is a specialisation of P39 measured (was measured by).

L20 has created
type: AnnotationProperty
sub property of: P40 observed dimension
range: D9 Data Object
type: ObjectProperty
sub property of: L11 had output
domain: D11 Digital Measurement Event
comment: This property identifies a Data Object that came into existence as a result of a D11 Digital Measurement Event. This property is a specialisation of P40 observed dimension and L11 had output.

L23 used software or firmware
type: AnnotationProperty
sub property of: P16 used specific object
range: D14 Software
type: ObjectProperty
domain: D7 Digital Machine Event
comment: This property associates an instance of D7 Digital Machine Event with the instance of D14 Software that had used. This property is a specialisation of P16 used specific object.

L29 has responsible organization
type: AnnotationProperty
sub property of: P14 carried out by
range: E40 Legal Body
type: ObjectProperty
domain: E7 Activity
comment: This property describes the participation of a Legal Body in being responsible for the outcome of a specific activity. This property is a specialisation of P14 carried out by.

L30 has operator
type: AnnotationProperty
sub property of: P14 carried out by
range: E21 Person
type: ObjectProperty
domain: E7 Activity
comment: This property describes the activity that is being operated by a person. This property is a specialisation of P14 carried out by.

L31 has starting date-time
type: AnnotationProperty
sub property of: P82a begin of the begin
range: dateTime
domain: E5 Event
type: DatatypeProperty
comment: This property allows the starting point for a D7 Digital Machine Event to be situated. This property expresses the approximation of the starting date of a time span.

L32 has ending date-time
type: AnnotationProperty
sub property of: P82b end of the end
range: dateTime
domain: E5 Event
type: DatatypeProperty
comment: This property allows the ending point for a D7 Digital Machine Event to be situated. This property expresses the approximation of the ending date of a time span.

L33 has maker
type: AnnotationProperty
range: E39 Actor
type: ObjectProperty
domain: E72 Legal Object
comment: This property identifies the maker, the actor who is responsible for the production of a device, a computer, a digital camera, any kind of a machine that has been produced. This property is a shortcut of a more fully developed path from CRM E12 Production:P108 has produced:E24 Physical Man-Made Thing. In this case, there is no need to describe the more detailed property through a production event,so L33 has maker is reccomended to be used instead.

L34 has contractor
type: AnnotationProperty
range: E40 Legal Body
type: ObjectProperty
sub property of: L29 has responsible organization
domain: E7 Activity
comment: This property describes the participation of a Legal Body in being contractor for the outcome of a specific activity. This property is a specialisation of L29_has_responsible_organization.

L35 has commissioner
type: AnnotationProperty
range: E40 Legal Body
type: ObjectProperty
sub property of: L29 has responsible organization
domain: E7 Activity
comment: This property describes the participation of a Legal Body in being commissioner for the outcome of a specific activity. This property is a specialisation of L29_has_responsible_organization.

L47 has comment
type: AnnotationProperty
sub property of: P3 has note
range: Literal
domain: E1 CRM Entity
type: DatatypeProperty
comment: This property is a specialisation of P3 has note and associates a comment with an instance of an object E1 CRM Entity.

L48 created annotation
type: AnnotationProperty
sub property of: P94 has created
range: D29 Annotation Object
type: ObjectProperty
domain: D30 Annotation Event
comment: This property identifies the D29 Annotation Object (associations) that came into existence as a result of a D30 Annotation Event. This property is a specialisation of P94 has created.

L49 is primary area of
type: AnnotationProperty
sub property of: P106i forms part of
range: D1 Digital Object
type: ObjectProperty
domain: D35 Area
comment: This property describes the association between a particular area declared in an original digital object. This property is a specialisation of P106 is composed of.

L4 has preferred label
type: AnnotationProperty
comment: This property associates an instance of E1 Entity with an instance of resource used as a preferred lexical label. This property is a specialisation of rdf schema label.
sub property of: label
range: Literal
domain: E1 CRM Entity

L50 is propagated area of
type: AnnotationProperty
sub property of: P106i forms part of
range: D1 Digital Object
type: ObjectProperty
domain: D35 Area
comment: This property describes the association between an area and the digital object to which it is propagated. This property is a specialisation of P106 is composed of.

L51 has first name
type: AnnotationProperty
comment: This property defines a personal name used to identify a person.
sub property of: label
range: Literal
domain: D21 Person Name

L52 has last name
type: AnnotationProperty
comment: This property defines the last name used to identify a person. This property is a specialisation of L4 has preferred label.
sub property of: L4 has preferred label
range: Literal
domain: D21 Person Name

L53 is not uniquely identified by
type: AnnotationProperty
comment: This property describes a non unique identification applied to E1 CRM Entity.
sub property of: label
range: Literal
domain: E1 CRM Entity

L54 is same-as
type: AnnotationProperty
range: E1 CRM Entity
domain: E1 CRM Entity
type: DatatypeProperty
comment: This property describes the association kind of "same as" between objects. It is used to declare that two or more objects are exactly the same.

L54i is same-as
type: AnnotationProperty
range: E1 CRM Entity
domain: E1 CRM Entity
type: DatatypeProperty
comment: This property describes the association kind of "same as" between objects. It is used to declare that two or more objects are exactly the same.

L55 has inventory no
type: AnnotationProperty
comment: This property records the inventory number that was used to identify an instance of E1 CRM Entity at the time this property was record. This property is a specialisation of L53F is not uniquely identified by.
sub property of: L53 is not uniquely identified by
range: Literal
domain: E1 CRM Entity

L56 has pixel width
type: AnnotationProperty
sub property of: P90 has value
range: Literal
domain: D9 Data Object
type: DatatypeProperty
comment: This property records the pixel width of the data object; it approximates a dimension that is part of the image data analysis.This property is a specialisation of P90 has value.

L57 has pixel height
type: AnnotationProperty
sub property of: P90 has value
range: Literal
domain: D9 Data Object
type: DatatypeProperty
comment: This property records the pixel height of the data object; it approximates a dimension that is part of the image data analysis.This property is a specialisation of P90 has value.

L59 has serial number
type: AnnotationProperty
comment: This property records the serial number that was assigned to identify an instance of E22 Man Made Object. This property is a specialisation of L53 is not uniquely identified by.
sub property of: L53 is not uniquely identified by
range: Literal
domain: E22 Man-Made Object

L60 documents
type: AnnotationProperty
sub property of: P140 assigned attribute to
range: E1 CRM Entity
domain: D2 Digitization Process
type: DatatypeProperty
comment: This property describes the CRM Entities documented by instances of Digitization Processes. This property is a specialisation of P140 assigned attribute to.

L61 was ongoing at
type: AnnotationProperty
sub property of: P81a end of the begin
sub property of: P81b begin of the end
range: dateTime
domain: E5 Event
type: DatatypeProperty
comment: This property describes the minimum period of time covered by a digital machine event. It identifies the minimum extent of the event. This property is a specialisation of P81 ongoing throughout.

accesses resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Access Activity
range: Resource

accessions resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Accessioning Activity
range: Resource

acquires resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Acquisition Activity
range: Resource

appraises resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Appraisal Activity
range: Resource

catalogues resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Cataloguing Activity
range: Resource

creates resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Creation Activity
range: Resource

destroys resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Destruction Activity
range: Resource

has checksum
type: ObjectProperty
domain: DigitalResource
range: Checksum

has date
type: ObjectProperty
domain: Resource
range: E50 Date

has duration
type: ObjectProperty
sub property of: has size
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Resource
range: Size

has file size
type: ObjectProperty
sub property of: has size
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Resource
range: Size

has size
type: ObjectProperty
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Resource
range: Size

ingests resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Ingest Activity
range: Resource

loans resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Loan Activity
range: Resource

normalises resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Normalisation Activity
range: Resource

preserves resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Preservation Activity
range: Resource

redacts resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Redaction Activity
range: Resource

stores resource
type: ObjectProperty
sub property of: targets resource
type: AsymmetricProperty
type: IrreflexiveProperty
domain: Storage Activity
range: Resource

targeted by activity
type: ObjectProperty
inverse of: targets resource
domain: Resource
range: Activity

targets resource
type: ObjectProperty
domain: Activity
range: Resource

L13 used parameters
type: ObjectProperty
sub property of: L10 had input
domain: D10 Software Execution
range: D1 Digital Object
comment: This property associates an instance of D10 Software Execution with a digital object used as a parameter during the process.This property is a specialisation of L1O had input (was input of).

L14 transferred
type: ObjectProperty
sub property of: L10 had input
sub property of: L11 had output
domain: D12 Data Transfer Event
range: D1 Digital Object
comment: This property identifies a digital object transferred by a D12 Data Transfer Event. This property is a specialisation of L11 had output (was output of).

L15 has sender
type: ObjectProperty
sub property of: L12 happened on device
domain: D12 Data Transfer Event
range: D8 Digital Device
comment: This property identifies a digital device used as a medium on which data are transferred through a D12 Data Transfer Event.

L16 has receiver
type: ObjectProperty
sub property of: L12 happened on device
domain: D12 Data Transfer Event
range: D8 Digital Device
comment: This property identifies a digital device used as a medium to receive data through a D12 Data Transfer Event.

L21 used as derivation source
type: ObjectProperty
sub property of: L2 used as source
domain: D3 Formal Derivation
range: D1 Digital Object
comment: This property associates an instance of a D3 Formal Derivation with the instance of D1 Digital Object that is used as a derivation source.

L22 created derivative
type: ObjectProperty
sub property of: L11 had output
domain: D3 Formal Derivation
range: D1 Digital Object
comment: This property associates an instance of D3 Formal Derivation with the Digital Object it used to create a version of. This property is a specialisation of L11 had output.

L24 created logfile
type: ObjectProperty
sub property of: L11 had output
domain: D10 Software Execution
range: D1 Digital Object
comment: This property identifies the logfile that was created by a D10 Software Execution in order to record all the activities in the system.

L2 used as source
type: ObjectProperty
sub property of: L10 had input
domain: D10 Software Execution
range: D1 Digital Object
comment: This property associates an instance of D10 Software Execution with an instance of D1 Digital Object which is used as a source, a software essential for the performance. This property is a specialisation of L10F had input (was input of).

at time
type: DatatypeProperty
range: dateTime

has absolute path
type: DatatypeProperty
domain: Digital Location
range: string

has access conditions
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has access status
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has accession number
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has accruals
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has admin history
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has architecture
type: DatatypeProperty
domain: Operating System
range: string

has biographical history
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has checksum string
type: DatatypeProperty
domain: Checksum
range: string
comment: Checksums are often used to verify data integrity.

has custodian history
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has description
type: DatatypeProperty
domain: Resource
range: string

has extent check
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string
comment: The property is used to identify and describe the physical quantity of the unit of description in order to inform the user how much material they should expect at the level of description.

has file format
type: DatatypeProperty
domain: Class
  union of: D14 Software
  union of: D1 Digital Object
  union of: DigitalResource
  union of: SoftwareAgent
range: string

has finding aids
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has format
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string
comment: Format is mandatory at item level

has level of description
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: Datatype
  one of: File
  one of: Fonds
  one of: Item
  one of: Series
  one of: Sub-fonds
  one of: Sub-series

has note
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has number of files
type: DatatypeProperty
range: integer

has repository
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has scope
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has source of acquisition
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string
comment: It is usually in the format: Presented by [name of donor] [year] or Purchased [year]

has system of arrangement
type: DatatypeProperty
domain: Class
  union of: File
  union of: Fonds
  union of: Item
  union of: Series
range: string

has title
type: DatatypeProperty
domain: Resource
range: string

has unit
type: DatatypeProperty
domain: Size
range: string

has value
type: DatatypeProperty
domain: Size
range: string

has version
type: DatatypeProperty

value
type: DatatypeProperty
range: string

L43 annotates
type: DatatypeProperty
domain: D29 Annotation Object
range: E1 CRM Entity
comment: This property describes the associations between objects or areas of objects of the RI, with other objects or regions or persons, places, events..

Access Activity
type: Class
equivalent class: Restriction
  on property: accesses resource
  some values from: Resource
subclass of: Activity
comment: The process by which archival material is made available for use, in accordance with relevant restrictions depending on user and form of access, including loan to external organisations.

Accessioning Activity
type: Class
equivalent class: Restriction
  on property: accessions resource
  some values from: Resource
subclass of: Activity
comment: The process by which an archive takes physical and legal custody of a collection.

Acquisition Activity
type: Class
equivalent class: Restriction
  on property: acquires resource
  some values from: Resource
subclass of: E8 Acquisition
subclass of: Activity
comment: The acquisition of archival material by an institution for use by its user community.

Appraisal Activity
type: Class
equivalent class: Restriction
  on property: appraises resource
  some values from: Resource
subclass of: Activity
comment: Evaluation of potential acquisitions in relation to an archive’s collection policy or technical evaluation of material in relation to an institution’s ability to support/process material

Archivist
type: Class
subclass of: Staff

Art Historian Researcher
type: Class
subclass of: Researcher

Artist
type: Class
subclass of: Creator

Author
type: Class
subclass of: Creator

Cataloguing Activity
type: Class
equivalent class: Restriction
  on property: catalogues resource
  some values from: Resource
subclass of: Activity
comment: The arrangement and description of an archival collection, to establish intellectual control and in preparation for access.

Checksum
type: Class
subclass of: Description
comment: Subclasses of Checksum are available checksum functions

Company
type: Class
subclass of: Group

Computer
type: Class
subclass of: Equipment

Conservator
type: Class
subclass of: Staff

Creation Activity
type: Class
equivalent class: Restriction
  on property: creates resource
  some values from: Resource
subclass of: E65 Creation
subclass of: Activity
comment: The activity of creating a resource

Creator
type: Class
subclass of: Person

Data Dependency
type: Class
subclass of: Dependency
comment: A dependency from some data or piece of information

Department
type: Class
subclass of: Group

Destruction Activity
type: Class
equivalent class: Restriction
  on property: destroys resource
  some values from: Resource
subclass of: E6 Destruction
subclass of: Activity
comment: The activity of destroying a resource

Digital Location
type: Class
subclass of: Location

Digital Video
type: Class
subclass of: Item
comment: A digital video file

Email
type: Class
subclass of: Item

Equipment
type: Class
subclass of: ConcreteResource
comment: A tangible piece of equipment

File
type: Class
subclass of: AgregatedResource
comment: From ISAD(G) Definitions: An organized unit of documents grouped together either for current use by the creator or in the process of archival arrangement, because they relate to the same subject, activity, or transaction. A file is usually the basic unit within a record series.

Fonds
type: Class
subclass of: AgregatedResource
comment: From ISAD(G) Definitions: The whole of the records, regardless of form or medium, organically created and/or accumulated and used by a particular person, family, or corporate body in the course of that creator's activities and functions.

Funding Body
type: Class
subclass of: Group

Gallery
type: Class
subclass of: Group

Group
type: Class
equivalent class: E40 Legal Body
equivalent class: E74 Group
subclass of: HumanAgent

HDD
type: Class
subclass of: Storage Device
subclass of: D13 Digital Information Carrier
comment: A Hard Disc Drive device

Hardware Dependency
type: Class
equivalent class: Class
  intersection of: Dependency
  intersection of: Restriction
    on property: to
    some values from: Equipment
subclass of: Dependency
comment: A dependency from some piece of hardware

Ingest Activity
type: Class
equivalent class: Restriction
  on property: ingests resource
  some values from: Resource
subclass of: Activity
comment: The process by which an archive collection is packaged with metadata and moved to managed storage.

Item
type: Class
subclass of: D1 Digital Object
subclass of: DigitalResource
comment: From ISAD(G) Definitions: The smallest intellectually indivisible archival unit, e.g., a letter, memorandum, report, photograph, sound recording.

LTO
type: Class
subclass of: Storage Device
comment: A Linear Tape-Open storage device

Copyright and Legal Department
type: Class
subclass of: Department

Letter
type: Class
subclass of: Item

Loan Activity
type: Class
equivalent class: Restriction
  on property: loans resource
  some values from: Resource
subclass of: Activity
comment: The activity of loaning a resource

MD5Checksum
type: Class
subclass of: Checksum

Museum Curator
type: Class
subclass of: Staff

Normalisation Activity
type: Class
equivalent class: Restriction
  on property: normalises resource
  some values from: Resource
subclass of: Activity
comment: The activity of normalising a resource

Operating System
type: Class
subclass of: D14 Software
subclass of: SoftwareAgent

Optical Disc
type: Class
subclass of: Storage Device
subclass of: D13 Digital Information Carrier
comment: An Optical Disc (e.g. DVD, CD, etc)

Person
type: Class
equivalent class: E21 Person
subclass of: HumanAgent

Photograph
type: Class
subclass of: Item

Physical Location
type: Class
subclass of: Location

Picture Researcher
type: Class
subclass of: Researcher

Preservation Activity
type: Class
equivalent class: Restriction
  on property: preserves resource
  some values from: Resource
subclass of: Activity
comment: The activity of preserving a resource

Program
type: Class
subclass of: D14 Software
subclass of: SoftwareAgent

Provenance Researcher
type: Class
subclass of: Researcher

Redaction Activity
type: Class
equivalent class: Restriction
  on property: redacts resource
  some values from: Resource
subclass of: Activity
comment: The activity of redacting a resource

Researcher
type: Class
subclass of: Person

SHA-1Checksum
type: Class
subclass of: Checksum

SHA-2Checksum
type: Class
subclass of: Checksum

Series
type: Class
equivalent class: Restriction
  on property: has level of description
  has value: Series
subclass of: AgregatedResource
comment: From ISAD(G) Definitions: Documents arranged in accordance with a filing system or maintained as a unit because they result from the same accumulation or filing process, or the same activity; have a particular form; or because of some other relationship arising out of their creation, receipt, or use. A series is also known as a records series.

Size
type: Class
subclass of: Description
comment: The size of a resource in any measurement unit (e.g. dimensions, duration, etc)

Software Dependency
type: Class
equivalent class: Class
  intersection of: Dependency
  intersection of: Restriction
    on property: to
    some values from: SoftwareAgent
subclass of: Dependency
comment: A dependency from some piece of software

Staff
type: Class
subclass of: Person

Storage Activity
type: Class
equivalent class: Restriction
  on property: stores resource
  some values from: Resource
subclass of: Activity
comment: The activity of storing a resource

Storage Device
type: Class
subclass of: Equipment
subclass of: D8 Digital Device
comment: A device capable of storing data

Technician
type: Class
subclass of: Staff

Video Cassette
type: Class
subclass of: Storage Device

D10 Software Execution
type: Class
subclass of: D7 Digital Machine Event
comment: This class comprises events by which a digital device runs a software program or a series of computing operations on a digital object as a single task, which is completely determined by its digital input, the software and the generic properties of the device.

D11 Digital Measurement Event
type: Class
subclass of: E16 Measurement
subclass of: D7 Digital Machine Event
comment: This class comprises actions measuring physical properties using a digital device, that are determined by a systematic procedure and creates an instance of D9 Data Object, which is stored on an instance of D13 Digital Information Carrier. In contrast to instances of D10 Software Execution, environmental factors have an intended influence on the outcome of an instance of D11 Digital Measurement Event. Measurement devices may include running distinct software, such as the RAW to JPEG conversion in digital cameras. In this case, the event is regarded as instance of both classes, D10 Software Execution and D11 Digital Measurement Event.

D12 Data Transfer Event
type: Class
subclass of: D7 Digital Machine Event
comment: This class comprises events that transfer a digital object from one digital carrier to another. Normally, the digital object remains the same. If in general or by observation the transfer implies or has implied some data corruption, the change of the digital objects may be documented distinguishing input and output rather than instantiating the property L14 transferred (was transferred by).

D13 Digital Information Carrier
type: Class
subclass of: E84 Information Carrier
comment: This class comprises all instances of E84 Information Carrier that are explicitly designed to be used as persistent digital physical carriers of instances of D1 Digital Object. A D13 Digital Information Carrier may or may not contain information, e.g., an empty diskette.

D14 Software
type: Class
subclass of: D1 Digital Object
comment: This class comprises software codes,computer programs,procedures, and functions that are used to operate a system of digital objects.

D1 Digital Object
type: Class
subclass of: E73 Information Object
comment: This class comprises identifiable immaterial items that can be represented as sets of bit sequences, such as data sets, e-texts, images, audio or video items, software, etc., and are documented as single units. Any aggregation of instances of D1 Digital Object into a whole treated as single unit is also regarded as an instance of D1 Digital Object. This means that for instance, the content of a DVD, an XML file on it, and an element of this file, are regarded as distinct instances of D1 Digital Object, mutually related by the P106 is composed of (forms part of) property. A D1 Digital Object does not depend on a specific physical carrier, and it can exist on one or more carriers simultaneously.

D21 Person Name
type: Class
subclass of: E82 Actor Appellation
comment: This class comprises the proper noun name that identifies a person that acts as an entity.

D29 Annotation Object
type: Class
subclass of: E89 Propositional Object
comment: This class comprises objects that make propositions about other artefacts. Instances of this class are not the attributes themselves, by which things are annotated, but represent the connection between the concepts related in a proposition, and the activities of creation, modification and deletion.

D2 Digitization Process
type: Class
subclass of: D11 Digital Measurement Event
comment: This class comprises events that result in the creation of instances of D9 Data Object that represent the appearance and/or form of an instance of E18 Physical Thing such as paper documents, statues, buildings, paintings, etc. A particular case is the analogue-to-digital conversion of audiovisual material. This class represents the transition from a material thing to an immaterial representation of it. The characteristic subsequent processing steps on digital objects are regarded as instances of D3 Formal Derivation.

D30 Annotation Event
type: Class
subclass of: E65 Creation
comment: This class comprises events that describe the creation of associations (Annotation Objects) between objects or areas of objects of the Repository, with other objects or regions or persons, places, events. It is the event that creates the Annotation Object.

D35 Area
type: Class
subclass of: E26 Physical Feature
subclass of: D1 Digital Object
comment: This class describes a part (of any shape or size) of interest in basically any media object stored in the Object Repository, i.e., a text, an image, a video or a 3D model. It points to content consisting of just a portion or area of a file. In some contexts, however, the area can also point to content represented by an integral (i.e., proper) file. It is equal to the METS AREA element

D3 Formal Derivation
type: Class
subclass of: D10 Software Execution
comment: This class comprises events that result in the creation of a D1 Digital Object from another one following a deterministic algorithm, such that the resulting instance of digital object shares representative properties with the original object. In other words, this class describes the transition from an immaterial object referred to by property L21 used as derivation source (was derivation source for) to another immaterial object referred to by property L22 created derivative (was derivative created by) preserving the representation of some things but in a different form. Characteristic examples are colour corrections, contrast changes and resizing of images.

D7 Digital Machine Event
type: Class
subclass of: E11 Modification
subclass of: E65 Creation
comment: This class comprises events that happen on physical digital devices following a human activity that intentionally caused its immediate or delayed initiation and results in the creation of a new instance of D1 Digital Object on behalf of the human actor. The input of a D7 Digital Machine Event may be parameter settings and/or data to be processed. Some D7 Digital Machine Events may form part of a wider E65 Creation event. In this case, all machine output of the partial events is regarded as creation of the overall activity.

D8 Digital Device
type: Class
subclass of: E22 Man-Made Object
comment: This class comprises identifiable material items such as computers, scanners, cameras, etc. that have the capability to process or produce instances of D1 Digital Object.

D9 Data Object
type: Class
subclass of: E54 Dimension
subclass of: D1 Digital Object
comment: This class comprises instances of D1 Digital Object that are the direct result of a digital measurement or a formal derivative of it, containing quantitative properties of some physical things or other constellations of matter.