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Digital preservation metadata
Why is it needed and what does
it look like?
Angela Dappert
The British Library
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
What is digital preservation metadata?
� Digital preservation metadata = Metadata to ensure long-term accessibility of digital resources
� Digital objects must be self-descriptive
� Must be able to describe, manage and discover independently from the systems that were used to create them
XML (machine and human readable)
17 October 20162
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
DP metadata supports preservation goals
Preservation Pyramid (from Priscilla Caplan)
17 October 20163
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Domain
17 October 20164
Born digital
Digitized
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Technology dependence
No direct access
• Not self-descriptive
• Complex formats
Complex environments
digital
17 October 20165
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Technology dependence
Metadata:• Format information• Rendering information
• Software• Hardware• Other dependencies:
schemas, style sheets, encodings, etc.
17 October 20166
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Complex structures
Metadata• Physical structural relationships
• Embedded files• File sequence
• Logical structural relationships
Abstract.html
Abstract.gif
Thumb.jpg
17 October 20167
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Complex structures
Metadata• Physical structural relationships
• Embedded files• File sequence
• Logical structural relationships
Content file 1
Content file 2
Content file 3
17 October 20168
Content file 136
Content file 137
Content file 138
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Complex structures
Metadata• Physical structural relationships
• Embedded files• File sequence
• Logical structural relationships
Title Page
TableOfcontents
Page 1
17 October 20169
Page 134
Page 135
Page 136
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Supporting features
17 October 201610
Metadata:Semantic information for the designated community
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Supporting features
17 October 201611
Metadata:Semantic information for the designated community
Example uses and queries
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Context descriptions
Metadata: Context descriptions
• Original source
• Related items (e.g. migration source)
recto
verso
recto
17 October 201612
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Obsolescence
-> object transformations
� Pre-emptive preservation actions
� Bit migration
� Content migration
� Replacing part of the rendering stack
� Forensic transformation actions
17 October 201613
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Obsolescence / object transformations
Goals Metadata
� Avoid rights violations
� Prove authenticity
� Rights information for preservation actions during copyright / license period
� Provenance metadata:
� History of all actions performed on the resource
� History of custodianship
17 October 201614
�Events�Dates�Changes and decisions�Agents (decision maker + tools used)
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Obsolescence / object transformations
Goals Metadata
� Manage potential loss of object characteristics
� Demonstrate degree of authenticity
� Explain decisions
� Significant characteristics
� Lost characteristics
� Business rules (policy, strategy) guiding preservation actions
17 October 201615
� Documentation
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Mutability
Goals Metadata
� Viability: the object is readable
� Fixity: the object is unchanged
� Data carrier metadata
� Type of medium
� Its preservation characteristics
� Age of medium
� Date of recording
� Usage patterns
� Checksums, message digests, hash function
� Event creating them� Algorithms creating them
� Date/time
� Originator
17 October 201616
� Intentional or accidental change
� Decay: rapid and potentially complete
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Mutability
Goals Metadata
� Integrity: the object is whole and unimpaired
� Authenticity: the object is what it purports to be
� Event information for format identification and validation events (= provenance)
� Structural metadata
� Digital signatures
� Access rights
17 October 201617
� Intentional or accidental change
� Decay: rapid and potentially complete
What is PREMIS?
Angela Dappert
The British Library
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
The PREMIS standard
� International de-facto standard for metadata to support the preservation of digital objects and ensure their long-term usability.
� Information you need to know for preserving digital objectsPreservation Metadata: Implementation Strategies
� Developed by an international team of experts.
� Implemented in digital preservation projects around the world.
� Incorporated into commercial and open-source digital preservation tools and systems.
17 October 201619
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
The PREMIS standard
� Data Dictionary (PREMIS 3.0)� http://www.loc.gov/standards/premis/v3/premis-3-0-final.pdf
� Version 3 – major release
� XML schema v3.0� http://www.loc.gov/standards/premis/premis.xsd
� OWL ontology
� Supporting documentation
17 October 201620
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Activities
� The PREMIS Editorial Committee
� Coordinates revisions and implementation of the standard
� PREMIS Implementors' Group forum ([email protected])
� Email message to [email protected]: Text: subscribe pig <your name>
� PREMIS Implementation Fair (PIF)
� User group meetings (@iPres)
17 October 201621
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Scope
� What PREMIS DD is:
� Common data model for organizing/thinking about preservation metadata
� Standard for exchanging information packages between repositories
� Implementable
� Technically neutral
� Core metadata
17 October 201622
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Scope
� What PREMIS DD is not:
� Out-of-the-box solution
� All needed metadata
� Lifecycle management of objects outside repository- increasing support for integration with outside
� Rights management standard- strong support for rights statements
17 October 201623
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Scope
� What PREMIS DD is not:
� It is not limited to or customized for archives and libraries.
� It does not dictate that you need to use every feature.
� But you should examine for yourself which features you can knowingly ignore.
� It is not only useful if you implement metadata. You can use it to assess the metadata quality of systems you use.
� Everyone modeling the digital landscape can and should use the high-level modeling feature.
17 October 201624
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Example: Object Entity semantic units
� 1.1 object Identifier
� 1.2 object Category
� 1.3 preservation Level
� 1.4 significant Properties
� 1.5 object Characteristics
� 1.6 original Name
� 1.7 storage
� 1.8 environment
� 1.9 signature Information
17 October 201625
Object
1.10 relationship
1.11 linkingEventIdentifier
1.13 linkingRightsStatementIdentifier
1.5 objectCharacteristics
1.5.1 compositionLevel
1.5.2 fixity
1.5.3 size
1.5.4 format
1.5.5 creatingApplication
1.5.6 inhibitors
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
1.5 objectCharacteristics
1.5.1 compositionLevel
1.5.2 fixity
1.5.3 size
1.5.4 format
1.5.5 creatingApplication
1.5.6 inhibitors
Sample Data Dictionary Entry
17 October 201626
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
17 October 2016
Tayloring PREMIS to needs
� Evolving metadata � Increasing experience ensuring the longevity of digital objects
� Changing future technical possibilities
� Changing future legal framework
� Tayloring solutions� Varying needs
� Content-types
� Institutional policies
� Intended use
� Off-the-shelf (OS / commercial )or custom-built
• Predefined metadata profiles• Out-of-the-box tools
Off-the-shelf systems
• Metadata profiles and tools
Configured, extended, adapted
• Metadata profiles and tools
Custom-built systems
27
From Version 2.0
to Version 3.0
Angela Dappert
The British Library
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
PREMIS: From V2 to V3
� Improving PREMIS based on user needs
� Add preservationLevelType semantic unit
� Add agentVersion semantic unit
� Add “unknown” values
� Add eventDetailInformation semantic unit
� Add authority for controlled vocabulary
� Make Intellectual Entity an Object category
� Make Environments independent Objects
� Add physical Objects
� Update conformance statement
17 October 201629
minor
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add preservationLevelType semantic unit
� 1.3 preservationLevel
�
� 1.3.1 preservationLevelValue
� 1.3.2 preservationLevelRole
� 1.3.3 preservationLevelRationale
� 1.3.4 preservationLevelDateAssigned
17 October 201630
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add preservationLevelType semantic unit
� 1.3 preservationLevel
� 1.3.1 preservationLevelType
� 1.3.2 preservationLevelValue
� 1.3.3 preservationLevelRole
� 1.3.4 preservationLevelRationale
� 1.3.5 preservationLevelDateAssigned
� Associate type of preservation function with preservation level.
17 October 201631
� objectIdentifier
� objectIdentifierType: ARK
� objectIdentifierValue: ark:/9999/c1
� objectCategory: file
� preservationLevel
� preservationLevelType: Bit preservation
� preservationLevelValue: medium
� preservationLevel
� preservationLevelType: Functional preservation
� preservationLevelValue: migration
� objectCharacteristics
� compositionLevel: 0
� size: 726970368
� format
� formatDesignation
� format name: application/vnd.ms-excel17 October 201632
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add agentVersion semantic unit
� If agentType is software, � agentVersion can be used to refine agentName.
� 3.1 agentIdentifier � 3.2 agentName � 3.3 agentType
� 3.4 agentNote � 3.5 agentExtension � 3.6 linkingEventIdentifier � 3.7 linkingRightsStatementIdentifier� .
17 October 201633
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add agentVersion semantic unit
� If agentType is software, � agentVersion can be used to refine agentName.
� 3.1 agentIdentifier� 3.2 agentName� 3.3 agentType� 3.4 agentVersion� 3.5 agentNote� 3.6 agentExtension� 3.7 linkingEventIdentifier� 3.8 linkingRightsStatementIdentifier� 3.9
17 October 201634
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add agentVersion semantic unit
� If agentType is software, � agentVersion can be used to refine agentName.
� 3.1 agentIdentifier � 3.2 agentName � 3.3 agentType � 3.4 agentVersion � 3.5 agentNote � 3.6 agentExtension � 3.7 linkingEventIdentifier � 3.8 linkingRightsStatementIdentifier � 3.9 linkingEnvironmentIdentifier
17 October 201635
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Unknown compositionLevel and format
compositionLevel and format:
� A value of unknown addedif the information is not available.
17 October 201636
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add eventDetailInformation semantic unit .
� 2.1 eventIdentifier
� 2.2 eventType
� 2.3 eventDateTime
� 2.4 eventDetail
� 2.5 eventOutcomeInformation
� 2.6 linkingAgentIdentifier
� 2.7 linkingObjectIdentifier
17 October 201637
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add eventDetailInformation semantic unit .
� 2.1 eventIdentifier
� 2.2 eventType
� 2.3 eventDateTime
� 2.4 eventDetailInformation
� 2.4.1 eventDetail
� 2.4.2 eventDetailExtension
� 2.5 eventOutcomeInformation
� 2.6 linkingAgentIdentifier
� 2.7 linkingObjectIdentifier
17 October 201638
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
PREMIS: From V2 to V3
� Improving PREMIS based on user needs
� Add preservationLevelType semantic unit
� Add agentVersion semantic unit
� Add “unknown” values
� Add eventDetailInformation semantic unit
� Add authority for controlled vocabulary
� Make Intellectual Entity an Object category
� Make Environments independent Objects
� Add physical Objects
� Update conformance statement
17 October 201639
minor
bonus
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
� eventIdentifier: eventIdentifierType: UUIDeventIdentifierValue: 908985d3-9600-4da4-a7e7-c6e9508bf24c
eventType: validation
� eventDateTime: 2014-07-03T23:18:19eventDetailInformation:
eventDetail: program="Jhove"; version="1.5"eventOutcomeInformation:
eventOutcome: faileventOutcomeDetail:
eventOutcomeDetailNote: format="JPEG"; version="1.02"; result="Not well-formed“
capturecompressioncreationdeaccessiondecompressiondecryptiondeletiondigital signature validationfixity checkingestionmessage digest calculationmigrationnormalizationreplicationvalidationvirus check
authority="premisEventType" authorityURI= "http://id.loc.gov/vocabulary/preservation/eventType.html" valueURI= "http://id.loc.gov/vocabulary/preservation/eventType/val.html
Implementation specific change:
Add authority for controlled vocabulary
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
PREMIS: From V2 to V3
� Improving PREMIS based on user needs
� Add preservationLevelType semantic unit
� Add agentVersion semantic unit
� Add “unknown” values
� Add eventDetailInformation semantic unit
� Add authority for controlled vocabulary
� Make Intellectual Entity an Object category
� Make Environments independent Objects
� Add physical Objects
� Update conformance statement
17 October 201641
major
minor
bonus
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Make Intellectual Entity an Object category
Event
Agent
Rights
Intellectual
Entity
V2:• Assumed to be
held in a container metadata schema
• No Intellectual Entity semantic units
• Exception: identifier to enable linking to a description
• PREMIS Objects link to it.
• A set of content that is considered a single intellectual unit for purposes of management and description
• For example, a particular book, map, photograph, or database.
ObjectRepresentation
File
Bitstream
17 October 201642
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Make Intellectual Entity an Object category
Event
Agent
Rights
V3:• Possibility to
describe preservation aspects of intellectual entities
• Same semantic units as Representations
ObjectRepresentation
File
Bitstream
Intellectual Entity
Bitstream
Intellectual Entity
Representation
File
Bitstream
17 October 201643
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Make Intellectual Entity an Object category
� Relate to PREMIS Events and RightsStatements.
� Support structural and derivative relationships with Objects. E.g.record logical containment between an article and an issue
� Represent an aggregate, such as a collection, FRBR work, FRBR expression, fonds or series.
� Capture versioning information and metadata update events at the Intellectual Entity level
� Associate business requirements with them.
� Significant characteristics, risk definitions, guidelines for preservation actions, etc..
17 October 201644
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Make Environments independent Objects
� What is needed to render or use an object
� Operating system
� Application software
� Hardware
� Computing resources
� A high-level data model
� No detailed characteristics specific to an environment type
17 October 201645
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
File File 2relationshipType: dependencyrelationshipSubType: requires
Software application
Operating system
Hardware architecture
Hardware peripheral
Software driver
Software library
Example: Environment stack and
dependency relationships
• Modularised environment aggregates as a network
• Re-usable and distributed environment descriptions
• across different Objects• across repositories and
registries
File 1
RepositoryRepository
RepositoryRepository
Registry 1Registry 1
Registry 2Registry 2
17 October 201646
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Data Model in PREMIS V2
17 October 201647
Object (including
Environment semantic
unit container)
Event
Agent
Rights
Intellectual
Entity
Environment
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Data Model in PREMIS V3
17 October 201648
Object Environment
Event
Agent
Rights
identifiers
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
relationshipType: structuralrelationshipSubType: represents
Intellectual Entity
Representation
File
Bitstream
Intellectual Entity
Representation File
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
represents =relationshipType: structuralrelationshipSubType: represents
FileContent Object
Intellectual Entityhardware
Intellectual Entityoperating system
Intellectual Entitysoftware application
File ObjectISO image
File Objectexecutable file
represents represents
requires
Example:
An object and its rendering environment
requires =relationshipType: dependencyrelationshipSubType: requires
represents
Intellectual Entityfor content Object
17 October 201650
17 October 201651
1. Object to environment - specify computational context
2. environment to Object - documentation, specifications, surrogates
3. environment to environment - inclusion, dependency, derivation,other
4. environment is an Object – preserved software source code
5. Agent to Environment - role of an Agent
6. environment to Event - environment specific Events (provenance)
7. environment to RightsStatement - software license, policy
“Object”: here a traditional content Object
2
Event
Agent
Rights
5
7
6
3
1
identifiers
4Object Environment
New relationships
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Structural object relationships
Intellectual Entity
RepresentationFile
Bitstream
represents
represents
represents
is included in
is included in
is included in
is part of
is part of
is part of
is part of
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Expanded relationship types
� deploys
� Requires
� is Compatible With
� has Source
� Generalizes
� documents
� supersedes
� emulates
� includes
� Represents
� has Part
� has Sibling
� has Root
� is Deployed On
� is Required By
� is Source Of
� specializes
� is Documented In
� is Superseded By
� is Emulated By
� is Included In
� is Represented By
� is Part Of
17 October 201653
� Dependency
� .
� .
� Derivation
� Logical
� Reference
� Replacement
� .
� Structural
� .
� .
� .
� .
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Semantic units only applicable to
environment Intellectual Entities� 1.9 environmentFunction
� environmentFunctionType
� environmentFunctionLevel
� 1.10 environmentDesignation� environmentName
� environmentVersion
� environmentOrigin
� environmentDesignationNote
� environmentDesignationExtension
� 1.11 environmentRegistry� environmentRegistryName
� environmentRegistryKey
� environmentRegistryRole
� 1.12 environmentExtension
� 1.13 relationship …� relatedEnvironmentPurpose
� relatedEnvironmentCharacteristic
objectIdentifierobjectIdentifierType: ARKobjectIdentifierValue: ark:/9999/b1
objectCategory: intellectual entityenvironmentFunction
environmentFunctionType: software environmentFunctionLevel: 1
environmentFunctionenvironmentFunctionType: operating systemenvironmentFunctionLevel: 2
XP Professional, Service Pack 3
17 October 201654
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Semantic units only applicable to
environment Intellectual Entities� 1.9 environmentFunction
� environmentFunctionType
� environmentFunctionLevel
� 1.10 environmentDesignation� environmentName
� environmentVersion
� environmentOrigin
� environmentDesignationNote
� environmentDesignationExtension
� 1.11 environmentRegistry� environmentRegistryName
� environmentRegistryKey
� environmentRegistryRole
� 1.12 environmentExtension
� 1.13 relationship …� relatedEnvironmentPurpose
� relatedEnvironmentCharacteristic
objectCategory: intellectual entityenvironmentFunction
environmentFunctionType: softwareenvironmentFunctionLevel: 1
environmentFunctionenvironmentFunctionType: operating systemenvironmentFunctionLevel: 2
environmentDesignationenvironmentName: Windows XP ProfessionalenvironmentVersion: Service Pack 3environmentDesignationNote:
maintenance deadline: 2014-04
17 October 201655
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Semantic units only applicable to
environment Intellectual Entities
17 October 201656
� 1.9 environmentFunction � environmentFunctionType
� environmentFunctionLevel
� 1.10 environmentDesignation� environmentName
� environmentVersion
� environmentOrigin
� environmentDesignationNote
� environmentDesignationExtension
� 1.11 environmentRegistry� environmentRegistryName
� environmentRegistryKey
� environmentRegistryRole
� 1.12 environmentExtension
� 1.13 relationship …� relatedEnvironmentPurpose
� relatedEnvironmentCharacteristic
objectCategory: intellectual entityenvironmentFunction
environmentFunctionType: softwareenvironmentFunctionLevel: 1environmentFunction
environmentFunctionType: operating system environmentFunctionLevel: 2environmentDesignation
environmentName: Windows XP ProfessionalenvironmentVersion: Service Pack 3
environmentRegistryenvironmentRegistryName: PRONOMenvironmentRegistryKey: x-sfw/8environmenttRegistryRole: identity
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Semantic units only applicable to
environment Intellectual Entities� 1.9 environmentFunction
� environmentFunctionType
� environmentFunctionLevel
� 1.10 environmentDesignation� environmentName
� environmentVersion
� environmentOrigin
� environmentDesignationNote
� environmentDesignationExtension
� 1.11 environmentRegistry� environmentRegistryName
� environmentRegistryKey
� environmentRegistryRole
� 1.12 environmentExtension
� 1.13 relationship …� relatedEnvironmentPurpose
� relatedEnvironmentCharacteristic Content Object
relationshipType: dependencyrelationshipSubType: requiresrelatedEnvironmentPurpose: renderrelatedEnvironmentCharacteristic: recommendedrelatedObjectIdentifier
relatedObjectIdentifierType: PUIDrelatedObjectIdentifierValue: x-sfw/8
x-sfw/8Description of Windows XP Professional in PRONOM
Alternative: Link to an external registry
17 October 201657
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Semantic units only applicable to
environment Intellectual Entities� 1.9 environmentFunction
� environmentFunctionType
� environmentFunctionLevel
� 1.10 environmentDesignation� environmentName
� environmentVersion
� environmentOrigin
� environmentDesignationNote
� environmentDesignationExtension
� 1.11 environmentRegistry
� environmentRegistryName
� environmentRegistryKey
� environmentRegistryRole
� 1.12 environmentExtension
� 1.13 relationship …
� relatedEnvironmentPurpose
� relatedEnvironmentCharacteristic
17 October 201658
17 October 201659
� 1.9 environmentFunction � environmentFunctionType
� environmentFunctionLevel
� 1.10 environmentDesignation� environmentName
� environmentVersion
� environmentOrigin
� environmentDesignationNote
� environmentDesignationExtension
� 1.11 environmentRegistry� environmentRegistryName
� environmentRegistryKey
� environmentRegistryRole
� 1.12 environmentExtension
� 1.13 relationship � …
� relatedEnvironmentPurpose
� relatedEnvironmentCharacteristic
objectCategory: intellectual entityenvironmentFunction
environmentFunctionType: software application
Firefox 10.0objectCategory: intellectual entityenvironmentFunction
environmentFunctionType: software application
BlueGriffon 1.6
Content ObjectformatName: text/html
relationshipType: dependencyrelationshipSubType: requiresrelatedEnvironmentPurpose renderrelatedEnvironmentCharacteristic: known to work
relationshipType: dependencyrelationshipSubType : requiresrelatedEnvironmentPurpose: create
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add physical Objects
� A physical Object is � A content Object, such as a manuscript, or printed document� An environment Object, such as a physical hardware device.
� Representation: A digital or physical Object � Either one instantiates or embodies an Intellectual Entity
� Digital and non-digital Objects can be captured uniformly.� Physical Objects can relate to digital Objects and other physical Objects.
� In V3 storage is applicable to Representations. For physical Representations: the physical location, e.g. a shelf location.
17 October 201660
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Add physical Objects
17 October 201661
[Physical representation]
objectIdentifierobjectIdentifierType: ARKobjectIdentifierValue:
ark:/9999/h1.version1objectCategory: fileformat
formatDesignationformatName: image/tiffformatVersion: 6.0
objectIdentifierobjectIdentifierType: ARKobjectIdentifierValue::ark:/12148/cb37367035f
objectCategory: intellectual entity
relationshipType: derivationrelationshipSubType: has sourcerelatedObjectIdentifier
relatedObjectIdentifierType: Internal call numberrelatedObjectIdentifierValue: Rés. Ye-3535
relationshipType: structuralrelationshipSubType: is represented as
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
PREMIS: From V2 to V3
� Improving PREMIS based on user needs
� Add preservationLevelType semantic unit
� Add agentVersion semantic unit
� Add “unknown” values
� Add eventDetailInformation semantic unit
� Add authority for controlled vocabulary
� Make Intellectual Entity an Object category
� Make Environments independent Objects
� Add physical Objects
� Update conformance statement
17 October 201662
major
minor
bonus
clarificationhttp://www.loc.gov/standards/premis/premis-conformance-20150429.pdf
Angela Dappert -Digital Preservation Metadata and Improvements to PREMIS in Version 3.0
Thank you!
� Resources: http://www.loc.gov/standards/premis/
� PREMIS Implementors Group Forum: [email protected]
17 October 201663