Preservation Metadata: The PREMIS Experience - PowerPoint PPT Presentation

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Preservation Metadata: The PREMIS Experience

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Build on the first OCLC/RLG Working Group and A Metadata Framework to Support ... of archived objects. (Maybe.) PRESERVATION METADATA: IMPLEMENTATION STRATEGIES ... – PowerPoint PPT presentation

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Title: Preservation Metadata: The PREMIS Experience


1
Preservation MetadataThe PREMIS Experience
  • Priscilla Caplan
  • Florida Center for Library Automation (FCLA)

2
The Mission
  • Build on the first OCLC/RLG Working Group and A
    Metadata Framework to Support the Preservation of
    Digital Objects
  • Define an implementable set of core preservation
    metadata elements

3
OAIS Information Model
Content Information
Preservation Descriptive Information
Content data object
Representation Information
Context Info
Reference Info
Provenance Info
Fixity Info
4
What is Implementable?
  • As rigorous as possible
  • As much explanation as possible
  • Implementation neutral -- This is what you have
    to know
  • Values can be automatically supplied and
    processed -- no lengthy textual descriptions

5
What is Core?
  • What most working preservation repositories
  • are likely to need to know
  • in order to support the long-term Viability,
    Renderability, Understandability, Authenticity
    and Identity
  • of archived objects.
  • (Maybe.)

6
(No Transcript)
7
(No Transcript)
8
PREMIS Data Model
9
Types of Objects
10
From the Framework
11
From the Data Dictionary
12
Semantic Units Pertaining to OBJECTS
  • objectIdentifier
  • contentLocation
  • originalName
  • preservationLevel
  • objectCharacteristics
  • environment

13
objectCharacteristics
  • compositionlevel
  • fixity
  • size
  • format
  • inhibitors
  • significantProperties
  • creatingApplication

14
Composition Level
Foo.tar
Foo.tgz
Foo.PDF
.XML
.XML
15
Format
  • What types of objects have format?
  • Is there a usable authority list of formats?
  • Is there a difference between a format and a
    profile?
  • Whats a format anyway?
  • What if there are format registries?

16
The evolution of a semantic unit
  • Format
  • formatValue
  • formatScheme
  • Format
  • formatName
  • formatScheme

17
Evolution (2)
  • formatName
  • formatNameValue
  • formatVersion
  • formatRegistry
  • formatRegistryEntry
  • formatRegistryKey

18
Evolution(3)
  • formatName
  • formatNameValue
  • formatVersion
  • formatRegistry
  • formatRegistryIdentifier
  • formatRegistryIdentifierScheme
  • formatRegistryIdentifierValue
  • formatRegistryName
  • formatRegistryEntry

19
Evolution (4)
  • Format (Required, not repeatable)
  • formatName (Optional, repeatable)
  • formatNameValue
  • formatNameVersion
  • formatNameRole
  • formatRegistry (optional, repeatable)
  • formatRegistryIdentifier
  • formatRegistryName
  • formatRegistryEntry
  • formatRegistryRole

20
PREMIS Format Entry
  • Format (Required, Not Repeatable)
  • formatName (Optional, Not repeatable)
  • formatNameValue
  • formatVersion
  • formatRegistry (Optional, Repeatable)
  • formatRegistryName
  • formatRegistryKey
  • formatRegistryRole

21
Environment
  • environmentCharacteristic
  • environmentPurpose
  • environmentDescription
  • dependencies
  • software
  • swName
  • swVersion
  • swType
  • additionalReq
  • swDependency
  • hardware
  • hwName
  • hwVersion
  • hwType
  • additionalReq

22
Events
  • eventIdentifier
  • eventIdentifierScheme
  • eventIdentifierValue
  • eventType
  • eventOutcome
  • eventOutcomeDetail
  • eventDetail
  • eventDateTime

23
Agents
  • agentIdentifier
  • agentIdentifierScheme
  • agentIdentifierValue
  • agentName

24
Relationships
  • relationshipType
  • relatedIdentifier
  • relatedIdentifierType
  • relatedIdentifierValue

25
Rights
26
Metadata Best Practices
  • Have a rigorous data model and relate metadata
    clearly to appropriate objects
  • Store metadata in database and also with content
    data object
  • Use METS, Z39.87
  • Store complete metadata for all versions of
    objects

27
Deliverables
  • Final report
  • Data Dictionary
  • Narrative explanation
  • Data model
  • Glossary
  • Incorporation into METS schema
  • Proposal for test bed exchange
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