Metadata Flashcards
The Big Question
How do you make sure you can read your stuff in 100 years?
OAIS
Open Archival Information System
Archive standard for storage of data in digital form
OAIS Information Package
Subset of data that is important to digital archiving.
Submission Information Package
(SIP) Info that is submitted with the data that is going to be archived at the point in time the submission is made
Archival Information Package
(AIP) Information package used by the archive during the period of time the data is in the archive
Dissemination Information Package
(DIP) Used as portions of the information in the archive is shared with others.
Parts of an Information Package
1) Content Information
2) Preservation Description Information
3) Packaging Information
4) Descriptive Information
Parts of Content Information Package (CIP)
1) Content Data Object
- - Data object being preserved as bit stream
2) Representation Information
- - Structural Metadata
- - Semantic Metadata
Content Information Package
(CIP) Holds information about the structural and semantically content of the archive
CIP Structural Data
the format and/or data structures that makes the bitstreams into something valuable like characters, numbers, arrays, encodings, etc
CIP Semantic Data
the meaning, English prose, human oriented data that is readable
CIP Content Data Object Description
Human readable data structure description.
CIP Environment Description
Description of the software and hardware environment the data/program is compatible for.
Software includes OS and Rendering Program Data
Hardware includes Storage, Computational Resources, and Peripherals
Parts of Preservation Description Information (PDI)
1) Reference Information
2) Context Information
3) Provenance Information
4) Fixity Information
PDI Reference Information
Contains reference data:
- -Archival System Identification
- -Global Identification
- -Resource Description
PDI Context Information
Contains context of the data’s existence
- -Reason for Creation
- -Relationships between this and other objects
PDI Provenance Information
Contains the context of the data structure's lifespan Answers these questions: --Where did the object originate? --How was it created? --History before Ingest? --Process of Ingest? --History of Archival? --Rights management?
Description of PDI Provenance Events
Events described by:
- -Name
- -Procedure
- -Date
- -Responsible Agency
- -Outcome
- -Notes
ISO Specification for Archiving Data
ISO/IEC 11179
Specification and Standardization of Data Elements
XML Archival Schema
OASIS Registry/Repository (for XML Schemas)
Common Metadata Representation Standards
- -XML
- -XML Schema
- -OWL
- -RDF
- -Dublin Core
- -XML METS
- -VERS
- -AIP
- -MOF
Necessary Elements for Successful Creation and Evolution of Metadata Registry
1) Initial creation of metadata schemata
- -Very important this is done well
- -Software will be developed to access the registry
- -Don’t want the software to be rewritten as the registry evolves
2) Subsequent creation of new metadata must be a controlled process
- -Do not get too radical of changes
3) Process must be developed for the Long Term controlled evolution, maintenance, and use of metadata schemata
4) Tools must be in place to support the development and evolution of and control of the metadata registry.