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The York University Libraries upgration project identifies collections that cover the range of object models that the repository uses. The conservative goal is to preform an upgration on the collections listed below. The stretch goal an upgration all of all objects in the repository.

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York University Digital Library (YUDL) is an Islandora repository that run on the HEAD version of all Islandora Foundation modules. The repository is run as close a stock/generic Islandora instance where possible.

Collection Description(s)

York University Digital Library contains approximately 200,000 unique digital assets.

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• 1 Islandora Collection Content Model object
• 684 Islandora Internet Archive Book Content Model objects
• 159,616 Islandora Page Content Models objects

Object Models

TODO: Add Compound object collection model, and collection with compound objects.

Islandora Collection Content Model

• RELS-EXT = Fedora Object to Object Relationship Metadata
  • Type: Inline XML
  • Mime Type: application/rdf+xml
  • Versionable
• RELS-INT
  
  • Type: Inline XML
  • Mime Type: application/rdf+xml
  • Versionable
• COLLECTION_POLICY = Collection policy
  • Type: Inline XML
  • Mime Type: text/xml
  • Versionable
• DC
  • Type: Inline XML
  • Mime Type: text/xml
  • Versionable
• EAD
  • Type: Externally Referenced
  • Mime Type: text/xml
• TN = Thumbnail
  • Type: Managed
  • Mime Type: image/jpeg, image/gif, image/png
• POLICY = XACML Policy
  • Type: Inline XML
  • Mime Type: text/xml
  • Versionable
    

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• RELS-EXT = Fedora Object to Object Relationship Metadata
  • Type: Inline XML
  • Mime Type: application/rdf+xml
  • Versionable
• RELS-INT
  
  • Type: Inline XML
  • Mime Type: application/rdf+xml
  • Versionable
• MODS
  • Type: Managed
  • Mime Type: text/xml
  • Versionable
• DC
  • Type: Inline XML
  • Mime Type: text/xml
  • Versionable
• OBJ = Archival object
  • Type: Managed
  • Mime Type: application/warc
  • Versionable
• TECHMD_FITS = FITS
  • Type: Managed
  • Mime Type: text/xml
  • Versionable
• TN = Thumbnail
  • Type: Managed
  • Mime Type: image/jpeg, image/gif,  image/png
  • Versionable
• JPG
  
  • Type: Managed
  • Mime Type: image/jpg
  • Versionable
• PNG
  • Type: Managed
  • Mime Type: image/png
  • Versionable
• PDF
  • Type: Managed
  • Mime Type: application/pdf
  • Versionable
• WARC_CSV
  • Type: Managed
  • Mime Type: text/plain
  • Versionable
• WARC_FILTERED
  • Type: Managed
  • Mime Type: application/warc
  • Versionable
• POLICY = XACML Policy
  • Type: Inline XML
  • Mime Type: text/xml
  • Versionable
    

Fedora 3 Details

Storage: Legacy storage (or Akubra)

YUDL uses a stock Akubra storage implementation.

XML metadata : datastreams

See object models above.

XML metadata : inline

See object models above.

Content models

See object models above.

Datastream types (inline, managed, redirect, and external)

YUDL/Islandora uses inline, managed, and external datastream types. The list of objects models above should cover all uses of datastream types.

Identifiers

YUDL/Islandora uses custom namespaces for PIDs. In addition, standard Islandora URL structure and can overridden and user friendly URLs can be minted with Islandora Pathauto. For more information, see the YUDL URI Policy.

Indexing strategies (GSearch, RI-Search vs. F4 approaches)

YUDL/Islandora uses GSearch and the Resource Index.

Replication/Journaling

YUDL does not take advantage of replication or journaling.

Security policies: XACML

YUDL/Islandora uses XACML for a variety of access use cases; access to edit specific datastreams, access to view specific datastreams, access to view the object. YUDL/Islandora uses some of the default Fedora 3.x XACML policies, plus Islandora Foundation supplied XACML policies.

$ tree fedora-xacml-policies
fedora-xacml-policies
└── repository-policies
    ├── default
    │   ├── deny-reloadPolicies-if-not-localhost.xml
    │   ├── permit-anything-to-administrator.xml
    │   ├── permit-apia-unrestricted.xml
    │   ├── permit-dsstate-check-unrestricted.xml
    │   ├── permit-oai-unrestricted.xml
    │   ├── permit-serverStatus-unrestricted.xml
    │   └── readme.txt
    └── islandora
        ├── permit-apim-to-authenticated-user.xml
        ├── permit-getDatastreamHistory-unrestricted.xml
        ├── permit-getDatastream-unrestricted.xml
        └── permit-upload-to-authenticated-user.xml
3 directories, 11 files

OAI-PMH

YUDL/Islandora does not use the Fedora OAI-PMH module. YUDL/Islandora uses the Islandora OAI-PMH module.

Versions

YUDL/Islandora takes advantage of version. Nearly every datastream is versionable, and can be view/reverted in the Islandora admin interface given the proper permissions.

Disseminators

YUDL/Islandora does not use disseminators.

Audit history

YUDL/Islandora uses the audit history for the Islandora PREMIS, Islandora Checksum, and Islandora Checksum Checker modules.