OCLC Online Computer Library Center OCLC’s Digital Archive – Disseminating OCLC’s Digital Archive – Disseminating with METS with METS Jay Goodkin Software Engineer Digital Collection and Preservation Services
Feb 25, 2016
OCLC Online Computer Library Center
OCLC’s Digital Archive – Disseminating with OCLC’s Digital Archive – Disseminating with
METSMETSJay GoodkinSoftware Engineer
Digital Collection and Preservation Services
Today’s PresentationOCLC Digital Archive OverviewDissemination WorkflowOCLC’s METS Implementation for Dissemination
OCLC Digital Archive -
OverviewFunctions include:– Harvest– Ingest– Content Group Management– Rights Group Management– Viewing– Dissemination– Reports– Periodic Audits of Objects in the Archive– Frequent Backups and Disaster Prevention
Dissemination Information Packages based on METS schema
Digital Archive ServicesDigital Archive Services
Discovery ServicesDiscovery Services
Digital Archive RecordContains the Metadata for each Digital Object in the ArchiveExtension of Dublin CoreEntered and Maintained using OCLC’s Connexion Service Starting Point for Most Functions in the ArchivePlease see http://www.oclc.org/support/documentation/digitalarchive/da_metadata_elements/ for a detailed description of our metadata elements
DA Record in Connexion
Disseminating an Object
Dissemination OptionsDissemination Options
Original Links – Disseminate Original HTML Pages as Captured from the WebRelative Links – Disseminate a Locally Viewable Object
Dissemination Dissemination
ConfirmationConfirmation
ReportsReports
Each Object has a List of Associated Reports Harvest, Ingest and Disseminate Reports shown
Dissemination ReportDissemination Report
Dissemination ManagerDissemination Manager
Inside OCLC’s DIPInside OCLC’s DIPSupports Multiple ObjectsContains all Content Files for each ObjectContains one METS ManifestContains all Object-Level METS Documents
WinZIP View of the DIPWinZIP View of the DIP
METS ManifestMETS Manifest
Uses mptr to point to all Object-Level METS Documents included in the DIP
OCLC’s METS ProfileOCLC’s METS ProfileHeader - No extensionDescriptive Metadata Section - OCLC descriptive schema http://digitalarchive.oclc.org/schemas/oclc_dm.xsd File Section - No extensionStructural Map Section - No extensionBehavior Section - No extension
METS Profile ContinuedMETS Profile ContinuedAdministrative Metadata Section –MIX schema http://www.loc.gov/standards/mix/mix.xsd textMD schema http://dlib.nyu.edu/METS/textmd.xsd OCLC provenance schema http://digitalarchive.oclc.org/schemas/oclc_prov.xsd
METS HeaderMETS Header
References OCLC ExtensionsReferences Industry Standard Extensions – e.g. Mix
METS File GroupMETS File Group
Lists all Content Files for a given ObjectPoints to Technical/Provenance Metadata for each File
TechMD Mix ExampleTechMD Mix Example
ProvMD Mix ExampleProvMD Mix Example
StructMap ExampleStructMap Example
StructMap & Web StructMap & Web
DocumentsDocumentsFitting Web Documents into div StructureIssues with representing Links and OffsetsstructLink shows which Pages link together but not where the Links occurConsidered using the <par><area> structure
Multi-Object DIPMulti-Object DIP
Multi-Object ManifestMulti-Object Manifest
Issues with Issues with
DisseminationDisseminationInteroperability of OCLC’s DIPIssues with encoding large Digital Objects into a METS packageStandardization of Extension Schemas Web Documents
Future PlansFuture PlansUse METS to Integrate with other Digital Repositories - CONTENTdm- Olive- DSpace- Etc.
Redesign Digital Archive Storage Layer based on METS
Contacts at OCLC • Please visit our Web site at:
http://www.oclc.org/digitalarchive/• Contacts:
Pam Kircher – Product [email protected]
Shweta Rani – Software [email protected]
Jay Goodkin – Software [email protected]
Questions • Please see our Tutorial at:
http://www.oclc.org/support/training/digitalarchive/
• Questions?