FEDORA Digital Objects & Content Model Architecture Egbert Gramsbergen – TU Delft Library Technical Meeting 3TU.DC #1 – 2008-10-11.

Presentatie over: "FEDORA Digital Objects & Content Model Architecture Egbert Gramsbergen – TU Delft Library Technical Meeting 3TU.DC #1 – 2008-10-11."— Transcript van de presentatie:

1 FEDORA Digital Objects & Content Model Architecture Egbert Gramsbergen – TU Delft Library Technical Meeting 3TU.DC #1 – 2008-10-11

2 Digitale Objecten Structuur van object in Fedora Serialisatie: FOXML

3 PID, Datastreams <= standaard datastreams (metadata) <= zelf bedachte datastreams (data) <= PID myPrefix:myIndentifier URI: info:fedora/mP:mI URL: http://mySite/fedora/objects/mP:mI

4 Datastreams Eigenschappen van datastreams Identifier State Created Date Modified Date Versionable Label MIME Type Alternate Identifiers Checksum Bytestream Content Control Group - Internal XML Content _- Managed Content _____________ - External Referenced Content - Redirect Referenced Content

5 Standaard datastreams AUDIT Geschiedenis van het object DC Dublin Core metadata RELS-EXT Relaties tussen objecten RDF }

6 “Isaac Newton” Obj1 dc:creator Obj2 myNS:myRel “Isaac Newton” Obj1 dc:creator Obj2 myNS:myRel fedora:isPartOf foaf:knows myNS:isLocatedIn etc… Obj1 Merge Triple store Netwerk “SQL-achtige” queries

7 Content Model Architecture (CMA) Doel: dynamische disseminaties (vs statische diss: datastreams) Voorbeelden: - xml => html - xml => pdf - bewerking plaatjes - berekeningen - aggregatie content uit verschillende objecten Oplossing: [nieuw in Fedora 3.0] - koppel object aan model(len) - model zorgt voor de rest

8 Onderdelen van CMA welke datastreams? fields welke services? methods(args) <= Abstract class <= Implementation data object instance koppeling met back-end web services

9 demo & links Demo CMA (don’t try this @home) : http://devcms.library.tudelft.nl/fedora/objects http://devcms.library.tudelft.nl/fedora/risearch Links: Fedora http://www.fedora-commons.org/ http://www.fedora-commons.org/documentation/3.0/userdocs/ Mulgara (triple store) http://www.mulgara.org/ http://docs.mulgara.org/tutorial/itqlbasics.html

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