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UKOLN is supported  by: Content packaging and MPEG-21 DID Andy Powell,  UKOLN, University of Bath [email_address] JISC Joint Programmes Meeting, July 2005, Cambridge www.bath.ac.uk a centre of expertise in digital information management www.ukoln.ac.uk
Contents ,[object Object],[object Object],PPS - I’m not really going to tell you how to use MPEG-21 DID since until 24 hours ago I knew pretty much nothing about it, but many thanks to Jeroen Bekaert and Herbert Van de Sompel of LANL for sharing their presentations and thoughts with me… PS - I’m only going to tell you how using MPEG-21 DID.
Why… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Packaging standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],http://dev.dcc.rl.ac.uk/twiki/bin/view/Main/ContentPackaging XFDU = XML Formatted Data Unit CCSDS = Consultative Committee for Space Data Systems
Example 1 – digitised book ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],page book
Example 2 – learning object ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],PDF document learning object video multiple- choice test
Example 3 - eprint ,[object Object],[object Object],[object Object],eprint (work) PDF manifestation PDF (manifestation) MS-Word (manifestation) now: expose separate simple objects (metadata only) future: expose complex objects (metadata and full text) eprint (work) PDF Word
Some observations… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPEG-21 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPEG-21 DID ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DIDL and digital libraries ,[object Object],[object Object],[object Object],[object Object],[object Object]
MPEG-21 DID model container item (sub-)item component resource (datastream) instantiated as DIDL/XML document represents the digital item/object/asset items (with optional nested sub-items) made up of one or more components, each of which has one or more datastreams Descriptor/Statement Descriptor/Statement Descriptor/Statement Descriptor/Statement metadata and/or identifier
Example – journal article Item Descriptor/Statement dii:identifier doi:10.1234/5678 Component Descriptor/Statement dcterms:created 2005-02-22 Resource @mimeType application/xml @ref http://example.org/getMeta?id=5678 Component Descriptor/Statement dcterms:created 2005-02-21 Resource @mimeType @ref Item Descriptor/Statement dii:identifier doi:10.1234/5678 Component Descriptor/Statement dcterms:created 2005-02-2 Resource @mimeType application/xml @ref http://example.org/getMeta?id=5678 Component Descriptor/Statement dcterms:created 2005-02-21 Resource @mimeType application/pdf @ref http://example.org/getPDF?id=5678 ,[object Object],[object Object],DIDL elements secondary info type value
MPEG-21 DIDL strengths ,[object Object],[object Object],[object Object],[object Object]
MPEG-21 DIDL strengths (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Final thoughts… ,[object Object],[object Object],[object Object],[object Object],[object Object]
Questions?

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Content packaging and MPEG-21 DID

  • 1. UKOLN is supported by: Content packaging and MPEG-21 DID Andy Powell, UKOLN, University of Bath [email_address] JISC Joint Programmes Meeting, July 2005, Cambridge www.bath.ac.uk a centre of expertise in digital information management www.ukoln.ac.uk
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  • 12. MPEG-21 DID model container item (sub-)item component resource (datastream) instantiated as DIDL/XML document represents the digital item/object/asset items (with optional nested sub-items) made up of one or more components, each of which has one or more datastreams Descriptor/Statement Descriptor/Statement Descriptor/Statement Descriptor/Statement metadata and/or identifier
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