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Why METS?The new paradigm: connecting content
Past
Project WebsitesRepositories
Present
Portal WebsitesFederated Search
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Future• Decentralized Web services
– Relying on• Personalization• Social / Scientific Communities• Semantic Relations• Grid Computing
– Offering:• Dynamic Services (private bookshelf, …)• Tools for Analysis, Annotation, Linking, Rating, Tagging• Collaborative Workspaces• Referencing single digital objects, or even parts of them
• “Scientific Mashups”– Online / Offline– Interfaces and Protocols
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Consequences• Shift of Relevance
– Less:• Originator / host of content• Low quality images• “Black Box” software architecture with “vanilla” features
– More:• Metadata• Fulltext• Addressable sub-parts of an object• High resolution images• Interfaces• Specialized, encapsulated, connectable tools
• METS– “Self-Awareness” of every document/file
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Web bases METS creation for high quality mass digitisation
• Easy to use, collaborative web based METS metadata editor• Flexible metadata sets• Workflow orchestration• Access roles and permissions• Presentation and usage• Long term preservation• “Scan to EDL / WDL / …”• Open Source / Collaborative Development
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Create volume metadata based on catalog data
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Document model with two structures
Monograph 00000001.tif
Chapter
Chapter
Chapter
Chapter
Chapter
00000002.tif
00000003.tif
00000004.tif
00000005.tif
00000006.tif
00000007.tif
00000008.tif
Bound Book
Page
Page
Page
Page
Page
Page
Page
Page
page area
Phys. structure Content files
HiRes01.jpg
Fulltext.xml
Logical structure
Thumb01.jpg
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Building logical and physical structures
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Exporting METS
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Controlling
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Workflow Orchestration
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Visualisation
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Full Text Search
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Image Highlighting
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Table of Content
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Metadata
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PDF Download
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Presenting (TEI) Full Text
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Handling Metadata and METS
• Fulltext is referenced, not embedded in METS file due to file sizes.– METS file is about 2 – 3 MB
– Fulltext is about 20 MB
• Use MODS for descriptive metadata for logical structure entities
• PREMIS preservation metadata
• Own descriptive metadata schema for physical structure entities – storing page numbers
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Availability
• Offering a full-flavored framework for digital libraries• Open Source• Components
– LINUX / UNIX Filesystem– JAVA (min 1.5)– Tomcat & Apache– MYSQL– TYPO3 (PHP)– WebDAV– LDAP
• Subversion Server• Work in progress: support model
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Join us!