The document outlines foundational specifications for the International Image Interoperability Framework (IIIF), focusing on the development and implementation of APIs based on web standards such as JSON-LD and linked open data. It discusses various aspects including media fragments, open annotation, activity streams, and webmention, providing examples of how linked data can be structured. Additionally, it includes references to existing specifications and protocols relevant to these topics.

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Foundational
Specifications
Rob Sanderson
rsanderson@getty.edu
Foundational Specifications
International
Image
Interoperability
Framework

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Foundational
Specifications
A Community
that develops APIs,
…shh … secret third line…
implements them in Software,
and exposes interoperable Content

3. @azaroth42
Foundational
Specifications
A Community
that develops APIs,
based on Web Standards,
implements them in Software,
and exposes interoperable Content

4. @azaroth42
Foundational
Specifications
Web Standards
• Linked Open Data
• JSON-LD
• Linked Data Platform
• Media Fragments
• Open Annotation
• Activity Streams
• Webmention
Just putting the puzzle pieces together
with a little glue to make it stick

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Foundational
Specifications
Linked Open Data
• Use URIs to name things
• Use HTTP URIs
• Provide useful information
• Link to other things
Be part of the web,
not just on the web

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Foundational
Specifications
JSON-LD
Developer friendly way to express Linked Data
{
“@context”: ”http://iiif.io/api/presentation/2/context.json”,
“@id”: “http://example.org/iiif/book1/manifest”,
“@type”: “sc:Manifest”,
“label”: “Book 1”,
“metadata”: [
{“label”: “Author”, “value”: “A. Authorus”}
],
“license”: ”http://example.org/rights/license.html”,
“sequences”: [ … ]
}

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Foundational
Specifications
Linked Data Platform
• Information management protocol for Linked Data
• REST principles
• Containers
• JSON-LD (and Turtle)
• Non Linked Data
• Can create links automatically

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Foundational
Specifications
Media Fragments
• URI Fragments identify part of the resource
• … for Timed Media
• Area in space
• Duration in time
• Image API
• Presentation API
• Future Audio/Video API

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Foundational
Specifications
Open Annotation
• Current: W3C Community Group specification
• Coming: W3C Technical Recommendation
• Presentation API
– Painting resources
– ”Regular” annotations
• Search API
– Transcription/OCR
– But really any annotation

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Foundational
Specifications
Activity Streams
• Semantic description of an “activity”
• Describe: Who, What, On/With What, Where, When
• Logging/Description, not Notification/Protocol
• Presentation, Search:
– Collections for Paging
– Synchronization
– Other use cases?

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Foundational
Specifications
Webmention
• Very simple specification for notifications
• Source URL mentions Target URL

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Foundational
Specifications
References
• TimBL on LOD: https://www.w3.org/DesignIssues/LinkedData.html
• JSON-LD: https://www.w3.org/TR/json-ld/
• Linked Data Platform: https://www.w3.org/TR/ldp/
• Media Fragments: https://www.w3.org/TR/media-frags/
• Open Annotation: https://www.w3.org/TR/annotation-model/
• Activity Streams: https://www.w3.org/TR/activitystreams-core/
• Webmention: https://www.w3.org/TR/webmention/