Summary introduction to the underlying W3C specifications that IIIF uses to enable image and presentation sharing and access

1. @azaroth42
Foundational
Specifications
Rob Sanderson
rsanderson@getty.edu
Foundational Specifications
International
Image
Interoperability
Framework

2. @azaroth42
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

5. @azaroth42
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

6. @azaroth42
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”: [ … ]
}

7. @azaroth42
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

8. @azaroth42
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

9. @azaroth42
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

10. @azaroth42
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?

11. @azaroth42
Foundational
Specifications
Webmention
• Very simple specification for notifications
• Source URL mentions Target URL

12. @azaroth42
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/