Slides prepared for the International Image Interoperability Framework workshop at the Hague, April 2012, describing the W3C Community Group Open Annotation draft specification.

1. Open Annotation
(W3C Community Group Draft)
Robert Sanderson
azaroth42@gmail.com
Los Alamos National Laboratory
@azaroth42
W3C Open Annotation Co-Chair
Herbert Van de Sompel
hvdsomp@gmail.com
Los Alamos National Laboratory
@hvdsomp
http://www.openannotation.org/
This research was funded, in part, by the Andrew W. Mellon Foundation.
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2. Overview
• Basic Open Annotation Model
• Annotation
• Body
• Target
• Specific Resources
• State
• Selector
• Style
• Multiple Specifiers
• Network Model
• Publish/Discover/Subscribe
• Embedding Resources
• Publishing Resources
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3. Basic Model
An RDF
Document
The What The
Comment Comment is
About
http://www.openannotation.org/spec/core/
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4. Basic Model
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5. Annotation Types
There can be further typing of the Annotation to clarify purpose.
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6. Annotation Types
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7. Annotation Provenance
Additional information can be associated with the Annotation
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8. Annotation Provenance
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9. Body
Body can have both Type (Video) and Format (mpeg)
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10. Body
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11. No Body
Highlight or Bookmark Annotations may not have a Body
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12. No Body
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13. Specific Body
Identifier for a
Specific
Representation
or Part of a
Resource
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14. Specific Body
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15. Target
The Target can also have both Type (Image) and Format (png)
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16. Target
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17. Multiple Targets
There can be more than one Target, eg. for compare/contrast.
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18. Multiple Targets
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19. Specific Target
Identifier for a
Specific
Representation
or Part of a
Resource
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20. Specific Target
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21. Specifiers
Specific Body and Specific Target resources identify the region of
interest, and/or the state of the resource.
Need to be able to describe the state of the resource, the segment
of interest, and potentially styling hints for how to render it.
We introduce three Specifiers:
State Describes how to retrieve representation
Selector Describes how to select segment
Style Describes how to render/process segment
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22. Specifier Workflow
Multiple Specifiers of different types can be used together
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23. State
Description of
Representation
of Interest of
Body or Target
Resource
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24. State
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25. Selector
Description of
Segment of
Interest of
Representation of
Body or Target
Resource
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26. Selector
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27. Fragment Selector
Description of
Segment of
Interest via URI
Fragment
Specification
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28. Fragment Selector
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29. Style
Description of
Rendering
Instructions for
Body or Target
Representation
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30. Style
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31. Alternative Specifiers
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32. Alternative Specifiers
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33. Annotation Protocols
Unlike previous systems, Open
Annotation does not mandate a
protocol.
No reliance on a client/server
combination gives the client
autonomy.
Instead we promote a publish/
subscribe methodology, where
annotations may be stored and
consumed from anywhere.
Protocol: publish, subscribe, consume tied together
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34. Publish/Subscribe Method
We don’t specify how this transfer should occur
publish
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35. Publish/Subscribe Method
Nor this.
publish subscribe
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36. Publish/Subscribe Method
Nor this.
publish subscribe consume
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37. Inline Body
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38. Inline Body
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39. Inline Target
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40. Inline Target
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41. Inline Specifier
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42. Inline Specifier
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43. Annotation Serialization
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44. Annotation Serialization
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45. Publishing Embedded Resources
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46. Publishing Embedded Resources
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47. Model Overview
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48. Thank You
Robert Sanderson
rsanderson@lanl.gov
azaroth42@gmail.com
@azaroth42
Web: http://www.openannotation.org/
http://www.w3.org/community/openannotation/
These Slides: http://slidesha.re/…
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