1. A Distributed Metadata Architecture Tony Hammond, Nature Handle System Workshop 17 June 2008

2. Scenario

3. Puzzle

4. Solved

5. Handle

6. Services

8. OpenHandle Put Handle on the Web – Access via a Web Service (:2641 :80) Make Handle an Easy Read – Expose Values as Markup (55 52 4C type : URL)

9. OpenHandle 1st Announce (Service) – Mar 26, 03 2nd Announce (Service) – Feb 5, 08 Google Code (Project) – Mar 7, 08

10. OpenHandle

11. RDF/XML - Full Form JSON - Compact Form

15. Hello World

16. JavaScript var h = { … }; var hv = h[handleValues]; var s = ; for (var i = 0; i < hv.length; i++) { var v = hv[i]; s += index = + v[index]; s += type = + v[type]; s += data = + v[data]; }

23. Web Admin?

25. XMP

26. XMP Packet

27. Metadata

28. Metadata (1/5)

29. Metadata (2/5)

30. Metadata (3/5)

31. Metadata (4/5)

32. Metadata (5/5)

33. XMP Inspector

44. Architecture

45. Singles

46. Friends

47. Family

50. Connection

51. http://www.slideshare.net/tonyh/handle-08/ http://code.google.com/p/openhandle/