1. Open Data: Designing Data-centric Web APIs Pablo Castro Software Architect Microsoft @pmc, pablo.castro@microsoft.com Strata Conference, February 2011

2. Credit: Flickr/Marcus Hansson, “The best days are not planned”

3. Credit: Flickr/katerha, modified from “Seeing My World Through a Keyhole”

4. Credit: Flickr/Orin Zebest, "Peep"; tinyfroglet, "Unlocking Secrets"; Robbie1, "Keyhole"; katerha, “Seeing My World Through a Keyhole”

5. Credit: Flickr/Marcus Hansson, “The best days are not planned”

6. Credit: Flickr/jurvetson, “What's That?” address filter sort page describe uniform interface

8. http urls structured data convention description documents data services

9. query <-> search filter horizontal <-> vertical page -> sort slicing datasets Photos Credit: Flickr/Public Domain Photos

10. Credit: Flickr/josef.stuefer, “Natural intricacy” share data “by ref” separate resource-representation deep linking

11. bounding work computation bandwidth Credit: Flickr/tallkev, “Crane Gears”

12. Credit: Flickr/Will Scullin, “Blueprint” describe structure enables new client experiences description

13. representation, interaction organization of the data Credit: Flickr/James Cridland, “Numbers in transport”

14. low barrier of entry

15. vocabularies actions discovery making data do more

16. publish yourself publish in marketplace consume from anywhere how do we do it http://odata.org

17. questions, follow ups? @pmc pablo.castro@microsoft.com Credit: Flickr/[F]oxymoron, “A Wild Question”