1. Google MiniBarcamp Lisbon
April 2009

2. Activity stream

3. Activity stream

4. Activity stream

5. Activity stream

6. Activity stream

7. Features
• Verb
• Noun
• Optional: avatar, user name, context, ...

8. Information flow
• How to make sense?

9. Information flow
• How to propagate?

10. Pull
• Simple
• ATOM based
• Organic growth
• Platform independent
BUT...

11. Full pull
Dramatic growth == huge FAIL!

12. Pull with middleman
Better, but not realtime...

13. Push with middleman
~Realtime, context aware and reversible

14. More info
• http://activitystrea.ms/
• Atom Activity Based Schema
http://martin.atkins.me.uk/specs/activitystreams/activityschema
• Atom Activity Extensions
http://martin.atkins.me.uk/specs/activitystreams/atomactivity

15. Thank you!
Bruno Pedro
bpedro@tarpipe.com
twitter: @bpedro
tarpipe.com/user/bpedro