Web 3.0 focuses on semantics, data standards, and understanding through technologies like RDF, OWL, and SPARQL. These standards allow sites and data about the same things to be easily combined and searched. APIs are also important, allowing developers to build applications that access and combine data from different systems and sources, powering mashups, mobile apps, and more. When developing an API, one should focus on RESTful design principles, use meaningful URIs and formats like JSON, and support the developer community through documentation, tutorials, and libraries.

1. Get ready for web3.0! Open up your app!
David Coallier - OSS Barcamp

2. Web 1.0

4. Problems with web1.0?

5. Limited content :’(
Limited creativity :’(
Limited amusement :’(
Limited Profit :’(

10. Web 2.0

11. Web 1.0 Web 2.0
Static Dynamic
Them Us
Published Participation(n)
Screen Scraping Web Services APIs

12. Web Services
Everyone
Together me
Web2.0
web1.0
Dynamic
static
Collaboration
Interesting

13. €
€

14. ++€
++€
++€

15. But wait... there are still
problems!

16. People! Too much creativity
Reinventing the wheel
Who cares... it’s innovation
Costs a lot to do the same..

21. So.... what does web3.0 do?

22. Semantics Data/Web
Organization
Standards
Understanding

23. OAUTH, API, XML, RDF, XDI, URI, XRI, SPARQL, SWRL,
XFN, OWL, etc.

24. ?!

25. Example ;-)

26. Site “X” about Laura

27. Site “Y” about Laura

28. Problems?
More to learn
Takes longer
Unexpected changes
Less results...

29. Solution!
Standardize all this
Learn and comply to standards
Everything is documented
More results, more money

30. Get me some FOAF (RDF and OWL)

31. So use standards... RDF -> FOAF

32. One thing to learn
General change
You know what to expect

36. Few words to remember someday...
Microformats
DataPortability
Folksonomy

37. Systems understand it. So do search engines ;-)

38. New standards, new words
But me me ME!

39. Community REST
OAuth Testing
architecture
Formats Wiki Routing
Tracking
URLs serialized
json
RESTful Widgets
Communication documentation
RDF
Security XML Tutorials
More Market devs flash
html Performances

40. Why an API?
Get more people to use your technology
Share your data and let developers create
Bring your app/company to the next level
Generate extra revenue
Opportunity for business partnerships

43. Common usages
PC/Mac Applications
Web Embeddable Widgets
Adobe AIR Applications
Mashups
Mobile Applications

44. Embedded widgets
HTML Widgets
Flash Widgets

45. PC/MAC Desktop Apps
Dashboard (OS X)
Desktop App (Last.fm)

46. Adobe AIR
Cross platform apps
HTML/CSS/Javascript Desktop apps

47. Mashups
You all know a mashup
Mash different web apps together

48. Mobile Devices Applications
iPhone Apps (google maps, etc)
Blackberry applications
Android apps
...

49. Sounds interesting...

50. Doing it...

51. problem
Identify your problem

52. problem solution
Find the solution

53. problem solution does what?
What should it do?

54. problem solution does what? behavior?
How should it behave
(Specifications phase)

55. WAKE UP
NOW!

56. problem solution does what? behavior?
Systems Architecture
Software Architecture
Community Tools!

57. Community!

58. problem solution does what? behavior? Architectures?
Community tools
Wiki
Feedbacks
Tutorials
Examples
Developers libraries
Technical documentation

59. problem solution does what? behavior? Architectures?
Community tools
Developers section
Community Widgets
Community Examples
Community Suggestions
Community DAMMIT!

60. problem solution does what? behavior? Architectures? Development
Community tools
Dev, So many things to think about....

61. problem solution does what? behavior? Architectures? Development
Community tools
RESTful
URIs
Formats
Licenses

62. problem solution does what? behavior? Architectures? Development
Community tools
RESTful
http://site.com/friends/david.json
POST : Create/Update
GET : Read
DELETE: .. Delete..

63. problem solution does what? behavior? Architectures? Development
Community tools
Your URI is everything!

64. problem solution does what? behavior? Architectures? Development
Community tools
URIs
http://site.com/getFriend?name=David&format=json
http://site.com/setFriend?name=David&age=22&format=json
http://site.com/deleteFriend?name=David&format=json
http://site.com/friends/david.json
Meaningful URIs

65. problem solution does what? behavior? Architectures? Development
Community tools
Formats
JSON (Light web widgets)
XML (Server side integration)
Serialized/YAML (PHP, other languages)
RDF & Friends (Standardized XML)

66. problem solution does what? behavior? Architectures? Development
Release/Party/Fix
Community tools

67. problem solution does what? behavior? Architectures? Development
Release/Party/Fix
Community tools

68. problem solution does what? behavior? Architectures? Development
Release/Party/Fix
Community tools

69. problem solution does what? behavior? Architectures? Development
Release/Party/Fix
Community tools

70. SRWA
Standardized RESTful API
Win more money!

71. What if?

72. You don’t have the in-house expertise/time
You aren’t able to handle the load
You can’t keep track of activity

73. Mashery helps with load and stats

74. We help with the API expertise :)

75. And you REALLY want to know how we do it?
We have an API framework called FRAPI

76. bah... I’ll spare you the sales pitch :)

77. Links:
http://www.echolibre.com
http://en.wikipedia.org/wiki/Microformat
http://en.wikipedia.org/wiki/DataPortability
David Coallier
http://dataportability.org
david@echolibre.com
http://en.wikipedia.org/wiki/OAuth
@davidcoallier
http://www.mashery.com
http://oauth.net
http://en.wikipedia.org/wiki/Folksonomy
http://short.ie/ossbarcamp-web30-slides
sprintf(“http://en.wikipedia.org/wiki/%s”, term);

78. Q&A