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web 2.0 presentation

web 2.0 presentation

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  • 1. WEB 2.0 By RAJA SUKHANTH VARMA.C
  • 2. WEB 2.0 OVER VIEW
    • What is Web 2.0?
    • 3. Web 2.0: Evolution Towards a Read/Write Platform
    • 4. Web 2.0 Characteristics
    • 5. Web 2.0 Features/Technologies
    • 6. What is AJAX?
    • 7. What are Blogs?
    • 8. Social Networks
    • 9. conclusions
  • 10. What is Web 2.0?
    • It is Second generation of services available on the Web that lets people collaborate and share information online.
    • 11. O'Reilly Media and MediaLive International popularized the term
    • 12. From a technology perspective Web 2.0 uses AJAX, Mashups and RSS predominantly
    > Blogs, wikis, photo /video sharing sites, social networking sites > Online web services that share data
  • 13.
      Web 2.0: Evolution Towards a Read/Write Platform
    Web 1.0 (1993-2003) Pretty much HTML pages viewed through a browser Web 2.0 (2003- beyond) Web pages, plus a lot of other “content” shared over the web, with more interactivity; more like an application than a “page” “ Read” Mode “ Write” & Contribute “ Page” Primary Unit of content “ Post / record” “ static” State “ dynamic” Web browser Viewed through… Browsers, RSS Readers, anything “ Client Server” Architecture “ Web Services” Web Coders Content Created by… Everyone “ geeks” Domain of… “ mass amatuerization”
  • 14.
      Web 2.0 Characteristics
    • Rich user experience
    • 15. User participation
    • 16. Dynamic content
    • 17. Web standards and scalability
    • 18. Openness
    • 19. Freedom
    • 20. Collective intelligence
  • 21. Web 2.0 Features/Technologies
    • Technological infrastructure: server software, content syndication, messaging protocols, browsers with plug-ins and extensions, various client applications.
    • 22. Cascading Style Sheets (CSS) to separate presentation from content
    • 23. Folksonomy (collective tagging)
    • 24. Microformats extending pages with semantics
    • 25. REST, XML, JSON based APIs
    • 26. Rich Internet application techniques based on AJAX
    • 27. RSS or Atom feeds for syndication and notification of data
    • 28. Mashups of content from different sources
    • 29. Weblog publishing, and wikis
  • 30.
      What is AJAX?
    • Ajax is not a technology in itself
    • 31. Shorthand for Asynchronous JavaScript and XML
    • 32. The term was first used by Adaptive Path only in Feb 2005
    • 33. Removes the need to reload entire web page each time the user makes a change. Increase the web page's interactivity, speed, and usability.
    • 34. XML is used as the format for transferring data between the server and client. XML files may be created dynamically by some form of server-side scripting
    • 35. The Ajax technique uses a combination of: XHTML and CSS, JavaScript, XMLHttpRequest /IFrame object
  • 36.
      What are Blogs?
    • Blog = web log
    • 37. A web page with periodic posts in reverse chronologic order
    • 38. Blogs began as online journals or diaries
    • 39. Grew rapidly in the political arena
    • 40. Older statistics from Techorati, Oct. 2006:
      • 57 million blogs; number of blogs doubles every 23 days
      • 41. 100,000 created every day
      • 42. 55% are “active,” updated once every 3 months
      • 43. 1.3 million posts a day
    • No one is counting any more!
  • 44.
      Social Networks
    • How it works:
    • 45. First, create a profile for yourself
    • 46. Then connect with others thru people you know either directly or via 6 degrees of separation principle
    • 47. Meet more qualified people than ever possible in the physical world
    • 48. Safe, convenient online meeting place (trust factor)
    • 49. Share ideas, experiences, and learn from people like you
    • 50. Stay in touch
    • 51. Facebook – youth/young adults, utilitarian, fastest growing
    • 52. MySpace – youth/young adults, music/video focus, fantasy, escape
    • 53. LinkedIn – adults, professional, job seeking
    • 54. About 75 more sites claim to enable social networking
  • 55.
      Conclusions
    • New software and services change rapidly
    • 56. Living in the “always beta” world
    • 57. Taking advantage of user-generated content
    • 58. Tapping into new ways of doing things
    • 59. Keep an open mind!
  • 60. Thank You!