The document is a seminar report on Web 2.0 presented by Srijan Bose. It discusses the origins and key concepts of Web 2.0, including user-generated content, blogs, wikis, social networking and more collaborative features that emphasize sharing among users. New technologies like AJAX enabled richer user experiences on websites with dynamic content and social media platforms. While Web 2.0 improved participation and interaction online, it also introduced some risks regarding personal security, inappropriate content, and permanent digital footprints.

1. Bharati Vidyapeeth Deemed University
College Of Engineering, Pune
A
Seminar report on
Web 2.0
By
SRIJAN BOSE
B-Tech Computer-II
Semester- VII
Roll No: 48
Under the Guidance of:
Prof. Sachin Wakurdekar
DEPARTMENT OF COMPUTER ENGINEERING
B.V.D.U. COLLEGE OF ENGINEERING, PUNE
2011-2012

3. The world wide web
The world wide web( abbreviated as WWW or W3
commonly known as the Web) a system of
hyperlinked documents accessed via the Internet. It
was introduced to allow collaborators in remote
sites to share their ideas and knowledge.
WWW invented by Tim
Berners- Lee
The Web's historic logo
was designed by Robert
Cailliau

4. New technologies are transforming the way
people use the world wide web

5. WIKI
Podcast
Rich User experience
Blogs Web 2.0 API’s
Social networks Feeds
AJAX
Tags
User generated content

6. Origin of Web 2.0
A phrase coined in 2004 by
O’Reilly Media Group; refers
to a perceived or proposed
second generation of
Internet-based services such
as Social Networking sites,
Wikis etc - that emphasize
Online Collaboration &
sharing among users
Tim O’Reilly

7. Web 2.0 called Read/Write Web
Web Browser based Application
Social Networking-
Connecting, Sharing, Collaborating
Participatory media. Creating
content :
Uploading photos, Music, Videos,
Tagging, commenting, Blogging

8. Netscape compared with Google"
•Their flagship product was the web browser, a
desktop application, and their strategy was to use
their dominance in the browser market to establish
a market for high-priced server products. Control
over standards for displaying content and
applications in the browser would, in theory, give
Netscape the kind of market power enjoyed by
Microsoft in the PC market.
•Netscape promoted a "WebTop" to replace the
desktop, and planned to populate that WebTop
with information updates and applets pushed to
the WebTop by information providers who would
purchase Netscape servers.

9. •In short, Netscape focused on creating software,
updating it on occasion, and distributing it to the end
users. O'Reilly contrasted this with Google, a
company which did not at the time focus on
producing software, such as a browser, but instead
focused on providing a service based on data such as
the links Web page between sites.
•Google exploits this user-generated content to offer
Web search based on reputation through its "Page
Rank" algorithm.

10. A similar difference can be seen between the
Encyclopedia Britannica Online and Wikipedia
•The Britannica relies upon experts to create
articles and releases them periodically in
publications
•Wikipedia relies on trust in anonymous users to
constantly and quickly build content. Wikipedia is
not based on expertise but rather an adaptation of
the open source and it produces and updates articles
constantly.

11. Web 2.0 is the common term that is used
to differentiate today’s internet.
Creation of
Web 2.0

12. New media and tools for a Web 2.0 world
Blogs : An easy to edit website created within a browser
Wiki : A web site that anyone can edit. Collaborative
document creation
Podcast : An Internet radio show. Subscribe, Listen & watch
whenever required. Social Bookmarking: Manage
bookmark online, tag content, network, discover
RSS : really simple syndication – a way of tracking Blogs,
wikis, news sites etc.
A “Feed Reader”is used to track all of the content.
Social Media : Facebook, Myspace, Twitter etc.

13. Web 2.0 websites include the following features
Search
Finding information through keyword search.
Links
Connects information together into a meaningful information ecosystem
using the model of the Web.
Authoring
The ability to create and update content leads to the collaborative work of
many rather than just a few web authors.
Tags
Categorization of content by users adding "tags"—short, usually one-word
descriptions—to facilitate searching

14. Most Popular Site
 Yahoo!  Orkut.com
 Google  Google India
 Myspace  Rediff.com
 Microsoft Network (MSN)  Naukri.com
 EBay  Rapidshare.com
 YouTube
 WikiPedia
 Amazon.com
 Craigslist.org
 facebook
 Windows Live
 Blogger.com

15. What does it look like ??
Personal Homepage and social Networking

16. Share Your Photos

17. To Write a Blog

18. To upload and share videos

19. Del.icio.us is an Example of a Site that Uses a
“Folksonomy” to Organize Bookmarks

20. Wikipedia is a Collaborative Dictionary Being
Edited in Real time by Anyone

21. Express
Phones Interact Stay
connected
Music
Webcams Player

22. 3 Concepts
to use web 2.0 wisely
Internet is a public place. Anonymity
is a myth.
The internet is for ever. What
goes online can never be erased
What you see online is not
necessarily reality

23. Internet is forever
Capture
& harvest
store information
Source
Digital Footprints Path
Destination

24. Cached
Information deleted is
Stored
Millions
of
snapshots
Digital footprints can be Damaging

25. Internet is a public place
Anonymity is a myth
Posted Or
Can be identified by
* Internet service provider
* Foreign governments
* Marketers

26. What you see online is not all reality
Digital World Different from
Real World
Cyber bullies
Scammers
Hackers

27. Risks of web 2.0 includes
Contact with strangers and bullies
Identity theft for posting personal info.
Damage to reputation
Access to inappropriate content

28. Web 1.0 Vs Web 2.0
Free Hosting
Static Pages
HTML
50k Bandwidth
Reading Information
Social media
User generated content
Virtual community
Web Applications
Blogs 1Mb Bandwidth

29. WEB 1.0
CHOOSE THE CONTENT AND PUT ON YOUR SITE

30. WEB 2.0
AdSence read your site and accordingly
recommends adds for the site

31. WEB 1.0
Need to upload photos

32. WEB 2.0
Upload and share photos

33. Attributes of Web 2.0
Rich user experience
user participation
dynamic content
Metadata
web standards
scalability
openness
freedom

34. Why Web 2.0 is called Network as a Platform ?
Web 2.0 websites allow users to do
more than just retrieve information.
It provide user with :
 More User Interface
 Software
 Storage facility

35. Technologies
For web 2.0 development
Adobe Flash AJAX
Adobe flex framework

36. Traditional HTTP Processing

37. AJAX-based Processing
•Asynchronous JavaScript and XML
• Allows for asynchronous communication
between a browser (client) and server
•Does not mandate that the end user must
wait for processing a request
•Can be used as an alternative to HTML forms
in certain situations

38. AJAX-based Processing

39. Adobe Flex
Adobe Flex is a software development
kit (SDK) released by Adobe Systems for the
development and deployment of cross-
platform rich Internet applications based on
the Adobe Flash platform. Flex applications
can be written using Adobe Flash Builder or
by using the freely available Flex compiler
from Adobe.

40. Concepts
Web 2.0 can be described in 3 parts
 Rich Internet Application (RIA)
 Service Oriented Architecture(SOA)
 Social Web

41. Web 2.0 applications are giving programmers access to their
information data stores and basic functions through simple
programming interfaces (API’s) based on service oriented
architecture principles. A program’s content and functions can be
exposed to other programs running on the web by “wrapping” them
with these API’s.
There are really two common API standards
1. SOAP (simple object access protocol)
2. REST (representational state transfer).

42. Creating “Mashups” or “Remixes” that combine 3rd
party data and information in innovative ways using
the Web 2.0 technologiy
Housingmaps.com for finding homes that are for sale or rent in37
different countries in US

43. Marketing
A growing number of marketers are
using Web 2.0 tools to collaborate with
consumers on product Development,
service enhancement and promotion.
Company employees have created
wikis – that allows Users to add, delete,
and edit content.

44. Web 2.0 is about write Ones and read Many
As more and more number of users uses it ,
it keeps on getting better and better.
Tim O’Reilly on web 2.0
from O’Reilly Media

45. More advancement in the Web 2.0 technology
Communication between different devices
or different appliances
Presence of Web
will be More
Visibility of web
will be Less
Interaction
Will be present in
everyday
appliances

46. Criticism
Tim Berners-Lee the inventor of www in
an interview described the term “Web
2.0” as a “piece of jargon”.
 Does not represents a newer version of
“www” but continues to use web 1.0
concepts and technologies.
 AJAX did not replace HTTP protocol

47. Peek into the future – Web 3.0
• Being defined as the "Semantic Web"
• Personalization is the new buzzword
• A.I. + Profiling + Search + Rich
metadata = high degree of
Personalization

48. Thank You