Web 2.0
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The term "Web 2.0" (2004–present) is commonly
associated with web applications that facilitate
interactive information sharing, interoperability,
user-centered design, and collaboration on the
World Wide Web.
Web 1.0 VS Web 2.0
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Web 1.0 A small number of writers created Web
pages for a large number of readers. As a result,
people could get information by going directly to
the source
Web 2.0 Large number of writers created Web
pages for a large numb er of readers. Information
is broken up into “microcontent” units that can be
distributed over dozens of domains.
Web 1.0 VS Web 2.0
Web1.0
Web 2.0
Web as
information
source
Web as
participation
Character of Web2.0





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Web 2.0 websites allow users to do more than just retrieve information.
Provide "Network as platform" computing, allowing users to run softwareapplications entirely through a browser.
Users can own the data on a site and exercise control over that data.
These sites may have an "Architecture of participation" that encourages
users to add value to the application as they use it.
Rich user experience, user participation, dynamic content, metadata, web
standards and scalability.
Openness, freedom and collective intelligence by way of user participation.
What is Metadata


is “data about data.”
It can be applied to a vast array of objects including both
physical and electronic items such as raw data, books, CDs,
DVDs, images, maps, database tables, and web pages.
Web 2.0 Technology

SLATES (Search, Links, Authorship, Tags, Extensions,
Signalling)
 Search
A
web search query is a query that a user enters into web
search engine to satisfy his or her information needs. Web
search queries are distinctive in that they are unstructured
and often ambiguous; they vary greatly from standard
query languages which are governed by strict syntax rules.
Web 2.0 Technology
 Link
 The
use of Links or Uniform Resource Identifiers to forge
deep interconnections between the information content
across collaborating enterprises.
 Authorship
 The
ability of all individuals within and across enterprises to
easily publish content accessible across collaborating
enterprises.
 Tag
 Categorization
of content by users adding "tags“. The use of
Tags to enable the rapid and humanistic organisation of
data across collaborating enterprises.
Web 2.0 Technology
 Extensions
 The
mining of previously gathered data relating to a users
activities or transactions which allows users to be guided to
initiate other valuable activities or transactions.
Exemplified by the phrase "other customers who purchased
this book also purchased these books”
 Signals
 The
use of syndication technology such as RSS to notify users
of content changes.
Web 2.0 Technology

Web syndication
 Web
syndication is a form of syndication in which
website material is made available to multiple other
sites.
 Most commonly, web syndication refers to making web
feeds available from a site in order to provide other
people with a summary of the website's recently added
content (for example, the latest news or forum posts).
Example of web2.0

Web Blogs: a type of website, usually maintained by an
individual with regular entries of commentary, descriptions of
events, or other material such as graphics or video. Entries are
commonly displayed in reverse-chronological order.
Example of web2.0

Wiki: is a website that allows the easy creation and editing of
any number of interlinked web pages via a web browser using
a simplified markup language or a WYSIWYG text editor.
Example of web2.0

Flickr: an image and video hosting website, web services suite, and online
community. In addition to being a popular website for users to share and
embed personal photographs.