Download Definition Web 2.0

Web 2.0
Web 2.0 is the term given to describe a second generation of the World Wide
Web that is focused on the ability for people to collaborate and share
information online. Web 2.0 basically refers to the transition from static HTML
Web pages to a more dynamic Web that is more organized and is based on
serving Web applications to users. Other improved functionality of Web 2.0
includes open communication with an emphasis on Web-based communities of
users, and more open sharing of information. Over time Web 2.0 has been used
more as a marketing term than a computer-science-based term.
Blogs, wikis, and Web services are all seen as components of Web 2.0.
Web 2.0 was previously used as a synonym for Semantic Web, but while the two
are similar, they do not share precisely the same meaning.
Characteristics
Web 2.0 websites allow users to do more than just retrieve information. By
increasing what was already possible in "Web 1.0", they provide the user with
more user-interface, software and storage facilities, all through their browser.
This has been called "Network as platform" computing. Users can provide the
data that is on a Web 2.0 site and exercise some 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.
The concept of Web-as-participation-platform captures many of these
characteristics. Bart Decrem, a founder and former CEO of Flock, calls Web 2.0
the "participatory Web" and regards the Web-as-information-source as Web 1.0.
The impossibility of excluding group members who don’t contribute to the
provision of goods from sharing profits gives rise to the possibility that rational
members will prefer to withhold their contribution of effort and free-ride on the
contribution of others.
This requires what is sometimes called radical trust by the management of the
website. According to Best, the characteristics of Web 2.0 are: rich user
experience, user participation, dynamic content, metadata, web standards and
scalability. Further characteristics, such as openness, freedom and collective
intelligence by way of user participation, can also be viewed as essential
attributes of Web 2.0.
Concept
Web 2.0 can be described in 3 parts, which are as follows:
Rich Internet Application (RIA) - It defines the experience brought from
desktop to browser whether it is from a graphical point of view or
usability point of view. Some buzzwords related to RIA are AJAX and
Flash.
Service-oriented Architecture (SOA) - It is a key piece in Web 2.0 which defines
how Web 2.0 applications expose its functionality so that other
applications can leverage and integrate the functionality providing a set
of much richer applications (Examples are: Feeds, RSS, Web Services,
Mash-ups)
Social Web - It defines how Web 2.0 tends to interact much more with the end
user and making the end user an integral part.
As such, Web 2.0 draws together the capabilities of client- and server-side
software, content syndication and the use of network protocols. Standardsoriented web browsers may use plug-ins and software extensions to handle the
content and the user interactions. Web 2.0 sites provide users with information
storage, creation, and dissemination capabilities that were not possible in the
environment now known as "Web 1.0".
Web 2.0 websites include the following features and techniques: Andrew McAfee
used the acronym SLATES to refer to them: search, links, authoring, tags,
extensions, signals