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Its all about internet and innovation in internet
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WEB 2.0
...A Bubble?
A Bubble? ...A bubble?...A Bubble?...A Bubble?...A Bubble?...A Bubble?...A Bubble?
“Web 2.0 is a group of economically, socially, and technologically driven changes in attitudes, tools, and applications that are allowing the Web to become the next platform for communication, collaboration, community, and cumulative learning.”
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Web 2.0 characteristics
• Web is the platform• The read-write web (as distinct from the read-only web)• Data comes from users, often many users• Data stored somewhere outside of your direct control• Sometimes data combined from multiple sources – XML
data assists this• Authentication taken care of by site (and often transferable
eg Google, Gmail, etc)• Often AJAX-based (Asynchronous Javascript and
XML..ability to process in browser without perceptible lag).
Cuene.com/mima
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”
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Metaphors
• Web 1.0 – web as digital library, largely a source of information for students. Strive for content to be authoritative.
• Web 2.0 – web as place for students to build knowledge, interact, share ideas/ Resulting content treated accordingly.
Social
Technical
Business
The Web 2.0 Pie Chart!
Social Trends
• Spread of Broadband
– Increasingly ubiquitous connections
• A generation of “web natives”
– Living on the web– Social networking; blogging; instant messenger
• Create, not just consume
• Some hard lessons about data ownership
– Don’t steal my data; don’t lock me in
Business Trends• Exploit the Long Tail
– At internet scale even niche communities are very large
– “We sold more books today that we didn't sell at all yesterday, than we sold today of all the books that did sell yesterday.”
– Amazon employee quoted on Wikipedia
• Success of web services
– No need to own the user interface. It's your data that they want
• Users can enrich your data
– “Harnessing collective intelligence of users”– Review and Recommend; Social Bookmarking; Folksonomies
Technology Trends• The Power of XML
– Easier to exchange and process application independent data
• Agile Engineering
– Incrementally developer your product; short release cycles– Continually adapt to user needs
– “The Perpetual Beta”
• Maturation of the browser
– XHTML, DOM, CSS, Javascript
– Browser as platform, not just document viewer
13
Students are using Web 2.0 now
• Blogs,e.g. Blogspot, Blogger, Mo’time, • Social network software, e.g. Myspace, Facebook,• Tagged photo stores, e.g. Flickr• Del.icio.us • Wikis,e.g. Wikipedia• Communication networks, e.g. Skype• News and audio services, e.g. podcasts and hosted
video
Let see some example of
Flickrhttp://www.flickr.com/
• Simple photo-storing and sharing site• Tagging by users• As always educators find unexpected ways to use it
• 16 ways to use
Cuene.com/mima
Flickr is a social network for sharing photos.
Flickr shows me photos from my network
My contacts “tags” are available to me
Cuene.com/mima
Del.icio.us is an Example of a Site that Uses a “Folksonomy” to Organize Bookmarks
Tags: Descriptive words applied by users to links. Tags are searchable
A “Folksonomy” is a spontaneous, collaborative work to categorize links by a community of users. Users take control of organize the content together.
Cuene.com/mima
Wikipedia is a Collaborative Dictionary Being Edited in Realtime by Anyone
Blogging is the Most Recognized Example of Web 2.0
Summing Up• Web 2.0 hard to define, but very far from just hype
– Culmination of a number of web trends
• Importance of Open Data
– Allows communities to assemble unique tailored applications
• Importance of Users
– Seek and create network effects
• Browser as Application Platform
– Huge potential for new kinds of web applications
Lokesh Kumar