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Confidential | October, 2008 © 2008 IBM Corporation
Web 2.0 – An overview
Alan Braz - [email protected] Specialist for IBM Global Account
IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Myself
Graduated: Bachelor in Computer Science – State University of Campinas - UNICAMP - 2005 Joined IBM: August 2005 as a Java/WebSphere Developer for IGA Production Support for WWER since November 2005 (AIX and WebSphere environment) OO/Java/JavaEE/RAD Teacher inside and outside IBM since Sep 2006 (more than 270 hours) Focal Point for IGA GD since January 2006, managing 8 resources Brazilian Java Community Leader, exercising my Leadership and Project Management skills, since
Jan 2007 Academic Initiative Ambassador since Feb 2007 Java EE Developer for Enhanced Audio Conferencing System – Rendezvous – since October 2007 Promoted to BAM Representative (Senior Focal Point) Since Jan 2008 – Responsible for all GRs for
Bob Walsh and Maureen Martin BAMs IBM certifications:
– IBM Certified Associate Developer - Rational Application Developer for WebSphere Software V6.0
– IBM Certified SOA Associate
– IBM Certified System Administrator - WebSphere Application Server, Network Deployment V6.1 Sun certifications:
– Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0
– Sun Certified Web Component Developer 1.4 (SCWCD)
– Sun Certified Enterprise Architect 5.0 (SCEA) IT Specialist Advisory Accreditation in progress (target Nov 2008)
Alan BrazGlobal Business ServicesHortolândia, São Paulo, Brazil
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Agenda
What is Web 2.0?
Some web-sites examples
The Seven Key Principles
Some IBM initiatives
Questions
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
What is Web 2.0?
It is NOT a technology, It is NOT an industry It is NOT a pattern, It is NOT a software
It is a term coined by Tim O‘Reilly (see http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html)
Increasingly used for next generation World Wide Web Applications and Services
Web 2.0 has many aspects:– Business Models that survived and have promise for the future
– Approaches such as services instead of products, the Web as a platform, ...
– Concepts such as folksonomies, syndication, participation, reputation, ....
– Technologies such as AJAX, REST, Tags, Microformats, ...
– And many others ...
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
What is Web 2.0?
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
What is Web 2.0?
Strict “Web 1.0” site– “Web Master” runs web site, users
consume
– Few content editors
– Web site provides content and applications for users
– View-only markup
– Only human users
– Accumulates relatively small amounts of information and content
– Fixed categories / Taxonomy
– Unidirectional
WebSite
Data
Modern “Web 2.0” site– Users collectively contribute to the web site,
they don‘t just consume
– Every user is a content editor and rater
– Web site provides content, applications, and collective contributions of all users
– Semantically tagged markup
– Humans and applications as “users”
– Accumulates huge amounts of information and content
– Flexible Tagging / Folksonomy
– Bi-directional
WebSite
Data
App
App
App
App
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
What is Web 2.0?
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
What is Web 2.0?
http://en.wikipedia.org/wiki/Image:Web20buzz.png
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Some web-sites examples
Share your bookmarks: http://del.icio.us/
Manage your tasks: http://www.rememberthemilk.com/
Share your photos: http://www.flickr.com/
Find a place: http://maps.google.com/
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
The Seven Key Principles
The web as a platform
Harnessing Collective Intelligence
Data is the Intel Inside
End of the software release cycle
Lightweight programming models
Software above a single device
Rich user experiences
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
The Seven Key Principles
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #1 – Web as a platform
Benefits– Great number of users
– You don’t need to upgrade the software, just update the site
– Social Networking – allowing user interaction
Sharing services– “here is our API”
– Reuse existing services
– SOA and Web2.0 = WOA
Blogging– RSS (really simple syndication) feeds let users
subscribe blogs and news sites
– Permalinks are URLs pointing to the same information permanently
– Comments and trackbacks promote discussion
Support “The Long Tail” Keep reduced costs Customer can buy products that is not sell
in ordinary stores Examples:
– Product exchange for few dollars
– Create and share movies
– Paid jobs for less than 10 cents (http://www.mturk.com)
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #2 – Harnessing Collective Intelligence
Wikipedia: the free encyclopedia where any user can add content
Google: ratting pages
Del.icio.us: tagging
Amazon: reviews and recommendations
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #3 - Data is the “Intel Inside”
Service value is data-oriented
Example: del.icio.us - http://del.icio.us/help/api
Example: Amazon– Gets the ordinary information from the same
source as the others (ISBN)
– Adds images, TOCs and examples
– Editorial reviews
Mash-up– The Right to Re-mix, Some Rights reserved
– Combining data from multiple sources to provide additional value
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #4 - End of the software release cycle
Operations must become a core competency Users must be treated as co-developers No need to wait to have a full product to release it Balance number of features for a beta and stability to
satisfy the users Use the “Blogosphere” to divulge
Example: Gmail
“Test Driven Development” – first write the test script, then write some code
– iterate until the test passes
– Ends with a huge “Test Suit”
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Perpetual Beta
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #5 - Lightweight programming models
Keep it simple / Fix the simple issues– Make some users happy :D
Web Services lightweight approach:– Representational State Transfer (REST), simpler than SOAP.
– Don’t use HTTP as transport layer for a webservice, but be the webservice.
– With REST, each resource/object has its own URL
“RSS has become the most widely deployed single web service because of its simplicity”
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #6 - Software above a single device
Even “Desktop” applications can enjoy the power of the web– iPod / iTunes
PC can be used as cache and music manager
iTunes Store allows users to buy music for $0.99
– BitTorrent
Each client is also a server
Anyone can download
– Google Earth
Web content for portable devices– Cell phones
– PDA
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #7- Rich user experiences
AJAX = Asynchronous JavaScript And XML
AJAX is not new, it is a combination of existing technologies: XMLHttpRequest, JavaScript, CSS, XML
Asynchronous, allows the page requests to refresh only pieces instead of the hole page
– Response in HTML, JavaScript or XML
– Change or add page elements (div, table, or any other tag)
– Reduce the data traffic
– Non-blocking events; other events will continue to work while change is occurring
You have to think about using AJAX during the solution planning
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Principle #7- Rich user experiences
An ordinary example: Hello World using prototype:<script src="/javascripts/prototype.js" type="text/javascript"></script>
<a href="#" onclick="new Ajax.Updater(‘hello_results', '/search/hello', {asynchronous:true, evalScripts:true}); return false;">HelloWorld</a>
<div id=“hello_results“></div>
Usability–Create friendly sites with AJAX
–There is no need to use AJAX for each event
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Some IBM initiatives
w4 – http://w4.ibm.com
Fringe - http://w4.ibm.com/bluepages
SmallBlue - https://smallblue.watson.ibm.com/SmallBlue/
w3ki - https://w3.webahead.ibm.com/w3ki/
dogear - https://dogear.webahead.ibm.com
Blue card - http://w3.webahead.ibm.com/prototype/bluecard.htm
IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Some IBM initiatives
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IBM Global Business Services
Web 2.0 – An Overview | October 2008 | Confidential © 2008 IBM Corporation
Summary
Web sites created and/or enriched by a community – the users add the value through their input: comments, recommendations, tags
Web user interfaces that act more like applications (using technology such as AJAX)
Web sites that “feed” other websites (using technology such as RSS and Atom)
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Confidential | October, 2008 © 2008 IBM Corporation
Questions (?)
Thank you!