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Seminar and presentation on Web 2.0
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Bharati Vidyapeeth Deemed UniversityCollege Of Engineering, Pune
By SRIJAN BOSE
B-Tech Computer-II Semester- VII
Roll No: 48
Under the Guidance of:
Prof. Sachin WakurdekarDEPARTMENT OF COMPUTER ENGINEERINGB.V.D.U. COLLEGE OF ENGINEERING, PUNE
2011-2012
A Seminar report on
Web 2.0
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.
The world wide web
The Web's historic logo was designed by Robert Cailliau
WWW invented by Tim Berners- Lee
New technologies are transforming the way people use the world wide web
Web 2.0Rich User experience
Feeds
Podcast
Social networks
AJAX
WIKI
API’sBlogs
User generated contentTags
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
Origin of Web 2.0
Tim O’Reilly
Web 2.0
Web 2.0 called Read/Write Web
Web Browser based ApplicationSocial Networking- Connecting, Sharing, Collaborating
Participatory media. Creating content :Uploading photos, Music, Videos, Tagging, commenting, Blogging
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.
•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.
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.
Web 2.0Creation of
Web 2.0 is the common term that is used to differentiate today’s internet.
New media and tools for a Web 2.0 worldBlogs : 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.
Web 2.0 websites include the following features
SearchFinding information through keyword search.
LinksConnects information together into a meaningful information ecosystem using the model of the Web.
AuthoringThe ability to create and update content leads to the collaborative work of many rather than just a few web authors.
TagsCategorization of content by users adding "tags"—short, usually one-word descriptions—to facilitate searching
Most Popular Site
Yahoo! Google Myspace
Microsoft Network (MSN)
EBay YouTube WikiPedia Amazon.com Craigslist.org facebook Windows Live Blogger.com
Orkut.com Google India Rediff.com Naukri.com Rapidshare.com
What does it look like ??
Personal Homepage and social Networking
Share Your Photos
To Write a Blog
To upload and share videos
Del.icio.us is an Example of a Site that Uses a “Folksonomy” to Organize
Bookmarks
Wikipedia is a Collaborative Dictionary Being Edited in Real time by Anyone
Phones
WebcamsMusic Player
ExpressInteract Stay
connected
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
Captureharvest
Internet is forever
& store information
Digital Footprints
Source
PathDestinati
on
Information deleted isCached
Stored
Millions of
snapshots
Digital footprints can be Damaging
Internet is a public placeAnonymity is a myth
Posted Or
Can be identified by* Internet service provider* Foreign governments* Marketers
What you see online is not all reality
Real World
Digital World
Cyber bullies
Scammers
Hackers
Different from
Risks of web 2.0 includes
Contact with strangers and bullies
Identity theft for posting personal info.
Damage to reputation
Access to inappropriate content
Web 1.0 Vs Web 2.0
Free HostingStatic Pages
HTML50k Bandwidth
Reading Information
Social mediaUser generated content
Virtual communityWeb Applications
Blogs 1Mb Bandwidth
CHOOSE THE CONTENT AND PUT ON YOUR SITE
WEB 1.0
WEB 2.0
AdSence read your site and accordingly recommends adds for the site
WEB 1.0
Need to upload photos
WEB 2.0
Upload and share photos
Attributes of Web 2.0
Rich user experience user participation dynamic contentMetadata
web standards scalability
openness freedom
Web 2.0 websites allow users to do more than just retrieve information.
It provide user with :
More User Interface Software Storage facility
Why Web 2.0 is called Network as a Platform ?
Technologies
For web 2.0 development
AJAXAdobe Flash
Adobe flex framework
Traditional HTTP 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
AJAX-based Processing
AJAX-based Processing
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.
Adobe Flex
Concepts
Web 2.0 can be described in 3 parts
Rich Internet Application (RIA) Service Oriented Architecture(SOA) Social Web
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).
Housingmaps.com for finding homes that are for sale or rent in37 different countries in US
Creating “Mashups” or “Remixes” that combine 3rd party data and information in innovative ways using the Web 2.0 technologiy
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.
As more and more number of users uses it , it keeps on getting better and better.
Tim O’Reilly on web 2.0from O’Reilly Media
Web 2.0 is about write Ones and read Many
Interaction
More advancement in the Web 2.0 technologyCommunication between different devices
or different appliances
Presence of Web will be More
Visibility of web will be Less
Will be present in everyday appliances
CriticismTim 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
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
Thank You