Web 2.0

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