Web 2.0 is the business revolution in the computer industry caused ...

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5 Φεβ 2013 (πριν από 4 χρόνια και 2 μήνες)

101 εμφανίσεις

Štefan PERO

AIS 20.4.2010

What is

Web 1.0?



statical web pages



contains informations to one use


no reason to comeback



not interactive web pages


visitors can only view this pages


not edit and participate on it



patented applications of web 1.0


users can use it, but not change


“invisibile” source



What is Web 2.0?


the term Web 2.0 is
asociated

with:


information sharing


interoperability


user
-
centered design


collaboration



not exist fixed definition

“Web 2.0 is the business revolution in the computer industry caused
by the move to the internet as platform, and an attempt to
understand the rules for success on that new platform. Chief among
those rules is this:
Build applications that harness network
effects to get better the more people use them.
(This is what
I've elsewhere called "harnessing collective intelligence.")”

Tim

O
´
Reilly



O'Reill
y about Web 2.0



web as platform


example: Google


multi
-
platform service (access from pc, mobile…)


not include to commercial industry


includes specialized databases of informations (search)


democratization of the web


web is not TV


interaction between users(readers) and author


open
-
source


modification and creating applications


distribution of informations


sharing (blogs)

O'Reill
y: The web as platform

Web 1.0 vs. Web 2.0

Web 1.0 vs. Web 2.0

Technology overview

I


web 2.0 draws together the capabilities of client
-

and
server
-
side software



content syndication and the use of network protocols



standards
-
oriented 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

Technology overview

II


features and techniques:


search

(finding information through keyword search)


links

(connects information together into a meaningful information
ecosystem using the model of the web, and provides low
-
barrier social
tools)


authoring

(the ability to create and update content leads to the
collaborative work of many rather than just a few web authors. In wikis,
users may extend, undo and redo each other's work. In blogs, posts and the
comments of individuals build up over time)


tags

(categorization of content by users adding "tags"
-

short, usually one
-
word descriptions = to facilitate searching, without dependence on pre
-
made categories. Collections of tags created by many users within a single
system may be referred to as "folksonomies)


extensions

(software that makes the Web an application platform as well as
a document server)


signals

(the use of syndication technology such as RSS to notify users of
content changes)


How it works


typically technologies:


AJAX (
Asynchronous JavaScript and XML
)


Adobe Flash and the Adobe Flex framework


JavaScript/Ajax frameworks such as Yahoo! UI Library, Dojo
Toolkit, MooTools, and jQuery


DOM


PHP, Ruby, ColdFusion, Perl, Python, JSP and ASP


server site (are used to dynamically output data using informations
from files and DB)


typically format of data: JSON, XML


to share data with other sites


to communication between client
-

server


Ajax


ajax

isn't a technology. It's really several technologies, each
flourishing in its own right, coming together in powerful
new ways. Ajax incorporates:


standards
-
based presentation using XHTML and CSS;


dynamic display and interaction using the Document
Object Model;


data interchange and manipulation using XML and XSLT;


asynchronous data retrieval using XMLHttpRequest;


and JavaScript binding everything together.


Core competencies of Web 2.0


services, not packaged software, with cost
-
effective
scalability


control over unique, hard
-
to
-
recreate data sources
that get richer as more people use them


trusting users as co
-
developers


harnessing collective intelligence


leveraging the long tail through customer self
-
service


software above the level of a single device


lightweight user interfaces, development models, and
business models


Bibliography


Jesse Feiler: How to do Everything with Web 2.0 Mashups


Miltiadis D. Lytras
,
Ernesto Damiani
,
Patricia Ordóñez de
Pablos
: Web 2.0 The Business Model


Eric van der Vlist, Alessandro Vernet,

Erik Bruchez, Joe Fawcett,
and Danny Ayers
: Professional Web 2.0 Programming (Wrox
Professional Guides)


http://oreilly.com/pub/a/web2/archive/what
-
is
-
web
-
20.html?page=5


http://en.wikipedia.org/wiki/Web_2.0#Characteristics


http://www.practicalecommerce.com/articles/464
-
Basic
-
Definitions
-
Web
-
1
-
0
-
Web
-
2
-
0
-
Web
-
3
-
0


http://go
-
digital.net/blog/2009/06/what
-
is
-
web
-
30
-
characteristics
-
of
-
web
-
30/

Thank you for attention