Lecture E-Commerce - Chapter 5: The internet and the web (part III)

In this chapter, the learning objectives are: Wi-Fi technologies a review, benefits of Internet II technologies, development of the web, some initial products of the World Wide Web, markup languages, web servers and web clients, web browsers, the internet and web features that promote e commerce,...

CSC 330 E-Commerce

Teacher

Ahmed Mumtaz Mustehsan

GM-IT CIIT Islamabad

• Virtual Campus, CIIT

• T1-Lecture-5

The Internet and The Web

Chapter-2 Part-III

T1-Lecture-5

For Lecture Material/Slides Thanks to:

Copyright © 2010 Pearson Education, Inc

Wi-Fi Technologies a Review (2G)

Wi-Fi Technologies a Review (2.5 G)

Long Term

Evolution LTE

Upto 100-300 Mbps

Clearwise/Sprint

Wi-Fi Technologies a Review (4G)

Benefits of Internet II Technologies

2 Latency solutions:

 diffserv (differentiated quality of service)

 Assigns different levels of priority to packets

depending on type of data being transmitted e.g

video data needs priority

 Video on Demand (VoD) will be possible for every

client

3 Guaranteed service levels and lower error rates

 possible to purchase the right to move data through the network at a guaranteed speed in return for

higher fees

 Improved capacity and packet switching will inevitably impact quality of data transmissions, reducing error rates and boosting customer satisfaction

Benefits of Internet II Technologies

4 Declining Costs

As the Internet pipeline is upgraded, the availability of broadband service will expand beyond major metropolitan areas, significantly reducing the costs of access

More users means lower cost, as products and

technology catch on in the mass market

Both broadband and wireless service fees are expected

to decline as geographic service areas increase, in fact due to competition for the business

Bandwidth Demand of various web Applications

Development of the Web

1989–1991: Web invented

 Tim Berners-Lee at CERN

 HTML, HTTP, Web server, Web browser

1993: Mosaic Web browser w/GUI

 Andreessen and others at NCSA

 Runs on Windows, Macintosh, or Unix

1994: Netscape Navigator,

 First commercial Web browser

 Andreessen, Jim Clark

1995: Microsoft Internet Explorer

1-Some initial products of the World Wide Web

Mosaic

Web browser with a graphical user interface (GUI)

that made it possible to view documents on the Web

graphically

Universal computing

The sharing of files, information, graphics, sound,

video, and other objects across all computer platforms

in the world, regardless of operating system

Text formatted with embedded links

◦Links connect documents to one another, and to

other objects such as sound, video, or animation

1-Markup Languages

Generalized Markup Language (GML)—1960s

The concept behind document formatting was

actually first floated in 1960

Standard Generalized Markup Language (SGML) early GML,1986

The purpose of SGML was to help very large

organizations format and categorize large collections of documents and run independent of any s/w program

Hypertext Markup Language (HTML)

one of the next generation of GMLs that is relatively easy to use in Web page design HTML provides Web page designers with a fixed set of markup “tags” that

are used to format a Web page

1-Markup Languages

eXtensible Markup Language (XML)

a markup language specification developed by the

W3C (World Wide Web Consortium)

Data and Tags designed to describe data are

provided/labled by the users

1-Web Servers and 1-Web Clients

Web server software:

that request this service by sending an HTTP request examples:

Apache and Microsoft IIS The Basic capabilities include:

person trying to access the site is authorized to do so.

permission granted.

easy keyword searching of the site’s content.

and time of each visit, and which specific pages were accessed.

1-Web Servers and 1-Web Clients

Web server

information with a database.

advertisments

Web client:

making HTTP requests and displaying HTML pages most

commonly a Windows PC or Macintosh

1-Web Browsers

Primary purpose to display Web pages

Internet Explorer (67%) and Firefox (23%) dominate the market

Other browsers include:

1-The Internet and Web Features that Promote

Intelligent agents (bots)

Online forums and chat

Streaming media

Cookies

Most used application of the Internet

Uses series of protocols for transferring messages

with text and attachments (images, sound, video clips, etc.,) from one Internet user to another

Most of the marketing campaigns runs on mail so mail can be an effective marketing tool

e-Attachment: a file inserted within an e-mail message

1-Instant Messaging

Displays words typed on a computer almost instantly, and recipients can then respond immediately in the same way

Different proprietary systems offered by AOL, MSN, Yahoo, and Google

Meebo, Digsby: allow users to communicate across platforms of messengers

Businessmen use IM as a client support

1-Search Engines

Identify Web pages that match queries based on

one or more techniques

◦Keyword indexes, page ranking

Also serve as:

◦Shopping tools

◦Advertising vehicles (search engine marketing)

◦Tool within e-commerce sites

Outside of e-mail, most commonly used Internet

activity

1-How Google Works

1-Top Five search Engines

Intelligent Agents (Bots)

Software programs that gather and/or filter

information on a specific topic and then provide a

1-Intelligent Agents (Bots)

Online Forums and Chat

Online forum:

◦AKA message board, bulletin board, discussion

group, board, or forum

◦Web application that enables Internet users to

communicate with each other, although not in

real time

◦Members visit online forum to check for new

posts

Online chat:

◦Similar to IM, but for multiple users

◦Typically, users log into chat room

1-Streaming Media

Enables music, video, and other large files to be sent

to users in chunks so that when received and played, file comes through uninterrupted

Allows users to begin playing media files before file

is fully downloaded

a tool used by Web sites to store information about

a user When a visitor enters a Web site, the site

sends a small text file (the cookie) to the user’s

computer so that information from the site can be

loaded more quickly on future visits The cookie

can contain any information desired by the site

designers

Can help personalize Web site experience

Can pose privacy threat

1-Web 2.0 Features and Services

Blogs

◦Personal Web page that typically contains a

series of chronological entries by its author, and

links to related Web pages

Really Simple Syndication (RSS)

◦Program that allows users to have digital content automatically sent to their computers over the

Internet

1-Web 2.0 Features and Services

Podcasting

movie, or simply personal audio presentations stored as an

audio file and posted to

the Web Wikis

content on a Web page

New music and video services

1-Web 2.0 Features and Services

IP telephony

Internet’s packet switched network to transmit voice and other

forms of audio communication over the Internet

Voice over Internet Protocol (VoIP)

of audio communication over the Internet.

Internet Television (IPTV)

programming to the home

1-Web 2.0 Features and Services

Online software and Web services

full-function applications, to much smaller chunks of code called

MySpace pages or Facebook page.

first six month.

code that usually supply a single limited function such as a clock, calendar, or diary

M-commerce applications

◦Beginning to take off

1-Thank You