Intranet and Extranets

Presentation by :- MD NURUDDIN KAMAL JAIN

B.Tech(BIOTECH)

1st YEAR

SHARDA UNIVERSITY

Intranet

4-3© 2007 Prentice-Hall, Inc

What Is an Intranet?• An intranet delivers collaboration and coordination

to employees around the clock– Communication system designed by technical staff– Focus is the message, not the media

• Normally runs in a client/server environment and a local area network configuration

• Separated from other networks by firewalls, a means of preventing unauthorized access to the company’s internal data or leaks of sensitive company information

What is Intranet ?

Internal company network that uses Internet standards (HTML, HTTP & TCP/IP protocols) & software.

Accessed only by authorized persons, especially members or employees of the organization

Intranet = Network + Information Resource + Information Services

Intranet Security

Two levels of Security required:

Internal

It can be imposed by Public Key Security & Encryption Key.

External

Through Firewall.

What is Firewall ?

Security device located between firm’s internal network (intranet) & external network (internet).

Regulates access into & out of a company’s network based on a set of rules.

Note : needs to be upgraded from time to time to check latest potential security problems.

4-7© 2007 Prentice-Hall, Inc

Strategic Significance

• A cost-effective way of distributing information throughout an organization

• Links employees and managers around the clock and automates a lot of intraorganizational traffic

• Makes it possible for a company to gain better access to its primary resource - the knowledge and experience of decision makers

• Enables easier integration of processes

Fundamentals of Information Systems, Second Edition8

Virtual Private Network

Applications of Intranet

Sharing of company policies/rules & regulations

Sharing of information of common interest Access product & customer data Launching of personal/departmental home

pages Submission of reports Corporate telephone directories

Advantages of intranet

Fast, easy, low-cost to implement Based on open standards Connectivity with other systems Easy to learn and use Hypertext links Access to internal and external information Improves communication

Disadvantages

Information overload lowers productivity Hidden or unknown complexity and costs

Productivity

problem

Unauthorized access Abuse of access Denial of service

Security

problem

Fear of sharing information and the loss of control Limited bandwidth for the business

Management

problem

Extranet

What is Extranet ?

Extranet is an Intranet for outside authorized users using same internet technology.

Inter-organizational information system.

enable outsiders to work together with company’s employees.

open to selected suppliers, customers & other business partners

Examples..

Dealers/distributors have access to product files such as :-

1. product specification,

2. pictures,

3. images, etc.

to answer the queries of the customer.

Components of extranets ..

Some basic infrastructure components such as the internet Including :-

TCP/IP protocols, E-mail, Web-browsers, External business partners & Tele-commuting employees place order,

check status & send E-mail.

pg. 16

Enterprise Collaboration ToolsEnterprise Collaboration Tools

Data Conferencing

Videoconferencing

DiscussionForums

Electronic MeetingSystems

VoiceConferencing Chat Systems

Groupware Enterprise

CollaborationTools

Benefits of Extranet

Improved quality. lower travel costs. lower administrative & other overhead costs. reduction in paperwork. delivery of accurate information on time. improved customer service. better communication. overall improvement in business

effectiveness.

Disadvantages

The suppliers & customer who don’t have technical knowledge feel problem.

Faceless contact. Information can be misused by other competitors. Fraud may be possible. Technical Employees are required.

Clients, partners, customers

Layered System View

Intranet

Extranet

Internet

Corporate members

Global society: competitors

Questions

Thank You