1. Intranet and Extr anets
Presentation by :-
MD NURUDDIN
KAMAL JAIN
B.Tech(BIOTECH)
1st YEAR
SHARDA
UNIVERSITY

2. Intranet

3. 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
© 2007 Prentice-Hall, Inc 4-3

4. 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

5. Intranet Security
Two levels of Security required:
 Internal
It can be imposed by Public Key Security &
Encryption Key.
 External
Through Firewall.

6. 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.

7. 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
© 2007 Prentice-Hall, Inc 4-7

8. Virtual Private Network
Fundamentals of Information
8 Systems, Second Edition

9. 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

10. 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

11. Disadvantages
Management
problem  Fear of sharing information and the loss of control
 Limited bandwidth for the business
Security  Unauthorized access
problem  Abuse of access
 Denial of service
Productivity  Information overload lowers productivity
problem  Hidden or unknown complexity and costs

12. Extrane
t

13. 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

14. 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.

15. 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.

16. Enterprise Collaboration Tools
Enterprise Collaboration Tools
Data Discussion
Conferencing Forums
Groupware
Voice Enterprise
Chat Systems
Conferencing Collaboration
Tools
Electronic Meeting
Videoconferencing
Systems
pg. 16

17. 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.

18. 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.

19. Layered System View
Intrane Corporate members
t
Extranet Clients, partners, customers
Interne Global society: competitors
t

20. Questions

21. Y ou
a nk
Th