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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