"Don't Even Think of HTML, Servers, or
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THE BASIC CONCEPT
What's an Intranet?
An Intranet
is a network of computers within a corporation or
portion of a corporation. The computers are connected to each other by
means of the Internet Protocol. This internal network is separated from
other networks and computers outside by "firewalls." Firewalls, in effect,
act as a moat separating the Intranet from other networks and other
computers. The firewall is a means of preventing unauthorized access to
the internal network from the outside. The Intranet is a protected
neighborhood of computers within the larger city of the Internet. When you
allow access to someone else. s Intranet, that site becomes an Extranet
for your users.
A computer Local
Area Network (LAN) has
geographic boundaries usually defined by the routing of a special cable to
which all computers on the LAN are connected. Since burying cables across
streets is expensive, this normally means the LAN is restricted to a
floor, a building, or a campus. An Intranet has no such boundaries and is
available wherever standard telephone lines can be found.
IP (Internet Protocol)
is built
to run on telephone lines, not big cables. Intranets can. t replace LANs
entirely because of another major difference . speed. If data were water,
computers on a LAN would be connected by pipes about a foot in diameter;
on the Internet they would be connected by 1 inch pipes. As a result,
applications meant to run on a LAN would die a slow, horrible death if
they were run on the Web.
Wide Area Networks (WANs)
are
groups of Local Area Networks connected with large pipes, expensive
telephone lines. Since the Internet is not a large pipe, it. s not much
help for connecting WANs to one another. Wide Area Networks will never
replace the Internet because of their geographic limitations and the
expense of large pipes.
Understand these schematic and
technical concepts, but begin your planning with the commitment to create
a network of people who happen to be using an invisible network of
machines to serve those people.
Eric Brown founded his consulting firm Communication Associates in 1980. His clients include major Fortune 500 companies who use his presentation design, communication training, writing services, and web expertise in many contexts. He is author of Throw Away Your Pencil: Writing with a Word Processor (Prentice-Hall), of The FedEx Personnel Division Intranet Style Book, is a Houghton Mifflin Finalist, a writer for Hearst publications, and many professional journals.
James W. Candler
is currently Vice President of Personnel Systems and Support at Federal Express where he has worked for the last 18 years. In that time he has been responsible for the design, development, and maintenance of the company's on-line, reql-time human resource information system called PRISM. PRISM has resulted in all employees being able to access personal, benefit, and similar HR information at the stroke of a key. Most recently he has led the development of Personnel.link, the FedEx Personnel Division corporate Intranet.He has presented across the nation and written frequently for IHRIM.link: A Publication of the Association of Human System Professionals where he has also served as editor.