Lesson
15: The Internet
What Is
the Internet? | The
New Business Model | Intranets
| Extranets
| E-Commerce
|
Technology
Implications of Internet Applications
Technology Implications of Internet Applications
There are real technology implications to
these new Internet applications.
First is the need for increased bandwidth. Internets, intranets,
and extranets have totally reversed the 80/20 rule so that
now 80% of the traffic is going over the backbone and only
20% is local. Everyone is clamoring for Fast Ethernet and
even Gigabit Ethernet connections.
The need for security is obvious once a company is connected
to the Internet. You cannot read the paper without hearing
about the latest hacking job.
The Internet makes VPNs possible.
And finally, EDI to enable electronic commerce.
We’ll look at each of these briefly.
Applications Need Bandwidth

The type of connection necessary depends
on the bandwidth required:
- Individual users connecting to the
Internet for e-mail or casual Web browsing can usually get
by using a simple modem.
- Power users or small offices should
consider ISDN or Frame Relay.
- Larger offices or businesses that
expect high levels of Internet traffic should look into Frame
Relay or leased lines.
- New technologies like asymmetric
digital subscriber line (ADSL) and high-data-rate digital
subscriber line (HDSL) will
make high-speed Internet access even more affordable in the
future.
Internet Security Solutions

One of the most vulnerable point in a customer’s
network is its connection to the Internet. To secure the communication
between a corporate headquarters and the Internet, a customer
needs all the integrity security tools at its disposal. These
tools include firewalls, Network Address Translation (NAT),
and encryption, token cards, and others.
Virtual Private Network

Virtual Private Networks (VPNs) can bring
the power of the Internet to the local enterprise network.
Here is where the distinction between Internet and intranet
starts to blur. By building a VPN, an enterprise can use the
“public” Internet as its own “private”
WAN.
Because it is generally much less expensive to connect to
the Internet than it is to lease data circuits, a VPN may
allow companies to connect remote offices or employees when
they could not ordinarily justify the cost of a regular WAN
connection.
Some of the technologies that make VPNs possible are:
- Tunneling
- Encryption
- Resource Reservation Protocol (RSVP)
Electronic Data Interchange (EDI)

Electronic commerce can streamline regular
business activities in new ways.
Have any of you used a fax machine to send purchase orders
to vendors?
A fax machine turns your PO into bits, transmits them across
a network, and then turns them back into atoms on the other
end. The disadvantage is that the atoms on the other end can
only be read by a human being, who probably has to retype
the data into another computer.
EDI provides a way for many companies to reduce their operating
costs by eliminating the atoms and keeping the bits.
What advantages does EDI provide your customer?
- Ensures accurate data transmission
- Provides fast customer response
- Enables automatic data transfer—no need to re-key
For example, RJR Nabisco reduced PO processing costs from
$70 to 93 cents by replacing its paper-based system with EDI.
Public key/private key encryption is created by the PGP program
(Pretty Good Privacy). It creates a public key and a private
key. Anyone can encrypt a file with your public key, but only
you can decrypt the file. To ensure security, an enterprise
may issue a public key to its customers, but only the enterprise
will be able to decrypt a message using the private key.
- SUMMARY -
The Internet has created the capability for
almost ANY computer system to communicate with any other.
With Internet business solutions, companies can redefine how
they share relevant information with the key constituents
in their business—not just their internal functional
groups, but also customers, partners, and suppliers.
This “ubiquitous connectivity” created by Internet
business solutions creates tighter relationships across the
company’s “extended enterprise,” and can
be as much of a competitive advantage for the company as its
core products and services. For example, by allowing customers
and employees access to self-service tools, businesses can
cost effectively scale their customer support operations without
having to add huge numbers of support personnel. Collaborating
with suppliers on new product design can improve a company’s
competitive agility, accelerate time-to-market for its products,
and lower development costs. And perhaps most importantly,
integrating customers so that they have access to on-time,
relevant information can increase their levels of satisfaction
significantly. Recapping:
- Internet access can take a business into new markets, decrease
costs, and increase revenue through e-commerce applications.
It can attract retail customers by providing them with company
information and the ability to order online.
- Intranets can provide your employees with access to information
and help compress business cycles.
- Extranets enable effective management of your supply chain
and transform relationships with key partners, suppliers,
and customers.
- Voice/data integration can save companies significant amounts
of money and, at the same time, enable new applications.
- All of these applications reduce costs and increase revenue.
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