Reliability:
Consistent delivery throughout the network.
Performance:
Guaranteed delivery time of messages.
Security:
Traffic can't be tampered with.
Authentication:
The sender and receiver of a message can be
identified unambiguously.
Nonrepudiation:
A receipt function reveals that messages
were accepted by the intended trading
partner.
PRO-INTERNET
Costs:
ISPs charge a low flat rate (between $20 and
$500 per month), whereas VAN carriers charge
high usage fees.
Global reach:
The Internet's ubiquitous access widens the
potential pool of trading partners.
Access to the customer:
With home users surfing the Web, companies
have direct access to them.
VANs vs. the Internet
