What is a Short Duration Transaction Network?
Short Duration Transaction Networks support mission critical transactions
such as EFTPOS and ATM traffic. These networks have three key characteristics
high call rates, short call duration, and high peak loads. Their typography
generally consists of centralised processing systems accessed by hundreds and
even thousands of connections per minute. These call rates can create havoc
with data communications equipment using centralised call processing.
Short duration transactions can be very short call durations typically two
to three seconds for the actual transaction and network access equipment used in
Short Duration Transaction Networks need to be able to handle the resulting call
setup and termination loads reliably.
Short Duration Transaction Networks that support point of sale financial
transactions such as credit card, loyalty and ATM card generally have very high
peak to average load ratios, not only during the day but at different times
during the week, month and year. It is critical that the network is designed to
accommodate the busiest minute in the year and still retain an acceptable level
of availability redundancy.
Well designed Short Duration Transaction Networks contain the following
They also provide the following functionalities
Network protocol conversion
Multiple host routing
Limited real-time processing
Real-time network performance reporting
Historical data analysis and reporting
Whilst Short Duration Transaction Networks have typically been used for
financial transactions there is a growing trend to either piggyback new
applications onto existing financial Short Duration Transaction Networks or to
create new networks for the following applications:
Just as we have telephone, Internet, cable TV networks that need to be
designed and deployed to optimise their owners resources and to minimise their
risk and costs, the SDTN needs to be designed and deployed with great
consideration to the applications that will be running on them and the
technologies that are available today and tomorrow.