A method for detecting unreliable response conditions in a plurality of
back-end transaction processing systems also can include the steps of:
reading a list of references to a plurality of subscribing e-commerce
systems; generating and dispatching placebo transactions to each
e-commerce system in the list; receiving responses to the dispatched
placebo transactions; computing transaction latency data based upon when
each placebo transaction is dispatched to a subscribing e-commerce
system, and when a corresponding response is received; and, notifying
individual subscribing e-commerce systems when computed transaction
latency data for the individual subscribing e-commerce systems indicates
an unreliable response condition in an associated back-end transaction
processing system.