Definitions for "Parallel Testing"
test in which the new system and the concurrent systems are run simultaneously.
Refers to processes that occur simultaneously. A PeopleSoft payroll and an AHRS payroll were run using the same data - this is an example of parallel testing. These results were then compared to reconcile any differences prior to "Go Live".
a procedure in which both an old and a new data processing system are fed the same input data and the results are compared