Which of the following is a characteristic of parallel running?

Parallel running is a method often used during system implementation where both the old and new systems operate simultaneously for a period of time. This approach allows organizations to measure and compare the performance of the new system against the existing one. A key characteristic of parallel running is that transactions must be entered into both systems, which ensures that accurate data is maintained across both platforms during the transition period. By doing this, organizations can verify that the new system is functioning correctly and that it can handle all transactions as expected before completely phasing out the old system.

This method helps to mitigate risks associated with the deployment of new systems, particularly in terms of continuity of service, as it provides a fallback option should issues arise with the new system. The dual entry of transactions allows for verification and validation of the new system through direct comparison with the outcomes from the old system.

In contrast, minimizing implementation costs, increasing service interruption risk, and bypassing business acceptance testing are not inherent traits of parallel running, making those options less suitable in this context.