What Conversion method involves running both the new and old systems simultaneously?

The parallel strategy is a conversion method where both the new and old systems operate simultaneously for a period of time. This approach allows organizations to compare the outputs of both systems and ensure that the new system is functioning correctly before fully discontinuing the old one.

One of the primary advantages of this method is the reduction of risk; if any issues arise with the new system, the old system remains in place and can continue to support operations. Additionally, it grants users and staff the opportunity to gradually become accustomed to the new system while still retaining access to the familiar old system, which can help to smooth the transition.

This method is particularly beneficial in critical environments where system accuracy and reliability are paramount, as it provides a safety net during the implementation phase. Hence, the parallel strategy is an effective way to mitigate risks associated with transitioning to a new system.