Which method allows for a system to be tested in a smaller, controlled environment before full implementation?

The method that allows for a system to be tested in a smaller, controlled environment before full implementation is Pilot Running. This approach involves deploying the new system to a limited segment of the organization or a specific user group to evaluate its performance, reliability, and user acceptance in a real-world scenario. By doing so, any issues can be identified and addressed before a full roll-out, minimizing risks associated with the complete implementation.

Pilot Running is particularly advantageous because it provides valuable feedback and insights, allowing for adjustments based on the experiences of users in the pilot group. This strategy cultivates a more informed rollout based on real data rather than assumptions, ultimately enhancing the chances of success for the new system.

In contrast, other methods don't focus on this controlled testing environment. Direct Changeover, for instance, switches to the new system all at once without prior testing, which can lead to significant risks if problems arise. Parallel Running involves running the new and old systems simultaneously, which can be resource-intensive and doesn't allow for the isolated testing premise that pilot running offers. Phased Implementation breaks the rollout into segments but doesn't provide the same level of controlled testing as a pilot program does.