Which group best evidences the success of a system implementation and rollout?

• A. End users
• B. Expert analysis
• C. Technical staff
• D. Professional evaluators

Answer: (A)

The main concept being tested is whose experience most accurately shows whether a system rollout truly works in everyday practice. End users are the best evidence because they interact with the system during real workflows, so their feedback reflects usability, how well the system fits into daily tasks, and its actual impact on productivity and patient care. When clinicians and staff can complete work more efficiently, with fewer errors, and report satisfaction with the new tools, that signals real value from the implementation. While expert analysis, professional evaluators, or technical staff can provide important perspectives on performance, compliance, or uptime, these views don’t capture the lived effectiveness of the system in routine care. End users’ experiences directly demonstrate whether the rollout meets the intended goals in real-world use.