問題文
A hospital's billing system fails at midnight and an engineer applies a fix directly to production to restore service. The change management policy requires prior approval for every change. What should the policy provide for a situation like this?
選択肢
- A blanket prior approval that covers the recurring repairs and removes the individual assessment beforehand, with the granted permission renewed within a stated period.
- A separate test environment that mirrors the production platform and receives the proposed correction beforehand, with the verified result promoted within a stated period.
- A scheduled maintenance window that groups the pending repairs and defers the urgent correction overnight, with the affected service restored within a stated period.
- A defined emergency route that allows the immediate repair and requires the documented approval afterwards, with the recorded justification reviewed within a stated period.