also: カットオーバ
noun
cutover; system migration; switch to new IT equipment
Technical IT term for the process of switching from an old system (hardware/software) to a new one, often involving a planned transition.
新しいサーバーへのカットオーバーは来週の予定です。
The cutover to the new server is scheduled for next week.
カットオーバー時
Data migration will be performed at the time of cutover.