audit trail; activity log; history
Technical term for a record of actions or events, often used in IT, security, and system monitoring contexts.
The system keeps an audit trail of all operations.
We checked the activity log to see if there had been any unauthorized access.
ログ is a more general and common term for a log or record, while 動作記録 specifically emphasizes the recording of actions or operations, often with an audit or security nuance.
Compound of 動作 (action, operation) and 記録 (record, log).