Translation guide
MTTR (Mean Time To Repair) is a technical metric used in maintenance and reliability engineering. This guide helps you express the concept naturally in Japanese business and technical contexts.
The average time required to repair a system or component and return it to operational status.
In IT service management, the average time to recover from a failure, including detection, diagnosis, and restoration.
Used in ITIL and service management contexts. Emphasizes restoring service.
In customer support or incident management, the average time to first respond to a reported issue.
Used when MTTR refers to response time rather than repair time. Clarify context.
Do not translate MTTR word-for-word as 「修理までの平均時間」. Use the established terms above.
MTTR can mean repair, recovery, or response. Choose the Japanese term that matches the specific metric. When in doubt, use 平均修復時間 for physical repairs and 平均復旧時間 for IT services.
Standard Japanese translation of MTTR. Widely understood in engineering and maintenance fields.
The MTTR for this system is 2 hours.
Also common, especially when emphasizing the repair action rather than restoration.
We need to reduce the MTTR.
The English acronym is frequently used as-is in Japanese technical documents and conversations.
Please set a target value for MTTR.
We monitor the MTTR for the service.
Similar to 復旧 but can be used in broader contexts, including system performance recovery.
We calculate MTTR from the time of failure.
The support team's MTTR is 15 minutes.
Broader term for handling time, including initial response and subsequent actions.
We improved the MTTR for incidents.