Reliability Availability Maintenability | RAM

Reliability Availability Maintainability or RAM is a key measure of a maintenance activities optimization strategy.


Reliability refers to MTBF performance and focuses on "machine" times.


Maintainability refers to MTTR performance and focuses on "staff" times.


Availability is a product of the two previous indices and reveals the ability of equipment to meet its production function.

Related definitions

Maintenance Time To Repair | MTTR Maintenance Time Between Failure | MTBF Maintenance Repair & Overhaul | MRO Maintenance in Operational Condition | MOC