Glossary of Terms
Practical maintenance terms, CMMS language, reliability abbreviations, and plant maintenance definitions in one place.
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399 terms shown
Redundancy
Redundancy is the provision of additional equipment, components, or paths so a required function can continue when one element fails.
Reliability Block Diagram
A reliability block diagram is a visual model showing how component success or failure affects the ability of a system to perform its required function.
Reliability Growth
Reliability growth is the improvement of equipment or system reliability through testing, failure discovery, analysis, design correction, and verification.
Reliability-Centered Maintenance
Reliability-Centered Maintenance, or RCM, is a structured method for selecting maintenance and risk-control tasks based on asset functions, failure modes, consequences, and technically effective actions.
Remaining Useful Life
Remaining Useful Life is an estimate of how long an asset or component can continue performing acceptably before repair, replacement, or failure.
Reorder Point
A reorder point is the inventory level at which replenishment should be initiated so expected demand can be covered during supplier lead time.
Reorder Quantity
Reorder quantity is the number of spare parts or units ordered when inventory replenishment is triggered.
Repair or Replace Analysis
Repair or replace analysis compares the cost, risk, performance, supportability, and lifecycle impact of restoring an asset versus replacing it.
Repairable Spare
A repairable spare is a component that can be removed, restored, tested, and returned to stock for future installation.
Repeat Failure
A repeat failure is the recurrence of the same or closely related failure on an asset within a defined review period.
Repeat Work Percentage
Repeat Work Percentage is the share of maintenance work that must be performed again because the original issue recurred or was not fully resolved.
Replacement Asset Value
Replacement Asset Value is the estimated current cost of replacing an asset or asset base with an equivalent capability.
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