Inspection
Work Planning
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The proportion of time that an asset or system is capable of performing its required function when needed.
Availability is a reliability performance measure that expresses the percentage of time an asset, system or facility is capable of performing its intended function under stated operating conditions. It reflects the combined effects of reliability, maintainability and operational support, and is commonly measured as the ratio of operating time to total required operating time.
Availability is a key performance indicator used to evaluate operational performance, optimize maintenance strategies and assess the effectiveness of reliability improvement initiatives.
Availability is influenced by equipment reliability, maintenance effectiveness, spare parts availability and operational practices. High Availability does not necessarily indicate high reliability if frequent repairs are required to maintain operation.
Availability differs from Reliability. Reliability measures the probability that equipment will perform without failure, whereas Availability considers both failures and the time required to restore equipment to service.
Reliability Engineering; Asset Performance Management; Maintenance management; Production optimization; Performance measurement.
Measuring equipment uptime.; Comparing maintenance strategies.; Monitoring plant production performance.; Reporting operational reliability metrics.
IEC 60050-192; IEC 60300
VisualAIM connects glossary concepts to the asset records, inspection histories, and workflows they describe.
