SN EN 13306 : 2010

Foreword
Introduction
1 Scope
2 Fundamental terms
   2.1 Maintenance
   2.2 Maintenance management
   2.3 Maintenance objectives
   2.4 Maintenance strategy
   2.5 Maintenance plan
   2.6 Required function
   2.7 Dependability
   2.8 Maintenance supportability
3 Item related terms
   3.1 Item
   3.2 Asset
   3.3 Repairable item
   3.4 Repaired item
   3.5 Consumable item
   3.6 Spare part
   3.7 Indenture level
4 Properties of items
   4.1 Availability
   4.2 Reliability
   4.3 Maintainability
   4.4 Conformity
   4.5 Durability
   4.6 Redundancy
   4.7 Active redundancy
   4.8 Standby redundancy
   4.9 Useful life
   4.10 Rate of occurrence of failure
5 Failures and events
   5.1 Failure
   5.2 Failure cause
   5.3 Wear-out-failure
   5.4 Ageing failure
   5.5 Degradation
   5.6 Common cause failure
   5.7 Primary failure
   5.8 Secondary failure
   5.9 Sudden failure
   5.10 Failure mechanism
6 Faults and states
   6.1 Fault
   6.2 Fault masking
   6.3 Latent fault
   6.4 Partial fault
   6.5 Fault mode
   6.6 Actual state
   6.7 Up state
   6.8 Degraded state
   6.9 Down state
   6.10 Disabled state
   6.11 External disabled state
   6.12 Operating state
   6.13 Idle state
   6.14 Standby state
   6.15 Hazardous state
   6.16 Shut-down
7 Maintenance types and strategies
   7.1 Preventive maintenance
   7.2 Scheduled maintenance
   7.3 Predetermined maintenance
   7.4 Condition based maintenance
   7.5 Predictive maintenance
   7.6 Corrective maintenance
   7.7 Remote maintenance
   7.8 Deferred maintenance
   7.9 Immediate maintenance
   7.10 On line maintenance
   7.11 On site maintenance
   7.12 Operator maintenance
8 Maintenance activities
   8.1 Inspection
   8.2 Monitoring
   8.3 Compliance test
   8.4 Function check-out
   8.5 Routine maintenance
   8.6 Overhaul
   8.7 Rebuilding
   8.8 Repair
   8.9 Temporary repair
   8.10 Fault diagnostic
   8.11 Fault localization
   8.12 Improvement
   8.13 Modification
9 Time related terms
   9.1 Up time
   9.2 Down time
   9.3 Operating time
   9.4 Required time
   9.5 Standby time
   9.6 Idle time
   9.7 Maintenance time
   9.8 Preventive maintenance time
   9.9 Corrective maintenance time
   9.10 Active maintenance time
   9.11 Repair time
   9.12 Logistic delay
   9.13 Time to failure
   9.14 Time between failures
   9.15 Operating time between failures
   9.16 Wear-out failure period
   9.17 Constant failure rate period
   9.18 Life cycle
   9.19 External disabled time
10 Maintenance support and tools
   10.1 Maintenance support
   10.2 Line of maintenance
   10.3 Failure analysis
   10.4 Fault analysis
   10.5 Maintenance documentation
   10.6 Item register
   10.7 Maintenance record
   10.8 After sales service
11 Economical and technical indicators
   11.1 Life cycle cost
   11.2 Maintenance effectiveness
   11.3 Maintenance support efficiency
   11.4 Mean operating time between failures
   11.5 Mean time between failures
   11.6 Mean repair time
Annex A (informative) Maintenance - Survey
Annex B (informative) Example of various states of an item
Annex C (informative) Time to failure intervals
Annex D (informative) Alphabetical index
Bibliography

Specifies generic terms and definitions for the technical, administrative and managerial areas of maintenance. It is not intended to be applicable to terms which are used for the maintenance of software only.