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	Simulation Results Explorer

System Overview

The System Overview worksheet in the Simulation Results Explorer presents an overview of the calculations performed for the entire system. The values shown are averages of the results of all of the simulations.

General
- Mean Availability (All Events): Includes all system downing events during the time of the simulation. The standard deviation of this value is provided in the Std Deviation (Mean Availability) field.
- Mean Availability (w/o PM, OC & Inspection): Includes all downing events, but not preventive, on condition or inspection tasks, during the time of the simulation.
- Point Availability (All Events) at [Time]: The point availability of the system, including all downing events, at the simulation end time.
- Reliability ([Time]): The reliability of the system at the simulation end time.
- Expected Number of Failures: The total number of failures expected to occur during the simulation for the system. The standard deviation of this value is provided in the Std Deviation (Number of Failures) field.
- MTTFF: The mean time to first failure for the system at the 50% confidence level.
System Uptime/Downtime
- Uptime: The total amount of time that the system was up (i.e., operational) during the simulation.
- CM Downtime: The amount of time that the system was down (i.e., not operational) due to corrective tasks during the simulation.
- Inspection Downtime: The amount of time that the system was down (i.e., not operational) due to an inspection during the simulation.
- PM Downtime: The amount of time the system was down (i.e., not operational) due to preventive tasks during the simulation.
- OC Downtime: The amount of time the system was down (i.e., not operational) due to on condition tasks during the simulation.
- Total Downtime: The total amount of time that the system was down (i.e., not operational) during the simulation.
- Critical Downtime: The total amount of time that the system was down where the length of the downtime met or exceeded the system downtime threshold, as specified on the Analysis Settings page of the diagram's control panel.
System Downing Events displays information for all events associated with system downtime that occurred during the simulation. Note that events with zero duration will appear in this section only if the task properties specify that the task brings the system down or if the task properties specify that the task brings the item down and the item’s failure brings the system down.
- Number of Failures: The total number of failures that occurred for the system during the simulation time.
- Number of CMs: The total number of corrective tasks performed on the system during the simulation time.
- Number of Inspections: The total number of inspection tasks performed on the system during the simulation time.
- Number of PMs: The total number of preventive tasks performed on the system during the simulation time.
- Number of OCs: The total number of on condition tasks performed on the system during the simulation time.
- Number of OFF Events by Trigger: The total number of events where the system is turned off by state change triggers. An OFF event is not a system failure but it may be included in system reliability calculations.
- Total Events: The total number of system downing events that occurred during the simulation time.
Costs
- Total Costs: The total costs that accrued for the system during the simulation time, which is based on the costs for tasks, crews and spare part pools.
Throughput
- Total Throughput: The total number of units that were processed/produced by the system during the simulation time. The total throughput will be calculated only if you selected to run a throughput simulation on the Analysis Settings page of the diagram control panel.