# rotating machine
---Explanation KPIs---
Mean Time Between Failures: MTBF is a key indicator of asset reliability. It represents the average amount of time between two consecutive failures during normal operation. The higher the value, the better.
- Formula: MTBF = runtime / failures

Mean Time to Repair: MTTR focuses on the speed of failure recovery. It indicates how long it takes on average to repair a failure and restore the system to operational condition. The lower the value, the better.
- Formula: MTTR = downtime / failures

Asset Availability: Asset availability indicates how often machines are available for use. Higher availability means that the equipment experiences fewer breakdowns and remains operational for a greater amount of time.
- Formula: availability = MTBF / (MTBF + MTTR) * 100% 

Asset Health Index: A score ranging from 0 (optimal condition) to 5 (worst case) that reflects the overall health status of an asset.


---KPI message---
The message consists of the following components:
- asset tagnumber: 
- asset availability
- mean time between failures
- mean time to repair
- asset health index
- asset health color: Gives a color based on the asset health index (0 = Darkgreen, 1 = Green, 2 = Yellow, 3 = Orange, 4 = Red, 5 = Darkred.)
- total failures: the total number of failures that have occured for a particular asset