MTTx Terminology

When it comes to asset reliability measurement all the different MTTx acronyms start to appear but sometimes is not clear to everybody the exact meanings of these terms.
In this post I want to give a very simple explanation of these reliability KPIs.




MTBF is the sum of MTTF and MTTR, the total time required for a device to fail and that failure to be repaired.
MTBF = MTTR + MTTF

Here is a nice representation for these KPIs.




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