+1 coinfor reading to the end
+1
Home / Glossary / MTTF
Glossary · Management

MTTF

Mean Time to Failure

In plain language

The average time a part runs before it fails and has to be replaced.

The metaphor

Like the expected burn time printed on a light bulb.

Going deeper

How it works

  • It is used for parts that get replaced when they fail.
  • It is an average, so some fail early and some last longer.
  • Makers measure it with testing and calculations.
  • It helps plan when to replace gear.
In practice
  • A spec sheet lists it for a hard drive.
  • A planner replaces batteries on a schedule.
  • A vendor quotes it for an LED display.

A question owners ask

Is it a warranty?

No. It is an estimate for planning. Warranties and backups are what protect you.

Related terms
ALEAnnualized Loss ExpectancyAROAnnualized Rate of OccurrenceAUPAcceptable Use PolicyBackupBCPBusiness Continuity PlanningBIABusiness Impact AnalysisBPABusiness Partners AgreementBYODBring Your Own Device

Something here sounds like your problem?

Every WILDCARD card exists to solve one named problem. Find yours.

Pick your problem →