Difference between revisions of "Mean time between failures"

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[[Mean time between failures]] (MTBF) is the overall average time between product breakdowns. Usually expressed in terms of operating hours.
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[[Mean time between failures]] (also known by its acronym, [[MTBF]]) is the overall average time between product breakdowns. Usually expressed in terms of operating hours.
  
 
==Definitions==
 
==Definitions==
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According to the [[ITIL Foundation 4e by Axelos]],
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Mean time between failures]] ([[MTBF]]). A metric of how frequently a service or other configuration item fails.
 
:[[Mean time between failures]] ([[MTBF]]). A metric of how frequently a service or other configuration item fails.
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Metric]]. A measurement or calculation that is monitored or reported for management and improvement.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Minimum viable product]] ([[MVP]]). A product with just enough features to satisfy early customers, and to provide feedback for future product development.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Mission statement]]. A short but complete description of the overall purpose and intentions of an organization. It states what is to be achieved, but not how this should be done.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Model]]. A representation of a system, practice, process, service, or other entity that is used to understand and predict its behaviour and relationships.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Modelling]]. The activity of creating, maintaining, and utilizing models.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Monitoring]]. Repeated observation of a system, practice, process, service, or other entity to detect events and to ensure that the current status is known.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Operation]]. The routine running and management of an activity, product, service, or other configuration item.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Organization]]. A person or a group of people that has its own functions with responsibilities, authorities, and relationships to achieve its objectives.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Outcome]]. A result for a stakeholder enabled by one or more outputs.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Outsourcing]]. The process of having external suppliers provide products and services that were previously provided internally.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Partnership]]. A relationship between two organizations that involves working closely together to achieve common goals and objectives.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Performance]]. A measure of what is achieved or delivered by a system, person, team, practice, or service.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Plan]]. The value chain activity that ensures a shared understanding of the vision, current status, and improvement direction for all four dimensions and all products and services across an organization.
 
According to the [[ITIL Foundation 4e by Axelos]],
 
:[[Policy]]. Formally documented management expectations and intentions, used to direct decisions and activities.
 
  
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Latest revision as of 14:29, 13 December 2020

Mean time between failures (also known by its acronym, MTBF) is the overall average time between product breakdowns. Usually expressed in terms of operating hours.

Definitions

According to Managing Quality by Foster (6th edition),

Mean time between failures (MTBF). The overall average time between product breakdowns. Usually expressed in terms of operating hours.

According to Juran's Quality Handbook by Defeo (7th edition),

Mean time between failures (MTBF). The mean (or average) time between successive failures of a product.

According to the ITIL Foundation 4e by Axelos,

Mean time between failures (MTBF). A metric of how frequently a service or other configuration item fails.