Post on 04-Mar-2016
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1. Cost of managing processes
Periodic costs of managing processes,
usually based on the number of Full Time Equivalents (FTEs involved inmanagement functions for processes
Formula: (Total cost for managingprocesses divided by (period
Unit type: !oney
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". !ean Time to #epair (!TT#
$verage time (e.g. in hours bet%een theoccurrence of an incident and its
resolution. Formula: $verage of time bet%een
resolution of incident and start of incident
Unit type: TimeDirection: !inimi&eUnit: 'ours
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. ) of service requests resolved %ithin anagreed*upon period of time
Percentage of service requests resolved
%ithin an agreed*upon+acceptable period oftime.
Formula: -ervice request resolved %ithinthe agreed time percentage of Total service
request Unit type: Percentage
Direction: !a/imi&e
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0. !ean*time bet%een failure (!TF The average time bet%een equipment failures
over a given period i.e. the average time adevice %ill function before failing. 2t is the
reliability rating indicating the e/pected failurerate of equipment.
Interpretation: 2t is the reliability ratingindicating the e/pected failure rate of equipment.
Unit type: TimeDirection: !a/imi&eUnit: 3ays
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4.) of outage due to incidents(unplanned unavailability
Percentage of outage (unavailability
due to incidents in the 2T environment,relative to the service hours.
Unit type: Percentage
Direction: !inimi&e
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5. $vailability (e/cluding planned do%ntime Percentage of actual uptime (in hours of equipment relative
to the total numbers of planned uptime (in hours.
Planned uptime 6 service hours 7 planned do%ntime
Planned do%ntime is do%ntime as scheduled formaintenance.
$lso 8no%n as9 -ervice :utage 3uration
Formula: $ctual uptime percentage of
Planned uptime Unit type: Percentage
Direction: !a/imi&e
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;.) of outage due to changes (plannedunavailability
Percentage of outage (unavailability
due to implementation of plannedchanges, relative to the service hours.
Formula: :utage due to planned
changes percentage of total :utage Unit type: Percentage
Direction: !inimi&e
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<.:verall Equipment E=ectiveness (:EE :verall Equipment E=ectiveness (:EE 6
$vailability / Performance / >uality $vailability 6 :perating Time + Planned
Production Time Performance 6 2deal Cycle Time + (:perating
Time + Total Pieces or
Performance 6 (Total Pieces + :perating Time + 2deal #un #ate >uality 6 ?ood Pieces + Total Pieces