Calculation dynamic key figures |
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In this chapter all formulas used in the application for dynamic key figures are listed and described
Contents
3. Dynamic flow grade (for specific measurement section)
4. OEE (operating time, process)
5. OEE (simulation time, process)
6. OEE (simulation time, system)
8. Theoretical number of workers
Formular |
Description |
\[ ActiveTime = Working+Setup+Failed+Reworking \] |
times corresponding to process status portions |
Formular |
Description |
\[ BottleneckKPI_{Process}= \frac{ActiveTime_{Process}}{OT_{Process}} \] |
ActiveTimeProcess: (see above) OTProcess: Operating time process (see below) |
3. Dynamic flow grade (for specific measurement section)
Formular |
Description |
\[ FG_{dynamic, section}=\frac{avg, simulated\:TGT_{Parts}}{\sum staticProcessTimesInSection} \] |
TGTParts: average of simulated throughout times for parts within measurement section (from start to finish object) ProcessTimes: static calculated throughput times for value-adding processes within measurement section (Calculation corresponding to static object KPIs) |
4. OEE (operating time, process)
Formular |
Description |
\[ OEE_{OT, Process}=\frac{\#IO\times CT_{Plan}}{OT}\times 100\% \] |
#IO: Number of simulated IO parts as throughput of process CTPlan: planned cycle time per process object (average if more than one product defined) OT: Operating time process object (see below) |
5. OEE (simulation time, process)
Formular |
Description |
\[ OEE_{SimTime, Process}=\frac{\#IO\times CT_{Plan}}{T_{Total}}\times 100\% \] |
#IO: Number of simulated IO parts as throughput of process CTPlan: planned cycle time per process (average if more than 1 product defined) TTotal: Total simulation time |
6. OEE (simulation time, system)
Formular |
Description |
\[ OEE_{SimTime, System}=\frac{\#IO\times TT_{avg}}{T_{Total}}\times 100\% \] |
#IO: Number of simulated IO parts as throughput of system (added overall customer objects) TTavg: average customer cycle time overall customer objects TTotal: Whole simulation time |
Formular |
Description |
\[ OT=Working+Setup+Failed+Reworking+Waiting+Blocked \] |
times corresponding to process status portions |
8. Theoretical number of workers
Formular |
Description |
\[ \#W_{theo}= \#W\times \frac{ProcessUtilization}{100\%} \] |
#W: number of workers per process object ProcessUtilization, as: \( ProcessUtilization=\frac{(Working+Setup+Failed)}{OT}\times 100\% \) |
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