The Synthetic Rate of Return (TRS) or Overall Equipment Effectiveness (OEE) is a performance indicator developed by Seiichi Nakajima in the 1960s to measure the rate of use of an industrial facility. The OEE is the most frequently used indicator today to measure equipment performance, although there is currently no international consensus on this indicator. While OEE measures effectiveness against scheduled hours, TEEP measures effectiveness against calendar hours (24/7/365 days per year).

Nevertheless, the measure taken by such an indicator is quite relative and is, in practice, rather used to identify areas for improvement. The improvement of the OEE is measured against a reference for a given equipment; the value of this indicator is therefore specific to this equipment and is not comparable with equipment of other kinds in other departments or factories. Thus, maximizing OEE or TEEP does not necessarily mean achieving the overall optimum for the production entity.

TEEPTRAK allows you to assign a set of fully configurable categories of causes of performance loss to each piece of equipment or area monitored. With the PerfTrak, QualTrak and PaceTrak solutions, these causes can be entered by the operator on their tablet when a production gap (machine shutdown, underperformance, etc) is reported to them by the TEEPTRAK module.

These causes of losses will be linked to groups of causes that will make up the performance indicators. When constructing an indicator, certain groups of causes may be included or excluded from the calculation of the indicator.

Below is an example of a classification of performance losses for each typical category of the calculation of OEE/TEEP indicators. To track an OEE (TRS), the “Production Site Shutdown” and “Planned Shutdown Time” categories will not be considered its calculation.