It uses the basic functionality of SIMATIC IT Plant Performance Analyzer (PPA, for more information refer to the description), leveraging the calculation capacity of this component and then provides dedicated configuration for the Downtime Management and for Overall Equipment Efficiency. It can be therefore associated to PPA or to Historian. It provides dedicated functions for efficiency analysis. Data acquisition and aggregation in OEE KPIs (availability, performance, quality, OEE and many others, including custom KPIs) is the major function. To properly achieve the availability KPI a full downtime management is provided with time model definition in a hierarchical way, enabling distribution and root-cause analyses. GUI tools for OEE and Downtime analysis are also provided.