The mediation system is at the center of the integration process between the devices and the information system. It is the software system that enables using those data within the enterprise business applications.
... the Integration Infrastructure.
The mediation system is the integration infrastructure that handles all technical issues related to the diversity of devices, gateways, communication medium, communication protocols, security infrastructures.
... the Device Data Broker.
The mediation system is the distributed broker that delivers the precise data expected by business applications, processing wherever possible the raw data flooding from the devices into the custom business indicators. The mediation infrastructure might perform very simple operation, from filtering or counting occurences to more complex processing such as correlation between different sources or other statistical analysis.
Examples of Applications with intensive demand of usage data
Remote Management, Monitoring, Fault Detection and Alarm Reporting