Because attributes of an event log may have a specific meaning, Interactive PMCube Explorer provides a framework to annotate the attributes of the data cube (dimensions as well as simple attributes) with semantics. For example, it is possible to mark an attribute as the start time-stamp of an event. These semantic annotations are used by Interactive PMCube Explorer to process the data, e.g. the event start time-stamp can be used to order the events in a trace. The following table gives on overview of all semantic annotations that are defined by default. However, it is possible to extend the semantics framework by providing further annotations integrated as plug-ins (see the plug-in page for a list of provided plug-ins).