After merging the imported process fragments into process instances, the process instances need to be classified to enable meaningful measure analyses. To do this, they are arranged in a freely definable two-level hierarchy: Process instances are assigned to process types, which are in turn summarized into process type groups. A process type group can therefore contain several process types, which in turn can contain several process instances. However, a process instance can only be assigned to a single process type and thus also to only one process type group.
The rules for identification are freely definable for each specific source system. The typification information is saved in process instance attributes.
The assignment of process types and process type group is represented in the process tree in PPM. The configuration of the process tree also specifies which measures and dimensions are available for the individual process types.
Process instances are actual business events that have occurred and are made up of imported process instance fragments. Similar process instances are summarized in process types, which in turn are assigned to a process type group. The term "process" as known from ARIS modeling is not specified as part of PPM and should therefore not be used.