Register user-defined dimensions and measures at a particular process type or process type group so that these dimensions and measures will be calculated for process instances of this process type/process type group only.
Warning
The standard measures (number of processes and number of functions, time, function) and all data access dimensions must be registered at the process tree root because they are required for internal calculations.
If possible, use process measures and process dimensions. Function measure queries and function dimension queries require more calculation capacity due to the significantly larger data volume. Normally, function measures are required only if a function exists multiple times in a process instance and if you want to analyze the functions individually.