https://www.ibm.com/docs/en/ims/15.4.0?topic=procedures-prdr-through-qtu-procedure-parameters
IMS 15.4 - System definition - PRDR= through QTU= procedure parameters
The procedure parameters PRDR= through QTU=, which are described in the following list, can be specified in procedures in the IMS environment.
imssystemdefinitionqtuprocedure