Using TSS REPLACE

Another way to add a new resource to the RDT is to modify one of the existing resource classes.

The following shows you how to use the TSS REPLACE command to modify an existing resource class in the RDT:

TSS REP(RDT) RESCLASS(ABSTRACT) ATTR(DEFPROT) ACC(READ)

The following resource classes have been reserved for any new resource:

ABSTRACT: Which, with additional site-written code, is used to extend security to other system type resources, such as job execution classes.
FIELD: Which is used to define database fields and to validate access to these fields by user program or transactions.
UR1, UR2: Which are used to designate owned, non-system, site-defined resources, such as particular account codes. They are implemented and function in the same manner as ABSTRACT and FIELD.
USERx: Which is used to designate unowned types of resources.

Any installation-defined resource class can be implemented as ownable or unownable. Your choice depends on how security is administered at your site.