(1) Facility of IMS Version 2.2 (or later) and of CICS Transaction Server, for allocating DL/I databases and CICS file control data sets, respectively. If no DD statement is provided for the database data sets contained in the database, allocation happens automatically when the database is scheduled.
(2) Assignment of system resources to a program when the program is executed rather than when it is loaded into main storage. See also step allocation.