start-phase Specify the phase where AUTOGEN is to begin executing. The phase specified for start-phase must either precede or be identical to the phase specified for end-phase. If you do not supply an option for the start-phase parameter, enter a null argument (that is, "" ). If you do not specify a start phase, GENPARAMS is the default. end-phase Specify the phase where AUTOGEN is to complete executing. If you do not specify an end phase, the end phase has the same value as the start phase by default. execution-mode Specify one of the following execution-mode options to control how AUTOGEN uses feedback: o FEEDBACK o NOFEEDBACK o CHECK_FEEDBACK o Blank See the separate help topic "Execution_Modes" for a description of each option listed here.