Phases of the IVP process

The IVP process consists of four phases: initialization, variable-gathering, file-tailoring, and execution.

To verify that the new functions and features of IMS are working properly, you must complete all four of these phases. Initially, you must proceed through the phases sequentially. After you complete the variable-gathering and file-tailoring phases, however, you can move back and forth between these two phases out of sequence.