As a program manager, you decided to overlap two phases of your program. Which of the following terms best describe your act?

Lead time describes the scheduling relationship where a successor activity can start before its predecessor finishes by a specified amount, which is a dependency attribute rather than a phase-overlap technique.

Rolling wave planning is a progressive elaboration technique for incrementally planning work as more detail becomes available, not a method for overlapping or compressing phases.

Fast tracking is a schedule compression technique in which phases or activities that would normally be performed sequentially are deliberately overlapped or run in parallel to shorten the project schedule. The program manager accepts increased risk of rework in exchange for a reduced timeline by starting a later phase before the preceding one is fully complete. This directly matches the described action of overlapping two program phases.

Crashing is a schedule compression technique that adds resources to critical path activities to shorten their duration, not a technique of overlapping or parallelizing phases.