Navy OCS Division Officer (DIVO) Practice Test

Preventive maintenance is planned maintenance, so the subsystem that handles the planning, scheduling, and recording of those tasks is the Planned Maintenance System. This system contains the maintenance requirements and PM schedules, tracks due dates, and records when PM tasks are completed. It provides the central place to see what preventive work is due, what has been done, and what remains outstanding, keeping equipment readiness on track. Scheduling is the function that determines when tasks should run, but the actual tracking of the preventive maintenance itself—what needs to be done and when—lives in the Planned Maintenance System. The other subsystems support different aspects: the Maintenance Data System stores maintenance data, and Configuration Status Accounting tracks the equipment’s status and configuration, while Scheduling handles timing and sequencing.