Most facilities have a planning and scheduling process for maintenance work activities. The goal of the planning process should be to determine and prepare the parts,  tools, permits, steps, etc. that are required to perform the maintenance activities at the scheduled times. The planning process could fail if the total number of equipment issues overwhelms the planning system. The planning process should include proactive activities to identify failure conditions on equipment. Tasks such as Condition Monitoring activities should be one of the driving influences for planning and scheduling activities. A substantial focus should be given to activities that prevent or identify equipment defects.