AAOM Handbook

SC.08 Can Some Work Requiring Routine Operating Schedule Changes or Resources be Moved? Context The objectives of work scheduling are firstly to ensure that all Tasks are completed at the right time, and secondly to make the most efficient use of resources while doing this. Every work package has a distinct window that defines the right time for scheduling. This window is bounded by the earliest date that all requirements for completion of the work can be assembled (the Earliest Start Date), and by the latest date by which the work must be started (the Required Date less the work duration = Latest Start Date). The draft schedule must deliver the completion of every Task so that each Work Order is completed prior to its Required Date, regardless of any apparent constraint from workplace or resource availability. If the draft schedule indicates that either changes to the Routine Operating Schedule (ROS) or changes in the available resources are required in order to complete all Work Orders by their Required Date then one of two options exist;  the schedule has not been optimised and some Task(s) may be able to be moved to another Scheduled Date and time where it will not create the need for changes to the ROS or available resources but will still meet the work Order Required Date, or  the need for changes to the ROS or available resources is a critical issue for delivery of the schedule and must be escalated to the appropriate authority for a decision. Purpose To minimise changes to the ROS/resources, demanded by the draft schedule, without exceeding the Earliest Start Date or Latest Start Date for any Task. Quantity One decision whether some Tasks can be moved in the draft schedule to minimise changes required to either the ROS, or available resources. One list of Tasks to be rescheduled. One list of critical issues arising from the draft schedule. Quality In identifying Tasks that can be moved within a draft schedule the following criteria are to be considered;  all approved Work Orders/Tasks must be scheduled for completion before the Work Order Required Date,