AAOM Handbook

For a ROS that represents the number of available units for a group or fleet of units, the;  the number of units,  start time, and  duration of each time period where a different number of units are available for the assignment in the schedule. For a ROS that represents the critical path Gantt chart for an area, the;  start time,  duration, and  dependencies of critical path tasks that will be available for assignment in the schedule. Quality When contemplating changes from the approved ROS consider the following:  Only necessary, appropriate and funded Service Work will be approved in the Operating Model.  Service Work is necessary for future production – if it is not completed, on time, short term production goals may be met but longer term ones will not be.  The potential sustainability (ie dealing responsibly with safety, the environment, employees, communities, governments and asset life), and cost consequences if work is not completed on time.  potential hazards and risks associated with the work and suggested changes,  Keep changes from the approved ROS as limited and as short in duration as possible.  Change the timing (pattern) of Production and Service work in the ROS in preference to changing the balance of Production and Service work.  The potential to use proposed changes in the ROS for other necessary activities, hence reducing their potential impact elsewhere in the ROS.  Alternate operating strategies that may provide the potential to recover Production Work displaced by Service Work.  The impact on output targets if the changes are approved. These may be timing changes only, or they may be permanent volume changes. Once a decision on changes to the ROS has been made the potential critical issues associated with that decision must be specified. This shall include;  what each critical issue is,  the control actions (quantity and quality) that will be put in place,  when the control action will be taken,  who is accountable for the control action implementation,  the resources available to implement the control action. These shall be documented before the completion of the review.

© McAlear Management Consultants 2004

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