AAOM Handbook

The occurrence of the precedent event for these actions will be set up as a trigger in the Work Scheduling System (WSS). • the passing of a specified calendar time period - In underground mining a hoist or shaft inspection will typically be required at specified calendar intervals. In a mineral processing plant, switchboard servicing will typically be required at specified calendar intervals. In a supply environment stock counts and contract compliance audits will typically be scheduled at defined calendar intervals. The values for these calendar intervals will be set up as triggers in the WSS. • the accumulation of a specified value for a counted parameter, which could be; operating hours, tonnes, litres, cycles etc. In mining the servicing of mobile equipment is usually triggered by a counter of operating hours. In a mineral processing plant inspection or replacement of wear items is usually triggered by a counter of material throughput. • the achievement of a specified condition, which could be thickness, flow reduction, pressure drop or increase etc. In mining brake linings/pads are typically replaced on reaching a minimum thickness. In mineral processing a pump may be scheduled for repair or replacement based on performance deteriorating to a set of lower specification limits for flow and pressure. The values for these measurement points will be set up as triggers in the WSS. These trigger events are used in both the production of an Operating Master Schedule (via the OMS software), and in driving the routine generation of Work Packages into the Work Management process (via the Work Scheduling System - a system that provides automatic triggering of work packages based on specified trigger parameters). Right Way Each Service action will include a scope of work and specification. These may include the outcomes, specifications/tolerances, method of execution, conditions and constraints and resource requirements. In most operating processes there will be a large number of Service actions, hence, for efficiency of management we will often wish to group service actions with synergies into a smaller number of Work Packages that are more efficient to schedule, resource and execute. The workplace, conditions and constraints, resource requirements and trigger characteristics for service actions are used to identify the synergies for creating Service Work Packages. Forecasts for the expected quantities, frequencies and demand lead times for the resources (labour, materials and equipment) necessary for the execution of the Service Work Packages can be derived from the detailed specifications of the Work Packages, in combination with the process operating forecasts and the triggers for the Work Packages. This data can be used to define the service levels and supply/logistics strategies for the resources required to implement the Service strategy.

Purpose

To specify the most cost effective way to manage threats related to the process.