Scheduling Hierarchy within Advance

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The basic principle of underground mine scheduling is to allocate the limited amount of resource/equipment to across a wide range of tasks. The below is the list of hierarchy that Advance uses to determine which task/tasks can be worked on/ completed earlier or later.

1.    Dependency

1. Software honors the dependency links as the first priority
2. Links between tasks and cannot be broken (although Advance also provides the option of "ignore dependency" in certain circumstances if required)
3. Dependencies can significantly reduce the size of available task list

2.    Priority listed within Source Path

1. When no other priorities are entered in Software, Level structure set up in Data Table in Advance is then followed. (With Allow Advance: On *)

4. Constraint

1. Various options and rules that dictate if a task is available at a specified point in time
2. Tasks can have multiple constraints, and all constraint criteria must be satisfied for a task to be listed as available and an equipment to be assigned
3. Constraints also include scheduling constraints, such as equipment availability, calendars, non-work periods, number of equipment and so on
4. Capacity constraint: After a task has been sorted, priorities applied, and equipment and time constraint criteria satisfied the schedule engine can also allow for additional preference between tasks based on conditional objectives, e.g. Maintaining a set quality

Conclusions

1. Schedule engine scheduling- will first look at any dependency links that may stop a task from being allocated an equipment at a given point in time. A task will only be allocated an equipment if it meets all constraint criteria.

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