Influence on resource allocation

The Planner’s ability to reallocate resources is closely tied to the way it chooses a resource combination to plan an operation. An operation may specify several resource groups that are required to perform the operation. Each resource group may contain multiple member resources. One or more resources may be required from each resource group that is assigned to the operation. When planning the operation, the Planner evaluates every combination (provided the ALTPLAN.PULLITERS parameter is set to 0, as recommended) of those potential resources and chooses the combination that can plan the operation the fastest. Evaluation criteria include a resource's on-shift time and current allocation to other jobs.

The reallocation feature influences the Planner’s criteria of evaluating these resource combinations. If the resource group's Reallocate field is selected, the Planner considers the added availability of all the other candidate resources of that group.