We have developed methods for repairing plans to account for execution failures and changes in the execution situation. This system was itself based on our Nonlin and O-Plan planning algorithms and plan representation. We subsequently refined the methods for the O-Plan planner and incorporated plan repair methods into the system. This paper describes the algorithms used for plan repair in O-Plan and gives an example of their use. Abstract Expert Provisioner is a knowledge-based provisioning system prototyped for use by the RAF Logistics Command to support their Range Managers in the procurement of consumable parts.
Spares provisioning is one of the most fundamental and difficult logistics processes.
Any item of equipment will need to have some of its component parts replaced at some time during its operational life. Re-provisioning is the art of ensuring that spare parts are available when required without tying up much needed capital in excessive inventory holdings. The starting point for Expert Provisioner is an electronic purchase order form and its end point is a recommendation of whether to buy the item or not, its cost and due delivery date. Purchase recommendations are made based on many factors including forecast demand, unit costs, shelf life and existing stock levels. The system removes much of the mundane work in order processing as well as potential for misinterpretation of information.