MIG Program: Prioritization of maintenance work requests.

摘要

The Maintenance Importance Generator (MIG) program has been written to automatically prioritize all pending Oak Ridge Y-12 Plant maintenance jobs in conformity with DOE policy and regulatory requirements. The program captures and applies the knowledge and best practices of many experienced maintenance workers. Up to 40,000 work requests are prioritized or updated each week; maintenance foremen receive prioritized work-pending lists. MIG program results were uniformly good; it was implemented in the Metal Prep Division in August 1989 and has been in use for several months in other major production divisions. The program satisfied an Admiral Watkins' Tiger Team Top-10 Problem for Y-12 in 1990: ''How to systematically prioritize work.'' The MIG program uses a weighted-factors method similar to that utilized by commercial, licensed methodologies for decision making. Each box on a Maintenance Work Request (MWR) form represents an importance factor. These factors were ranked relative to each other and were given appropriate weight increments by a consensus of maintenance and customer organization experts. Coordination was by the MIG program developers and included input from DOE and plant policy. The specific entry made by a customer in an MWR form box is read to determine the fraction of the box weight that will be applied to an accumulating priority number. Captured knowledge is used in this step. The straight sum of the weight increments of the individual factors is the final priority number. The weight increments and the captured knowledge represent the judgement of a decision committee that can be reused in a fully automatic process.