Research by the Bureau of Mines (BOM) on the reasons why some mines are more productive than others has revealed the importance of good mine management practices.The Mine Management Support System is being developed, under the co-sponsorship of the BOM and the West Virginia Energy and Water Research Center, as a knowledge-based expert system for better management of underground coal mines. Concentrating on capturing the complex body of knowledge that is needed to enhance efficient management of a mine, it will encompass information and preferred rules on work scheduling, work practices, regulations impinging on the accomplishment of work, responses to operating problems, and the labor-management work agreement.Different components of the mine system, modeled using a n object-oriented layering technique will be displayed graphically to aid in coordinating work plans, and to present locations of equipment, supplies, and proposed subsystem components.