This report presents the results of an investigatin into the development of a management information system (mis) for underground coal mines. The intent of the project was to examine the information issues, various design aspects, and associated application concerns of an integrated monitoring mis, such as the impact of this technology on safety. The work performed on this contract used mine ventilation as a prototypical example and concludes that a kbes formulation of an integrated monitoring mis for coal mine management is feasible and desirable. The report is presented in five chapters and six appendices and describes ventilation mis system requirements, the formulation of a knowledge- based expert system (kbes) structure to implement the integrated ventilation monitoring mis system, and the health and safety implications of the system. The appendices present details of the kbes system application with an example using a ventilation simulator (psu-mvs).