ing commercial and institutional facilities operating both efficiently and cost-effectively. Decisions support system data that is collected by the CMMS, including; hours worked, failure codes, equipment and system downtime, repair costs, and repair time are being used to support operational decisions, such as reliability analysis to compare manufactures, maintenance effectiveness, and justification of outsourcing specific maintenance functions. TOMORROW'S CMMS: The latest crop of computerized maintenance management systems (CMMS) tend to reflect the general advances in software that have been occurring at an exponential rate. Ten years ago, Windows-based programs were the exception rather than the rule. Larger multi-user systems were at best served by mainframe or mini-systems. Handheld data collection units and pen-based computer transferring data to and from a central database via the Internet are readily available, and historical data is analyzed for maintenance reliability information, and for management and budgetary support. ...