The VMetric® family of spare parts optimization models leads the world in capability and flexibility. The VMetric optimizing engine was developed by Dr. Craig Sherbrooke, creator of the VARIMETRIC system used by the US Air Force. The models are unique in their abilities to deal with the complex interactions of multiple systems deployed at multiple operating locations. Different numbers and types of systems can be operated at multiple locations, and there is no limit to the number of parts and indenture levels in a given system. Operational availability targets can be global, system-specific or location-specific. The model can also run to a budget, a desired fill rate, an on-time departure rate, a lost production target, an average delay time target, the slope of the availability versus cost curve, a shortage cost target, or some combination of these and other measures of effectiveness. For example, VMetric is configured to address the special needs of urban mass transit, runs to a user-specified probability that the time interval between trains or buses will not exceed some target value (e.g. 8 minutes in rush hour). Advanced options include powerful demand analysis routines and built-in simulation features to enable testing of stock solutions in realistic scenarios.
