1. A method for operating a facility having a plurality of equipment combinations, each equipment combination is operable interactively with at least one other equipment combination, said method comprising: receiving a plurality of measured process parameters, in real-time, for each of the plurality of equipment combinations, wherein the equipment combinations include at least a driver machine and a driven machine; determining, using a computer, at least one derived quantity from at least one measured process parameter associated with at least a first of the equipment combinations and from at least one measured process parameter associated with at least a second of the equipment combinations, wherein the at least one derived quantity is associated with at least one of the plurality of equipment combinations and is compared to a measured process parameter to verify an operability of at least one sensor; and recommending a change to an equipment operation based on the measured process parameters and the at least one derived quantity.