A condition assessment system for use in monitoring the operation of at least one of a plurality of units included within a fleet of substantially similar units is described. The system includes an input device configured to receive a selection of at least one source of data related to the operation of at least one of the plurality of units. The system also includes at least one sensor associated with the at least one source of data and configured to sense data related to the operation of at least one of the plurality of units. The system also includes a condition assessment device configured to receive data from the at least one sensor, sample data associated with at least one data parameter from the received data, and generate a baseline parametric curve from the data associated with the at least one sampled data parameter.