Patent ID: 7233910

Claim:
A method for using computer-readable medium comprising a plurality of instructions for execution by at least one computer processor, the instructions for determining equivalency factors and first principle characteristics which are industrial facility's physical and operational attributes that are expected to determine a target variable that is a unique quantifiable attribute used to measure performance between facilities comprising the steps of: ascertaining a list of possible attributes that describe the technology, configuration, size and operational activity of the facilities; computing a percentage target variable variation influence from candidates of the first principle characteristics; ranking the percentage target variable variation influence for each of the first principle characteristics candidate from highest to lowest; grouping variations of the first principle characteristics candidate into categories; selecting the first principle characteristics candidates above a user-specified level of average variation; selecting the first principle characteristics candidates with less than a user-specified first principle characteristic inter-dependence; selecting the first principle characteristics candidates with less than a user-specified first principle characteristic co-variance; determining developed characteristics which are user-specified functions of the first principle characteristics that are comprised of ordinal or rank-based variables; determining the equivalency factors wherein the equivalency factors are computed from the plurality of selected first principle characteristics and the developed characteristics of the target variable using the equation {α j , j=1 to n} where n is the number of the selected first principle characteristics and the developed characteristics using a non-linear optimization procedure to minimize the total error, {ε i , i=1 to m},where m is the number of facilities, between actual and predicted target variable values as given by: T ⁢ ⁢ V i = ∑ j = 1 n ⁢ α j * C i ⁢ ⁢ j + ɛ i , i = 1 , m where C ij =the first principle or developed characteristic j of the i th facility n=number of selected first principle and developed characteristics m=number of facilities; and outputting the equivalency factors from the computer-readable medium for use in measuring the performance between the facilities.