Patent ID: 8924877

Claim:
A method comprising: identifying at least one statistical output associated with a process model; generating a first graphical display comprising a plot line having a plurality of first points, each first point based on the at least one statistical output; generating a second graphical display comprising a plot having one or more second points, the plot having a first axis associated with values of the first points and a second axis associated with a rate of change between two or more of the first points, wherein the second graphical display comprises multiple portions; presenting the first and second graphical displays concurrently to a user; detecting a change in a position of a cursor on the plot line of the first graphical display; updating the second graphical display based on the position of the cursor; and selecting one of the portions of the second graphical display based on at least one of the one or more second points; wherein the different portions of the second graphical display are associated with both (i) a fit of the process model to current process conditions and (ii) a change in the model fit as a function of time; and wherein the different portions of the second graphical display comprise four quadrants of the plot of the second graphical display, each quadrant representing one of four states of the process model, the four states comprising: (i) a poor fit to current conditions and approaching a better fit; (ii) a poor fit to current conditions and approaching a poorer fit; (iii) a good fit to current conditions and approaching a poorer fit; and (iv) a good fit to current conditions and approaching a better fit.