Appeal No. 96-0023 Application 07/958,046 Upon our review of Hitchens and Thalimer, we fail to find that these references implicitly teach an historical data file in which stored historical data related to process attributes underlying each of the plurality of process elements for a plurality of points in time, a mask data file including information which relates the historical data to corresponding process elements in at least one graphical representation and a data processor to produce a combined display of at least one graphical representation with process attributes underlying at least one of the plurality of process components for a selected point of time. In particular, we fail to find that Thalimer implicitly teaches displaying data for selected data points for a selected point of time or that Hitchens implicitly teaches a mask data file that is a data structure that defines the structure records in the historical data file to allow the display of process attributes of a process component for a selected point in time. Hitchens teaches in column 1, lines 28-35, that the 7Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 3, 2007