Abstract: There is provided a computer controlled display interface permitting simplified tracking of access time periods to secured data in a user interactive display system with a multitude of displayed windows comprising secured data. A process is provided for tracking for each of said plurality of windows a variable parameter relative to the window, in combination with a process for displaying along at least a portion of the borders of each of said windows a color varying with said variable parameter being tracked for said window. In secured access systems, the parameter being tracked is the period of access time.