In one embodiment of the disclosure, generally, a digitized form of the written procedure/instructions, instructional manual and/or fillable forms, in PDF with a rich content format or any other electronic format, referred to as the digitized document, is imported into an Interaction Authoring Tool (IAT) as illustrated at step 101 of FIG. 1 and displayed as illustrated at step 102.1 in the background using a scrolled graphical user interface window on a display of a computing device. The IAT 402 also displays, in a separate window, a rich palette of configurable interaction widgets as illustrated at step 102.2 where each widget in the palette, generally or specifically, corresponds to a different content type within a typical digitized document. FIG. 1 shows a flowchart that depicts the simplified steps, in one embodiment of this disclosure, used to define user-computer interaction and computer-aided navigation through superimpose/overlay of interaction widgets over the content blocks of the digitized document. In FIG. 1, steps 104 and 105, the person defining the interactions (the interaction designer) superimposes (to show the content underneath) or overlays (to block the content underneath or portions thereof) a selected widget, from said palette, over (or on top of) a corresponding content block and resizes the widget to contain and snag the desired content block (depicted in FIG. 1, step 106).