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In a graphical user interface (GUI), interaction is based upon selection and action at positions in the graphical display, guided by graphical content and the user's intent. Printed embedded data GUIs (PEDGUIs) generalize the interaction domain to images and objects in order to enable interaction with passive objects and active displays throughout the user environment. The interface can be almost any object. The selection and control tool is an image capture device. The embedded data helps to establish the selection location and gesture, as well as the identity or context of the chosen substrate and links to other resources. Even in the case of multiple active and passive display substrates, the GUI system captures and interprets user interactions throughout the workspace. DataGlyph technology, based on self-clocking glyph code, is a particularly efiective and flexible encoding technology for embedded data GUIs.
D.L. Hecht (Thu,) studied this question.