Abstract: A user can navigate through a graphical user interface (GUI) displayed on a display of a computing device using a fingertip or other feature of a hand not holding the device. The interface can be scrolled, zoomed, or otherwise manipulated corresponding to the movement of the fingertip. The user can select a graphical object of the GUI using a thumb or other feature of the hand holding the device, enabling a precise navigation and selection process. Different detection techniques can be used, such as to capture and analyze images to determine the location of the navigation feature and to use capacitive touch sensing elements to detect the selection actions. In some embodiments, a user can perform an attachment action to cause a three-dimensional rendering of an element of the GUI to be adjusted based at least in part upon the position of a fingertip or other feature of the user.

Abstract: A method and apparatus is disclosed herein for diagnosing configuration faults. In one embodiment, the method comprises: detecting a violation to one or more dynamically constructed invariants for configuration; and diagnosing a misconfiguration based on use of a task-based ranking of misconfiguration suspect causes in which suspect causes of the misconfiguration are ranked based on information indicative of which entity made a change related to the one or more invariants for which a violation was detected.