Abstract: Method and computer system for evaluating the complexity a user interface are provided. A complexity indicator receives device class specific representations of the user interface. Each device class specific representation refers to a respective device class. The complexity indicator determines complexity values of layout components of the device class specific representations by using complexity evaluation functions associated with the layout components and aggregates the complexity values by device class according to a corresponding layout component hierarchy of the respective device class specific representation.

Abstract: Systems and techniques for navigating an organization of information may be used for navigating program functions, file directories, Web-sites, or any other appropriate organization of information. In one implementation, a navigation technique includes generating a one-dimensional navigation structure for an organization of information, the navigation structure comprising a plurality of elements, each element representing a portion of information, and detecting a command indicating selection of one of the elements in the navigation structure. The technique also includes determining whether the selected element has at least one associated element and, if the selected element has at least one associated element, modifying the navigation structure by deleting the non-selected elements from the navigation structure and adding the elements associated with the selected element to the navigation structure.

Abstract: Method and computer system for evaluating the complexity a user interface. A complexity indicator (121) receives (430) device class specific representations (301, 302) of the user interface. Each device class specific representation (301, 302) refers to a respective device class (DC1, DC2). The complexity indicator (121) determines complexity values of layout components (1 to 9) of the device class specific representations (301, 302) by using complexity evaluation functions (EF5-DC1, EF5-DC2, EF6-DC1, EF6-DC2), associated with the layout components (5, 6) and aggregates the complexity values by device class according to a corresponding layout component hierarchy (321, 322) of the respective device class specific representation (301, 302).

Abstract: Systems and techniques for navigating an organization of information may be used for navigating program functions, file directories, Web-sites, or any other appropriate organization of information. In one implementation, a navigation technique includes generating a one-dimensional navigation structure for an organization of information, the navigation structure comprising a plurality of elements, each element representing a portion of information, and detecting a command indicating selection of one of the elements in the navigation structure. The technique also includes determining whether the selected element has at least one associated element and, if the selected element has at least one associated element, modifying the navigation structure by deleting the non-selected elements from the navigation structure and adding the elements associated with the selected element to the navigation structure.