A graphical navigation user interface for enabling user control of a computer system may incorporate navigation levels. Each navigation level is based on a physical real-word metaphor. The navigation system includes a three four levels: a individual object level, a room level, a building level, a town level. An individual object level is the lowest navigation level and corresponds to specific function. The room level provides a user with options of specific functions. The building level includes a hallway metaphor where the user has options of choosing room objects through a doorway. The town level provides the user with options of choosing various building objects connect by a street metaphor.
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