| 摘要 |
<p>A process for accessing a large number of data elements, such as pointers to sources of information which may be URLs in a computer network or information data files. The process comprises accessing a data file storing which represents a group of nodes arranged in a tree structure with successive levels each consisting of sets of child nodes linked to a common node in the preceding level and has data elements at respective nodes. Inputs by a user from an input device successively selecting a chain of linked nodes in successive levels are received. In response thereto the successive nodes of the chain are accessed preferably recursively to provide access to the data elements. A plurality of data files may be accessed dynamically. The selected nodes may be accessed by successively displaying the labels for the set of nodes linked to the selected node in respective fields of a predetermined two dimensional, three-by-three array of display fields on the display device.</p> |
