| 摘要 |
A method, system and controller is provided for searching a database containing data items with a user via a user interface, the method comprising the steps of specifying an initial search subset of some or all of the data items in the database (1201); identifying representatives of each of a number of data categories in the search subset (1203); displaying the representatives on the user interface (1204); selecting one or more of the representatives (1205); specifying a refined search subset of data items in the search subset within the data categories corresponding to the selected representatives (1207); and repeating the steps of identifying and displaying representatives for the refined search subset. |
