A computer-implemented method for enabling a user to search for and display information stored in a searchable database of product records, including providing a user interface to the database for enabling data contained in the database to be displayed on the user's computer and for enabling user input to be received, enabling a search of the database to be performed in response to user input, and providing results of the database search to the user, including enabling the user's computer to display a list of attribute values of a product record in the database, wherein the list of attribute values corresponds to a list of distinct attributes of a current product record contained in a selected set of product records, enabling the display next to an attribute value a set of selectable sub-elements, wherein each selectable sub-element corresponds to a predetermined rank and corresponds to a predetermined subset of possible attribute values for an attribute. The sub-element whose corresponding rank matches a corresponding rank of the attribute value is displayed as highlighted. The method further enables, when a sub-element is selected by a user, the current set of product records to be constrained to a subset of the current set of product records wherein each product record in the subset has an attribute value within the set of possible attribute values associated with the selected sub-element.