1. An object access system comprising: an input component; and a processor coupled to said input component and configured to construct an extraction tree based upon an ordered list of a plurality of objects, each object having an object description and associated weighted value, the extraction tree comprising a plurality of nodes, each node having a node range for representing a group of objects based upon the respective object descriptions, the plurality of nodes comprising at least one parent node, and a plurality of ordered child nodes associated therewith and having overlapping node ranges, and traverse the extraction tree, based upon user input from said input component, along an access path from a root node to a terminal node including a selected access object.