It is clear that these strategies require “significance” decisions. In (2c) we must decide on the order of “importance” of the facets in a subject field. In (2b) we are dependent on the sequence chosen for the array of terms in a facet: does that sequence list the “most important” terms first? In strategy (2a) we face the problem, is the nature of a facet understandable from a display of its name alone, without some sample of its term content?