3 <title>Taxonomy of Categories</title>
6 <h1>Taxonomy of Categories</h1>
8 Facets are defined using a hierarchy of categories, known as a
12 For example, in a book store application, a Taxonomy could have the
19 <li>J. K. Rowling</li>
30 The <i>Taxonomy</i> translates category-paths into category-ordinal and vice versa.