“…We were unable to locate an evaluation case study that focused on the navigation effectiveness of a taxonomy's hierarchical structure and categories. Many studies explored the advantages and disadvantages of navigation as an alternative to key word searching (Borgman, Hirsh, Gallagher, & Walter, ; Lee & Olson, ; Beheshti, Large, & Tam, ), and usability issues involved in website navigation (Clausen, ; Seock & Norton, ; Luong & Liew, ; Harding, Szakacs, & Parry, ). Although some cases involved taxonomies, they focused on the interfaces implemented with those taxonomies (Uddin & Janecek, ), or preferences for online displays of taxonomies (Large, Beheshti, Clement, Tabatabaei, & Tam, ).…”