藝術與建築詞典根目錄
....物件層面
........組件 (層級名)
............成分
................<依特定背景區分之組件>
....................建築元素
........................<結構元素與結構元素構造>
............................<結構元素>
................................<封閉式結構元素>
....................................<屋頂與屋頂構造>
........................................<屋頂構造>
............................................<外部屋頂構造>
................................................<屋頂附屬物>
....................................................屋頂窗
|||........................................................無玻璃天窗
|||........................................................眉形老虎窗
........................................................山形屋頂窗
|||............................................................三角楣飾屋頂窗
|||........................................................帶脊屋頂窗
|||........................................................單坡屋頂窗
|||....................................................吊鐘構架