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
........................<開口與開口結構>
............................開口
................................<依形式區分之開口>
....................................<窗戶與窗戶構造>
........................................<窗戶構造>
............................................<窗框與窗框構造>
................................................<窗框構造>
|||....................................................窗框上檻
....................................................窗台
|||........................................................凸耳窗臺
|||........................................................滑窗臺
|||................................................窗框 (窗邊框)