wireframe
/ˈwaɪəfreɪm/noun
1- Computing a skeletal three dimensional model in which only lines and vertices are represented【计算机】三维线框模型。
1.1
- an image or set of images which displays the functional elements of a website or page, typically used for planning a site's structure and functionality（尤指用于规划网站架构和功能的）网站（或网页）示意图。