特别要注意，对话框应该展现出明显的视觉层次，按照主体的相似性进行视觉分组。 还要按照阅读顺序惯例来布局（比如在西方文化中，一般来说是从左到右，从上到下）。

• In particular, a dialog should exhibit a strong visual hierarchy, visual groupings based upon similarities in subject, and a layout based on the conventional reading order (left to right and top to bottom for Western cultures).